View source for Isthmian League

{{Short description|Football League}}
{{EngvarB|date=April 2018}}
{{Use dmy dates|date=April 2018}}
{{Infobox football league
| image           = Isthmian League logo.webp
| pixels          = 
| country         = England
| other countries = Jersey
| founded         = {{start date and age|1905}}
| teams           = '''88'''{{plainlist|
* Premier Division: 22
* North Division: 22
* South Central Division: 22
* South East Division: 22
}}
| promotion       = [[National League South]]
| relegation      = {{plainlist|
* [[Combined Counties Football League|Combined Counties League]] North or South
* [[Eastern Counties Football League|Eastern Counties League]]
* [[Essex Senior Football League|Essex Senior League]]
* [[Southern Combination Football League|Southern Combination League]]
* [[Southern Counties East Football League|Southern Counties East League]]
* [[Spartan South Midlands Football League|Spartan South Midlands League]]
* [[Wessex Football League|Wessex League]]
}}
| levels          = 7–8
| domest_cup      = {{plainlist|
* [[FA Cup]]
* [[FA Trophy]]
* [[Isthmian League Cup]]
}}
| champions       = [[Horsham F.C.|Horsham]] (Premier Division)<br>[[Brentwood Town F.C.|Brentwood Town]] (North Division)<br>[[Farnham Town F.C.|Farnham Town]] (South Central Division)<br>[[Ramsgate F.C.|Ramsgate]] (South East Division)<br>([[2024–25 Isthmian League|2024–25]])
| website         = {{official URL}}
| current         = [[2025-26 Isthmian League|2025–26 Season]]
}}

The '''Isthmian League''' ({{IPAc-en|ˈ|ɪ|s|(|θ|)|m|i|ən}}) is a regional [[Association football|football]] league covering [[Greater London]], [[East of England|East]] and [[South East England]], featuring mostly semi-professional clubs. Together with the [[Southern Football League]] and the [[Northern Premier League]] it forms levels seven and eight of the [[English football league system]].

Founded in 1905 by amateur clubs in the London area, the league now consists of 88 teams in four divisions: the Premier Division above its three feeder divisions, the North, South Central and South East divisions.
Together with the [[Southern Football League|Southern League]] and the [[Northern Premier League]], it forms the seventh and eighth levels of the [[English football league system]]. It has various regional feeder leagues and the league as a whole is a feeder league mainly to the [[National League South]].

==History==
Before the Isthmian League was formed, there were no leagues in which amateur football clubs could compete, only knock-out cup competitions. Therefore, a meeting took place between representatives of [[Casuals F.C.|Casuals]], [[Civil Service F.C.|Civil Service]], [[Clapton F.C.|Clapton]], Ealing Association, [[Ilford F.C.|Ilford]] and [[London Caledonians F.C.|London Caledonians]] to discuss the creation of a strong amateur league. All the clubs supported the idea and the Isthmian League was born on 7 March 1905. Membership of the league was through invitation only. The league was very strongly dedicated to the cause of [[amateurism]] in sport; consequently, the champions of the league did not even receive a trophy or medals; the league's Latin motto was ''honor sufficit'' ('honour is sufficient').

Thus, those clubs less able to compete financially gravitated to it rather than to the [[Southern Football League|Southern League]], which attracted clubs with ambition and money. Although the Isthmian League established itself as one of the strongest amateur leagues in the country, routinely providing the winners of the [[FA Amateur Cup]], it was still regarded as being at a lower level than the Southern League, which had developed into the top regional [[semi-professional]] league. By 1922 the Isthmian League had fourteen clubs and over the next five decades, only a few new members were admitted, mainly to fill vacancies left by clubs leaving the league. Most new Isthmian League members joined from the [[Athenian League]], which was similarly dedicated to amateurism.

The Isthmian League was most likely named after the ancient [[Isthmian Games]], with the later [[Athenian League]], [[Corinthian League (football)|Corinthian League]], [[Delphian League]], [[Spartan League]], [[Parthenon League]] and [[Aetolian League (football)|Aetolian League]] all adding a Classical Greek flavour to amateur football competition. In 1962 an 'all-star' team from the Isthmian League entered the [[1962 Ugandan Independence Tournament]], drawing both their games versus [[Kenya national football team|Kenya]] and [[Ghana national football team|Ghana]].

The league finally began to permit professionalism in the mid-1970s when the [[Football Association]] abolished the long-standing distinction between amateur and professional status with effect from the 1974–75 season. A second division of sixteen clubs was formed in 1973 and a third division followed in 1977. However, the league still remained officious and refused to participate in the formation of the [[National League (division)|Alliance Premier League]] in 1979 and whilst two Isthmian clubs, [[Enfield F.C.|Enfield]] and [[Dagenham F.C.|Dagenham]], defected to the APL in 1981, it was not until 1985 that the Isthmian League champions were given a promotion place to the newly renamed [[National League (English football)|Football Conference]]. The reward of promotion into the Conference means that, since 1985, no team has won the league champions title two seasons in succession (as had happened on 22 occasions previously). The Athenian League disbanded in 1984 when the Isthmian League Second Division split into North and South Divisions. These were restructured yet again to Second and Third Divisions in 1991.

In 2002, the league was restructured once more, with the First and Second Divisions merging to become Division One North and Division One South (later renamed simply the North and South divisions), and the Third Division being renamed as Division Two. In addition, the league's three feeder leagues—the [[Combined Counties Football League|Combined Counties League]], [[Essex Senior Football League|Essex Senior League]] and [[Spartan South Midlands Football League|Spartan South Midlands League]]—ran in parallel with Division Two, and were able to feed directly into the regional Division Ones.

In 2004, [[The Football Association]] pushed through a major restructuring of the entire national non-league [[National League System]], creating new regional divisions of the Football Conference feeding into the top, national, level. As a consequence of this restructuring, the Isthmian League was reduced back down to three divisions, and its boundaries were changed to remove the overlap with the [[Southern Football League|Southern League]].

In 2006, further reorganisation saw a reversion to two regional Division Ones and the disbandment of Division Two. This current plan calls for clubs based on the edges of the Isthmian League's territory to transfer to and from the Southern League as necessary to maintain numerical balance between the leagues. One team, [[Clapton F.C.|Clapton]], who were ever present in the Isthmian League since its foundation, were moved to the Essex Senior League for the 2006–07 season. [[Dulwich Hamlet F.C.|Dulwich Hamlet]], who had joined the league in 1907, became its longest serving member until their promotion to the National League South for the 2018–19 season.

In May 2017, [[The Football Association]] chose the Isthmian League to add a third regional division at Step 4 as part of further restructuring in the National League System, reducing all divisions at Step 4 to 20 teams. The new division started play in the 2018–19 season.<ref>{{cite news|url=http://nonleague.pitchero.com/news/the-ryman-league-premier-division/big-shake-non-league-football-confirmed/ |title=The big shake up of non-League football confirmed |work=Pitchero |publisher=Pitch Hero Ltd.|date=16 May 2017|access-date=18 May 2017}}</ref>

==Current Isthmian League members==
The league's 2025&ndash;26 constitution is as follows:
{{col-begin}}
{{col-5}}
===Premier Division===
* [[Aveley F.C.|Aveley]]
* [[Billericay Town F.C.|Billericay Town]]
* [[Brentwood Town F.C.|Brentwood Town]]
* [[Burgess Hill Town F.C.|Burgess Hill Town]]
* [[Canvey Island F.C.|Canvey Island]]
* [[Carshalton Athletic F.C.|Carshalton Athletic]]
* [[Chatham Town F.C.|Chatham Town]]
* [[Cheshunt F.C.|Cheshunt]]
*[[Chichester City F.C.|Chichester City]]
*[[Cray Valley Paper Mills F.C.|Cray Valley Paper Mills]]
* [[Cray Wanderers F.C.|Cray Wanderers]]
* [[Dartford F.C.|Dartford]]
*[[Dulwich Hamlet F.C.|Dulwich Hamlet]]
* [[Folkestone Invicta F.C.|Folkestone Invicta]]
* [[Hashtag United F.C.|Hashtag United]]
* [[Lewes F.C.|Lewes]]
* [[Potters Bar Town F.C.|Potters Bar Town]]
* [[Ramsgate F.C.|Ramsgate]]
* [[St Albans City F.C.|St Albans City]]
* [[Welling United F.C.|Welling United]]
* [[Whitehawk F.C.|Whitehawk]]
* [[Wingate & Finchley F.C.|Wingate & Finchley]]
{{col-5}}

===North Division===
*[[Bowers & Pitsea F.C.|Bowers & Pitsea]]
* [[Brantham Athletic F.C.|Brantham Athletic]]
* [[Brightlingsea Regent F.C.|Brightlingsea Regent]]
*[[Cambridge City F.C.|Cambridge City]]
*[[Concord Rangers F.C.|Concord Rangers]]
* [[Downham Town F.C.|Downham Town]]
* [[Felixstowe & Walton United F.C.|Felixstowe & Walton United]]
* [[Gorleston F.C.|Gorleston]]
* [[Grays Athletic F.C.|Grays Athletic]]
* [[Heybridge Swifts F.C.|Heybridge Swifts]]
* [[Lowestoft Town F.C.|Lowestoft Town]]
* [[Maldon & Tiptree F.C.|Maldon & Tiptree]]
*[[Mildenhall Town F.C.|Mildenhall Town]]
*[[Newmarket Town F.C.|Newmarket Town]]
* [[Redbridge F.C.|Redbridge]]
* [[Stanway Rovers F.C.|Stanway Rovers]]
* [[Takeley F.C.|Takeley]]
*[[Tilbury F.C.|Tilbury]]
*[[Waltham Abbey F.C.|Waltham Abbey]]
* [[Walthamstow F.C.|Walthamstow]]
* [[Witham Town F.C.|Witham Town]]
* [[Wroxham F.C.|Wroxham]]
{{col-5}}

===South Central Division===
* [[A.F.C. Portchester]]
* [[Ascot United F.C.|Ascot United]]
* [[Bedfont Sports F.C.|Bedfont Sports]]
* [[Binfield F.C.|Binfield]]
* [[Bognor Regis Town F.C.|Bognor Regis Town]]
* [[Egham Town F.C.|Egham Town]]
* [[Fareham Town F.C.|Fareham Town]]
* [[Hanworth Villa F.C.|Hanworth Villa]]
*[[Harrow Borough F.C.|Harrow Borough]]
* [[Hartley Wintney F.C.|Hartley Wintney]]
*[[Hayes & Yeading United F.C.|Hayes & Yeading United]]
*[[Hendon F.C.|Hendon]]
*[[Horndean F.C.|Horndean]]
*[[Kingstonian F.C.|Kingstonian]]
* [[Leatherhead F.C.|Leatherhead]]
* [[Littlehampton Town F.C.|Littlehampton Town]]
* [[Metropolitan Police F.C.|Metropolitan Police]]
*[[Moneyfields F.C.|Moneyfields]]
* [[Raynes Park Vale F.C.|Raynes Park Vale]]
* [[South Park F.C.|South Park Reigate]]
* [[Southall F.C.|Southall]]
* [[Westfield F.C. (Surrey)|Westfield]]
{{col-5}}

===South East Division===
*[[AFC Croydon Athletic]]
* [[AFC Whyteleafe]]
* [[Ashford United F.C.|Ashford United]]
* [[Beckenham Town F.C.|Beckenham Town]]
* [[Broadbridge Heath F.C.|Broadbridge Heath]]
* [[Crowborough Athletic F.C.|Crowborough Athletic]]
*[[Deal Town F.C.|Deal Town]]
* [[East Grinstead Town F.C.|East Grinstead Town]]
*[[Eastbourne Town F.C.|Eastbourne Town]]
* [[Erith Town F.C.|Erith Town]]
* [[Faversham Town F.C.|Faversham Town]]
* [[Hassocks F.C.|Hassocks]]
* [[Hastings United F.C.|Hastings United]]
* [[Herne Bay F.C.|Herne Bay]]
* [[Jersey Bulls F.C.|Jersey Bulls]]
*[[Margate F.C.|Margate]]
* [[Merstham F.C.|Merstham]]
* [[Sevenoaks Town F.C.|Sevenoaks Town]]
* [[Sheppey United F.C.|Sheppey United]]
* [[Sittingbourne F.C.|Sittingbourne]]
* [[Three Bridges F.C.|Three Bridges]]
* [[VCD Athletic F.C.|VCD Athletic]]
{{col-5}}

{{location map+ |UK England Southeast
|width=350 |float=right |caption=Locations of the Isthmian League clubs by division {{ubl|[[File:Dark Red 800000 pog.svg|8px]] – Premier Division|[[File:Blue 000080 pog.svg|8px]] – North Division|[[File:Yellow pog.svg|8px]] – South Central Division|[[File:Green 008000 pog.svg|8px]] – South East Division}} Not shown: [[Jersey Bulls F.C.|Jersey Bulls]]&nbsp;(further&nbsp;south)|places=

{{location map~ |UK England Southeast |lat=51.5740 |long=0.5181  |mark=Blue 000080 pog.svg |label=Bowers & Pitsea |label_size=0}}
{{location map~ |UK England Southeast |lat=51.9578 |long=1.0590  |mark=Blue 000080 pog.svg |label=Brantham Athletic |label_size=0}}
{{location map~ |UK England Southeast |lat=51.8158 |long=1.0263  |mark=Blue 000080 pog.svg |label=Brightlingsea Regent |label_size=0}}
{{location map~ |UK England Southeast |lat=52.1333 |long=0.1736  |mark=Blue 000080 pog.svg |label=Cambridge City |label_size=0}}
{{location map~ |UK England Southeast |lat=51.5125 |long=0.5755  |mark=Blue 000080 pog.svg |label=Concord Rangers|label_size=0}}
{{location map~ |UK England Southeast |lat=52.6095 |long=0.3844  |mark=Blue 000080 pog.svg |label=Downham Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.9707 |long=1.3558  |mark=Blue 000080 pog.svg |label=Felixstowe & Walton United |label_size=0}}
{{location map~ |UK England Southeast |lat=52.5706 |long=1.7342  |mark=Blue 000080 pog.svg |label=Gorleston |label_size=0}}
{{location map~ |UK England Southeast |lat=51.5035 |long=0.2529  |mark=Blue 000080 pog.svg |label=Grays Athletic |label_size=0}}
{{location map~ |UK England Southeast |lat=51.7441 |long=0.7006  |mark=Blue 000080 pog.svg |label=Heybridge Swifts |label_size=0}}
{{location map~ |UK England Southeast |lat=52.4807 |long=1.7470  |mark=Blue 000080 pog.svg |label=Lowestoft Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.7208 |long=0.6940  |mark=Blue 000080 pog.svg |label=Maldon & Tiptree |label_size=0}}
{{location map~ |UK England Southeast |lat=52.3424 |long=0.5150  |mark=Blue 000080 pog.svg |label=Mildenhall Town |label_size=0}}
{{location map~ |UK England Southeast |lat=52.2392 |long=0.4114  |mark=Blue 000080 pog.svg |label=Newmarket Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.5861 |long=0.0891  |mark=Blue 000080 pog.svg |label=Redbridge |label_size=0}}
{{location map~ |UK England Southeast |lat=51.8877 |long=0.8448  |mark=Blue 000080 pog.svg |label=Stanway Rovers |label_size=0}}
{{location map~ |UK England Southeast |lat=51.8657 |long=0.2676  |mark=Blue 000080 pog.svg |label=Takeley |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4700 |long=0.3633  |mark=Blue 000080 pog.svg |label=Tilbury |label_size=0}}
{{location map~ |UK England Southeast |lat=51.6827 |long=0.0058  |mark=Blue 000080 pog.svg |label=Waltham Abbey |label_size=0}}
{{location map~ |UK England Southeast |lat=51.5975 |long=-0.0089 |mark=Blue 000080 pog.svg |label=Walthamstow |label_size=0}}
{{location map~ |UK England Southeast |lat=51.7997 |long=0.6266  |mark=Blue 000080 pog.svg |label=Witham Town |label_size=0}}
{{location map~ |UK England Southeast |lat=52.7043 |long=1.4073  |mark=Blue 000080 pog.svg |label=Wroxham |label_size=0}}

{{location map~ |UK England Southeast |lat=50.8444 |long=-1.1492 |mark=Yellow pog.svg |label=A.F.C. Portchester |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4152 |long=-0.6634 |mark=Yellow pog.svg |label=Ascot United |label_size=0}}
{{location map~ |UK England Southeast |lat=51.46   |long=-0.4269 |mark=Yellow pog.svg |label=Bedfont Sports |label_size=0}}
{{location map~ |UK England Southeast |lat=51.2680 |long=-1.1119 |mark=Yellow pog.svg |label=Binfield |label_size=0}}
{{location map~ |UK England Southeast |lat=50.7870 |long=-0.6902 |mark=Yellow pog.svg |label=Bognor Regis |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4264 |long=-0.5333 |mark=Yellow pog.svg |label=Egham Town |label_size=0}}
{{location map~ |UK England Southeast |lat=50.8456 |long=-1.1903 |mark=Yellow pog.svg |label=Fareham Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4310 |long=-0.3810 |mark=Yellow pog.svg |label=Hanworth Villa |label_size=0}}
{{location map~ |UK England Southeast |lat=51.5584 |long=-0.3732 |mark=Yellow pog.svg |label=Harrow Borough |label_size=0}}
{{location map~ |UK England Southeast |lat=51.3011 |long=-0.9064 |mark=Yellow pog.svg |label=Hartley Wintney |label_size=0}}
{{location map~ |UK England Southeast |lat=51.5081 |long=-0.3948 |mark=Yellow pog.svg |label=Hayes & Yeading |label_size=0}}
{{location map~ |UK England Southeast |lat=51.5766 |long=-0.2541 |mark=Yellow pog.svg |label=Hendon |label_size=0}}
{{location map~ |UK England Southeast |lat=50.9170 |long=-1.0037 |mark=Yellow pog.svg |label=Horndean |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4051 |long=-0.2819 |mark=Yellow pog.svg |label=Kingstonian |label_size=0}}
{{location map~ |UK England Southeast |lat=51.2920 |long=-0.3324 |mark=Yellow pog.svg |label=Leatherhead |label_size=0}}
{{location map~ |UK England Southeast |lat=50.8081 |long=-0.5300 |mark=Yellow pog.svg |label=Littlehampton Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.3905 |long=-0.3517 |mark=Yellow pog.svg |label=Metropolitan Police|label_size=0}}
{{location map~ |UK England Southeast |lat=50.8145 |long=-1.0607 |mark=Yellow pog.svg |label=Moneyfields |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4033 |long=-0.2271 |mark=Yellow pog.svg |label=Raynes Park Vale |label_size=0}}
{{location map~ |UK England Southeast |lat=51.2233 |long=-0.2155 |mark=Yellow pog.svg |label=South Park |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4579 |long=-0.4743 |mark=Yellow pog.svg |label=Southall |label_size=0}}
{{location map~ |UK England Southeast |lat=51.3090 |long=-0.5563 |mark=Yellow pog.svg |label=Westfield |label_size=0}}

{{location map~ |UK England Southeast |lat=51.3934 |long=-0.1266 |mark=Green 008000 pog.svg |label=AFC Croydon Athletic |label_size=0}}
{{location map~ |UK England Southeast |lat=51.3047 |long=-0.0796 |mark=Green 008000 pog.svg |label=AFC Whyteleafe |label_size=0}}
{{location map~ |UK England Southeast |lat=51.1050 |long=0.8559  |mark=Green 008000 pog.svg |label=Ashford United |label_size=0}}
{{location map~ |UK England Southeast |lat=51.3927 |long=-0.0288 |mark=Green 008000 pog.svg |label=Beckenham Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.0637 |long=-0.3592 |mark=Green 008000 pog.svg |label=Broadbridge Heath |label_size=0}}
{{location map~ |UK England Southeast |lat=51.0419 |long=0.1656  |mark=Green 008000 pog.svg |label=Crowborough Athletic |label_size=0}}
{{location map~ |UK England Southeast |lat=51.2136 |long=1.3891  |mark=Green 008000 pog.svg |label=Deal Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.1313 |long=0.0021  |mark=Green 008000 pog.svg |label=East Grinstead Town |label_size=0}}
{{location map~ |UK England Southeast |lat=50.7661 |long=0.2764  |mark=Green 008000 pog.svg |label=Eastbourne Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4190 |long=0.1100  |mark=Green 008000 pog.svg |label=Erith Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.3069 |long=0.8956  |mark=Green 008000 pog.svg |label=Faversham Town |label_size=0}}
{{location map~ |UK England Southeast |lat=50.9197 |long=-0.1506 |mark=Green 008000 pog.svg |label=Hassocks |label_size=0}}
{{location map~ |UK England Southeast |lat=50.8745 |long=0.5871  |mark=Green 008000 pog.svg |label=Hastings United |label_size=0}}
{{location map~ |UK England Southeast |lat=51.3647 |long=1.1299  |mark=Green 008000 pog.svg |label=Herne Bay |label_size=0}}
{{location map~ |UK England Southeast |lat=51.3805 |long=1.3739  |mark=Green 008000 pog.svg |label=Margate |label_size=0}}
{{location map~ |UK England Southeast |lat=51.2582 |long=-0.1467 |mark=Green 008000 pog.svg |label=Merstham |label_size=0}}
{{location map~ |UK England Southeast |lat=51.2908 |long=0.2020  |mark=Green 008000 pog.svg |label=Sevenoaks Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.422  |long=0.7696  |mark=Green 008000 pog.svg |label=Sheppey United |label_size=0}}
{{location map~ |UK England Southeast |lat=51.3145 |long=0.7294  |mark=Green 008000 pog.svg |label=Sittingbourne |label_size=0}}
{{location map~ |UK England Southeast |lat=51.1153 |long=-0.1677 |mark=Green 008000 pog.svg |label=Three Bridges |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4559 |long=0.1694  |mark=Green 008000 pog.svg |label=VCD Athletic |label_size=0}}

{{location map~ |UK England Southeast |lat=51.5035 |long=0.2613  |mark=Dark Red 800000 pog.svg |label=Aveley |label_size=0}}
{{location map~ |UK England Southeast |lat=51.6220 |long=0.4041  |mark=Dark Red 800000 pog.svg |label=Billericay Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.6340 |long=0.3006  |mark=Dark Red 800000 pog.svg |label=Brentwood Town |label_size=0}}
{{location map~ |UK England Southeast |lat=50.9672 |long=-0.1241 |mark=Dark Red 800000 pog.svg |label=Burgess Hill Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.5165 |long=0.6157  |mark=Dark Red 800000 pog.svg |label=Canvey Island |label_size=0}}
{{location map~ |UK England Southeast |lat=51.3697 |long=-0.1718 |mark=Dark Red 800000 pog.svg |label=Carshalton Athletic |label_size=0}}
{{location map~ |UK England Southeast |lat=51.3687 |long=0.5217  |mark=Dark Red 800000 pog.svg |label=Chatham Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.6944 |long=-0.0416 |mark=Dark Red 800000 pog.svg |label=Cheshunt |label_size=0}}
{{location map~ |UK England Southeast |lat=50.8425 |long=-0.7754 |mark=Dark Red 800000 pog.svg |label=Chichester City |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4506 |long=0.0347  |mark=Dark Red 800000 pog.svg |label=Cray Valley Paper Mills |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4299 |long=0.0818  |mark=Dark Red 800000 pog.svg |label=Cray Wanderers |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4372 |long=0.2308  |mark=Dark Red 800000 pog.svg |label=Dartford |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4612 |long=-0.0841 |mark=Dark Red 800000 pog.svg |label=Dulwich Hamlet |label_size=0}}
{{location map~ |UK England Southeast |lat=51.0866 |long=1.1595  |mark=Dark Red 800000 pog.svg |label=Folkestone Invicta |label_size=0}}
{{location map~ |UK England Southeast |lat=51.5738 |long=0.5164  |mark=Dark Red 800000 pog.svg |label=Hashtag United |label_size=0}}
{{location map~ |UK England Southeast |lat=50.8690 |long=0.0123  |mark=Dark Red 800000 pog.svg |label=Lewes |label_size=0}}
{{location map~ |UK England Southeast |lat=51.6962 |long=-0.1777 |mark=Dark Red 800000 pog.svg |label=Potters Bar Town |label_size=0}}
{{location map~ |UK England Southeast |lat=51.3325 |long=1.3995  |mark=Dark Red 800000 pog.svg |label=Ramsgate |label_size=0}}
{{location map~ |UK England Southeast |lat=51.753  |long=-0.324  |mark=Dark Red 800000 pog.svg |label=St Albans City |label_size=0}}
{{location map~ |UK England Southeast |lat=51.4603 |long=0.1164  |mark=Dark Red 800000 pog.svg |label=Welling United |label_size=0}}
{{location map~ |UK England Southeast |lat=50.8214 |long=-0.0961 |mark=Dark Red 800000 pog.svg |label=Whitehawk |label_size=0}}
{{location map~ |UK England Southeast |lat=51.6068 |long=-0.1715 |mark=Dark Red 800000 pog.svg |label=Wingate & Finchley |label_size=0}}
}}
{{col-end}}

==Champions==
{| class="wikitable" style="text-align: left"
!Season
!Isthmian League
|-
|[[1905–06 Isthmian League|1905–06]]
|[[London Caledonians F.C.|London Caledonians]]
|-
|[[1906–07 Isthmian League|1906–07]]
|[[Ilford F.C.|Ilford]]
|-
|[[1907–08 Isthmian League|1907–08]]
|[[London Caledonians F.C.|London Caledonians]]
|-
|[[1908–09 Isthmian League|1908–09]]
|[[Bromley F.C.|Bromley]]
|-
|[[1909–10 Isthmian League|1909–10]]
|[[Bromley F.C.|Bromley]]
|-
|[[1910–11 Isthmian League|1910–11]]
|[[Clapton F.C.|Clapton]]
|-
|[[1911–12 Isthmian League|1911–12]]
|[[London Caledonians F.C.|London Caledonians]]
|-
|[[1912–13 Isthmian League|1912–13]]
|[[London Caledonians F.C.|London Caledonians]]
|-
|[[1913–14 Isthmian League|1913–14]]
|[[London Caledonians F.C.|London Caledonians]]
|-
|1914–19
|''Not held due to [[World War I]]''
|-
|[[1919 Isthmian League|1919]]
|[[Leytonstone F.C.|Leytonstone]]
|-
|[[1919–20 Isthmian League|1919–20]]
|[[Dulwich Hamlet F.C.|Dulwich Hamlet]]
|-
|[[1920–21 Isthmian League|1920–21]]
|[[Ilford F.C.|Ilford]]
|-
|[[1921–22 Isthmian League|1921–22]]
|[[Ilford F.C.|Ilford]]
|-
|[[1922–23 Isthmian League|1922–23]]
|[[Clapton F.C.|Clapton]]
|-
|[[1923–24 Isthmian League|1923–24]]
|[[St Albans City F.C.|St Albans City]]
|-
|[[1924–25 Isthmian League|1924–25]]
|[[London Caledonians F.C.|London Caledonians]]
|-
|[[1925–26 Isthmian League|1925–26]]
|[[Dulwich Hamlet F.C.|Dulwich Hamlet]]
|-
|[[1926–27 Isthmian League|1926–27]]
|[[St Albans City F.C.|St Albans City]]
|-
|[[1927–28 Isthmian League|1927–28]]
|[[St Albans City F.C.|St Albans City]]
|-
|[[1928–29 Isthmian League|1928–29]]
|[[Nunhead F.C.|Nunhead]]
|-
|[[1929–30 Isthmian League|1929–30]]
|[[Nunhead F.C.|Nunhead]]
|-
|[[1930–31 Isthmian League|1930–31]]
|[[Wimbledon F.C.|Wimbledon]]
|-
|[[1931–32 Isthmian League|1931–32]]
|[[Wimbledon F.C.|Wimbledon]]
|-
|[[1932–33 Isthmian League|1932–33]]
|[[Dulwich Hamlet F.C.|Dulwich Hamlet]]
|-
|[[1933–34 Isthmian League|1933–34]]
|[[Kingstonian F.C.|Kingstonian]]
|-
|[[1934–35 Isthmian League|1934–35]]
|[[Wimbledon F.C.|Wimbledon]]
|-
|[[1935–36 Isthmian League|1935–36]]
|[[Wimbledon F.C.|Wimbledon]]
|-
|[[1936–37 Isthmian League|1936–37]]
|[[Kingstonian F.C.|Kingstonian]]
|-
|[[1937–38 Isthmian League|1937–38]]
|[[Leytonstone F.C.|Leytonstone]]
|-
|[[1938–39 Isthmian League|1938–39]]
|[[Leytonstone F.C.|Leytonstone]]
|-
|1939–45
|''Not held due to [[World War II]]''
|-
|[[1945–46 Isthmian League|1945–46]]
|[[Walthamstow Avenue F.C.|Walthamstow Avenue]]
|-
|[[1946–47 Isthmian League|1946–47]]
|[[Leytonstone F.C.|Leytonstone]]
|-
|[[1947–48 Isthmian League|1947–48]]
|[[Leytonstone F.C.|Leytonstone]]
|-
|[[1948–49 Isthmian League|1948–49]]
|[[Dulwich Hamlet F.C.|Dulwich Hamlet]]
|-
|[[1949–50 Isthmian League|1949–50]]
|[[Leytonstone F.C.|Leytonstone]]
|-
|[[1950–51 Isthmian League|1950–51]]
|[[Leytonstone F.C.|Leytonstone]]
|-
|[[1951–52 Isthmian League|1951–52]]
|[[Leytonstone F.C.|Leytonstone]]
|-
|[[1952–53 Isthmian League|1952–53]]
|[[Walthamstow Avenue F.C.|Walthamstow Avenue]]
|-
|[[1953–54 Isthmian League|1953–54]]
|[[Bromley F.C.|Bromley]]
|-
|[[1954–55 Isthmian League|1954–55]]
|[[Walthamstow Avenue F.C.|Walthamstow Avenue]]
|-
|[[1955–56 Isthmian League|1955–56]]
|[[Wycombe Wanderers F.C.|Wycombe Wanderers]]
|-
|[[1956–57 Isthmian League|1956–57]]
|[[Wycombe Wanderers F.C.|Wycombe Wanderers]]
|-
|[[1957–58 Isthmian League|1957–58]]
|[[Tooting & Mitcham United F.C.|Tooting & Mitcham United]]
|-
|[[1958–59 Isthmian League|1958–59]]
|[[Wimbledon F.C.|Wimbledon]]
|-
|[[1959–60 Isthmian League|1959–60]]
|[[Tooting & Mitcham United F.C.|Tooting & Mitcham United]]
|-
|[[1960–61 Isthmian League|1960–61]]
|[[Bromley F.C.|Bromley]]
|-
|[[1961–62 Isthmian League|1961–62]]
|[[Wimbledon F.C.|Wimbledon]]
|-
|[[1962–63 Isthmian League|1962–63]]
|[[Wimbledon F.C.|Wimbledon]]
|-
|[[1963–64 Isthmian League|1963–64]]
|[[Wimbledon F.C.|Wimbledon]]
|-
|[[1964–65 Isthmian League|1964–65]]
|[[Hendon F.C.|Hendon]]
|-
|[[1965–66 Isthmian League|1965–66]]
|[[Leytonstone F.C.|Leytonstone]]
|-
|[[1966–67 Isthmian League|1966–67]]
|[[Sutton United F.C.|Sutton United]]
|-
|[[1967–68 Isthmian League|1967–68]]
|[[Enfield F.C.|Enfield]]
|-
|[[1968–69 Isthmian League|1968–69]]
|[[Enfield F.C.|Enfield]]
|-
|[[1969–70 Isthmian League|1969–70]]
|[[Enfield F.C.|Enfield]]
|-
|[[1970–71 Isthmian League|1970–71]]
|[[Wycombe Wanderers F.C.|Wycombe Wanderers]]
|-
|[[1971–72 Isthmian League|1971–72]]
|[[Wycombe Wanderers F.C.|Wycombe Wanderers]]
|-
|[[1972–73 Isthmian League|1972–73]]
|[[Hendon F.C.|Hendon]]
|}
''For the 1973–74 season, Division Two was added.''
{| class="wikitable" style="text-align: left"
!Season
!Division One
!Division Two
|-
|[[1973–74 Isthmian League|1973–74]]
|[[Wycombe Wanderers F.C.|Wycombe Wanderers]]
|[[Dagenham F.C.|Dagenham]]
|-
|[[1974–75 Isthmian League|1974–75]]
|[[Wycombe Wanderers F.C.|Wycombe Wanderers]]
|[[Staines Town]]
|-
|[[1975–76 Isthmian League|1975–76]]
|[[Enfield F.C.|Enfield]]
|[[Tilbury F.C.|Tilbury]]
|-
|[[1976–77 Isthmian League|1976–77]]
|[[Enfield F.C.|Enfield]]
|[[Boreham Wood F.C.|Boreham Wood]]
|}
''For the 1977–78 season, Division One was renamed the Premier Division, Division Two was renamed Division One and new Division Two was added.''
{| class="wikitable" style="text-align: left"
!Season
!Premier Division
!Division One
!Division Two
|-
|[[1977–78 Isthmian League|1977–78]]
|[[Enfield F.C.|Enfield]]
|[[Dulwich Hamlet F.C.|Dulwich Hamlet]]
|[[Epsom & Ewell F.C.|Epsom & Ewell]]
|-
|[[1978–79 Isthmian League|1978–79]]
|[[Barking F.C.|Barking]]
|[[Harrow Borough F.C.|Harrow Borough]]
|[[Farnborough Town F.C.|Farnborough Town]]
|-
|[[1979–80 Isthmian League|1979–80]]
|[[Enfield F.C.|Enfield]]
|[[Redbridge Forest F.C.|Leytonstone/Ilford]]
|[[Billericay Town F.C.|Billericay Town]]
|-
|[[1980–81 Isthmian League|1980–81]]
|[[Slough Town F.C.|Slough Town]]
|[[Bishop's Stortford F.C.|Bishop's Stortford]]
|[[Feltham F.C. (1946)|Feltham]]
|-
|[[1981–82 Isthmian League|1981–82]]
|[[Redbridge Forest F.C.|Leytonstone & Ilford]]
|[[Wokingham Town F.C.|Wokingham Town]]
|[[Worthing F.C.|Worthing]]
|-
|[[1982–83 Isthmian League|1982–83]]
|[[Wycombe Wanderers F.C.|Wycombe Wanderers]]
|[[Worthing F.C.|Worthing]]
|[[Clapton F.C.|Clapton]]
|-
|[[1983–84 Isthmian League|1983–84]]
|[[Harrow Borough F.C.|Harrow Borough]]
|[[Windsor & Eton F.C. (1892)|Windsor & Eton]]
|[[Basildon United F.C.|Basildon United]]
|}
''For the 1984–85 season, Division Two was reorganised into North and South regions.''
{| class="wikitable" style="text-align: left"
!Season
!Premier Division
!Division One
!Division Two North
!Division Two South
|-
|[[1984–85 Isthmian League|1984–85]]
|[[Sutton United F.C.|Sutton United]]
|[[Farnborough Town F.C.|Farnborough Town]]
|[[Leyton F.C.|Leyton Wingate]]
|[[Grays Athletic F.C.|Grays Athletic]]
|-
|[[1985–86 Isthmian League|1985–86]]
|[[Sutton United F.C.|Sutton United]]
|[[St Albans City F.C.|St Albans City]]
|[[Stevenage F.C.|Stevenage Borough]]
|[[Southwick F.C.|Southwick]]
|-
|[[1986–87 Isthmian League|1986–87]]
|[[Wycombe Wanderers F.C.|Wycombe Wanderers]]
|[[Redbridge Forest F.C.|Leytonstone/Ilford]]
|[[Chesham United F.C.|Chesham United]]
|[[Woking F.C.|Woking]]
|-
|[[1987–88 Isthmian League|1987–88]]
|[[Yeovil Town F.C.|Yeovil Town]]
|[[Marlow F.C.|Marlow]]
|[[Wivenhoe Town F.C.|Wivenhoe Town]]
|[[Chalfont St Peter F.C.|Chalfont St Peter]]
|-
|[[1988–89 Isthmian League|1988–89]]
|[[Redbridge Forest F.C.|Leytonstone/Ilford]]
|[[Staines Town F.C.|Staines Town]]
|[[Harlow Town F.C.|Harlow Town]]
|[[Dorking F.C.|Dorking]]
|-
|[[1989–90 Isthmian League|1989–90]]
|[[Slough Town F.C.|Slough Town]]
|[[Wivenhoe Town F.C.|Wivenhoe Town]]
|[[Heybridge Swifts F.C.|Heybridge Swifts]]
|[[Yeading F.C.|Yeading]]
|-
|[[1990–91 Isthmian League|1990–91]]
|[[Redbridge Forest F.C.|Redbridge Forest]]
|[[Chesham United F.C.|Chesham United]]
|[[Stevenage F.C.|Stevenage Borough]]
|[[Abingdon Town F.C.|Abingdon Town]]
|}
''For the 1991–92 season, regional divisions Two were merged and Division Three was added.''
{| class="wikitable" style="text-align: left"
!Season
!Premier Division
!Division One
!Division Two
!Division Three
|-
|[[1991–92 Isthmian League|1991–92]]
|[[Woking F.C.|Woking]]
|[[Stevenage F.C.|Stevenage Borough]]
|[[Purfleet F.C.|Purfleet]]
|[[Edgware Town F.C.|Edgware Town]]
|-
|[[1992–93 Isthmian League|1992–93]]
|[[Chesham United F.C.|Chesham United]]
|[[Hitchin Town F.C.|Hitchin Town]]
|[[Worthing F.C.|Worthing]]
|[[Aldershot Town F.C.|Aldershot Town]]
|-
|[[1993–94 Isthmian League|1993–94]]
|[[Stevenage F.C.|Stevenage Borough]]
|[[Bishop's Stortford F.C.|Bishop's Stortford]]
|[[Newbury Town F.C.|Newbury Town]]
|[[Bracknell Town F.C.|Bracknell Town]]
|-
|[[1994–95 Isthmian League|1994–95]]
|[[Enfield F.C.|Enfield]]
|[[Boreham Wood F.C.|Boreham Wood]]
|[[Thame United F.C.|Thame United]]
|[[Collier Row F.C.|Collier Row]]
|-
|[[1995–96 Isthmian League|1995–96]]
|[[Hayes F.C.|Hayes]]
|[[Oxford City F.C.|Oxford City]]
|[[Canvey Island F.C.|Canvey Island]]
|[[Horsham F.C.|Horsham]]
|-
|[[1996–97 Isthmian League|1996–97]]
|[[Yeovil Town F.C.|Yeovil Town]]
|[[Chesham United F.C.|Chesham United]]
|[[Romford F.C.|Collier Row & Romford]]
|[[Wealdstone F.C.|Wealdstone]]
|-
|[[1997–98 Isthmian League|1997–98]]
|[[Kingstonian F.C.|Kingstonian]]
|[[Aldershot Town F.C.|Aldershot Town]]
|[[Canvey Island F.C.|Canvey Island]]
|[[Hemel Hempstead Town F.C.|Hemel Hempstead Town]]
|-
|[[1998–99 Isthmian League|1998–99]]
|[[Sutton United F.C.|Sutton United]]
|[[Canvey Island F.C.|Canvey Island]]
|[[Bedford Town F.C.|Bedford Town]]
|[[Ford United F.C.|Ford United]]
|-
|[[1999–2000 Isthmian League|1999–2000]]
|[[Dagenham & Redbridge F.C.|Dagenham & Redbridge]]
|[[Croydon F.C.|Croydon]]
|[[Hemel Hempstead Town F.C.|Hemel Hempstead Town]]
|[[East Thurrock United F.C.|East Thurrock United]]
|-
|[[2000–01 Isthmian League|2000–01]]
|[[Farnborough Town F.C.|Farnborough Town]]
|[[Boreham Wood F.C.|Boreham Wood]]
|[[Tooting & Mitcham United F.C.|Tooting & Mitcham United]]
|[[Arlesey Town F.C.|Arlesey Town]]
|-
|[[2001–02 Isthmian League|2001–02]]
|[[Gravesend & Northfleet F.C.|Gravesend & Northfleet]]
|[[Ford United F.C.|Ford United]]
|[[Lewes F.C.|Lewes]]
|[[Croydon Athletic F.C.|Croydon Athletic]]
|}
''At the end of the 1994–95 season, Enfield were denied promotion to the Conference. Their place was taken by Slough Town who finished as runners-up.''

''For the 2002–03 season, Division One was reorganised into North and South regions and Division Three was disbanded.''
{| class="wikitable" style="text-align: left"
!Season
!Premier Division
!Division One North
!Division One South
!Division Two
|-
|[[2002–03 Isthmian League|2002–03]]
|[[Aldershot Town F.C.|Aldershot Town]]
|[[Northwood F.C.|Northwood]]
|[[Carshalton Athletic F.C.|Carshalton Athletic]]
|[[Cheshunt F.C.|Cheshunt]]
|-
|[[2003–04 Isthmian League|2003–04]]
|[[Canvey Island F.C.|Canvey Island]]
|[[Yeading F.C.|Yeading]]
|[[Lewes F.C.|Lewes]]
|[[Leighton Town F.C.|Leighton Town]]
|}
''For the 2004–05 season Division Ones North and South were merged.''
{| class="wikitable" style="text-align: left"
!Season
!Premier Division
!Division One
!Division Two
|-
|[[2004–05 Isthmian League|2004–05]]
|[[Yeading F.C.|Yeading]]
|[[AFC Wimbledon]]
|[[Ilford F.C.|Ilford]]
|-
|[[2005–06 Isthmian League|2005–06]]
|[[Braintree Town F.C.|Braintree Town]]
|[[Ramsgate F.C.|Ramsgate]]
|[[Ware F.C.|Ware]]
|}
[[Image:DoverChamps09.jpg|thumb|right|[[Dover Athletic F.C.|Dover Athletic]] receive the Isthmian League Premier Division trophy in 2009]]
''For the 2006–07 season, Division One was reorganised into North and South regions and Division Two was disbanded.''
{| class="wikitable" style="text-align: left"
!Season
!Premier Division
!North Division
!South Division
|-
|[[2006–07 Isthmian League|2006–07]]
|[[Hampton & Richmond Borough F.C.|Hampton & Richmond Borough]]
|[[A.F.C. Hornchurch|AFC Hornchurch]]
|[[Maidstone United F.C.|Maidstone United]]
|-
|[[2007–08 Isthmian League|2007–08]]
|[[Chelmsford City F.C.|Chelmsford City]]
|[[Dartford F.C.|Dartford]]
|[[Dover Athletic F.C.|Dover Athletic]]
|-
|[[2008–09 Isthmian League|2008–09]]
|[[Dover Athletic F.C.|Dover Athletic]]
|[[Aveley F.C.|Aveley]]
|[[Kingstonian F.C.|Kingstonian]]
|-
|[[2009–10 Isthmian League|2009–10]]
|[[Dartford F.C.|Dartford]]
|[[Lowestoft Town F.C.|Lowestoft Town]]
|[[Croydon Athletic F.C.|Croydon Athletic]]
|-
|[[2010–11 Isthmian League|2010–11]]
|[[Sutton United F.C.|Sutton United]]
|[[East Thurrock United F.C.|East Thurrock United]]
|[[Metropolitan Police F.C.|Metropolitan Police]]
|-
|[[2011–12 Isthmian League|2011–12]]
|[[Billericay Town F.C.|Billericay Town]]
|[[Leiston F.C.|Leiston]]
|[[Whitehawk F.C.|Whitehawk]]
|-
|[[2012–13 Isthmian League|2012–13]]
|[[Whitehawk F.C.|Whitehawk]]
|[[Grays Athletic F.C.|Grays Athletic]]
|[[Dulwich Hamlet F.C.|Dulwich Hamlet]]
|-
|[[2013–14 Isthmian League|2013–14]]
|[[Wealdstone F.C.|Wealdstone]]
|[[VCD Athletic F.C.|VCD Athletic]]
|[[Peacehaven & Telscombe F.C.|Peacehaven & Telscombe]]
|-
|[[2014–15 Isthmian League|2014–15]]
|[[Maidstone United F.C.|Maidstone United]]
|[[Needham Market F.C.|Needham Market]]
|[[Burgess Hill Town F.C.|Burgess Hill Town]]
|-
|[[2015–16 Isthmian League|2015–16]]
|[[Hampton & Richmond Borough F.C.|Hampton & Richmond Borough]]
|[[A.F.C. Sudbury|AFC Sudbury]]
|[[Folkestone Invicta F.C.|Folkestone Invicta]]
|-
|[[2016–17 Isthmian League|2016–17]]
|[[Havant & Waterlooville F.C.|Havant & Waterlooville]]
|[[Brightlingsea Regent F.C.|Brightlingsea Regent]]
|[[Tooting & Mitcham United F.C.|Tooting & Mitcham United]]
|-
||[[2017–18 Isthmian League|2017–18]]
|[[Billericay Town F.C.|Billericay Town]]
|[[A.F.C. Hornchurch|AFC Hornchurch]]
|[[Carshalton Athletic F.C.|Carshalton Athletic]]
|}

''For the 2018–19 season, the South Division was reorganised into South Central and South East divisions.''
{| class="wikitable" style="text-align: left"
!Season
!Premier Division
!North Division
!South Central Division
!South East Division
|-
|[[2018–19 Isthmian League|2018–19]]
|[[Dorking Wanderers F.C.|Dorking Wanderers]]
|[[Bowers & Pitsea F.C.|Bowers & Pitsea]]
|[[Hayes & Yeading United F.C.|Hayes & Yeading United]]
|[[Cray Wanderers F.C.|Cray Wanderers]]
|-
|[[2019–20 Isthmian League|2019–20]]<sup>1</sup>
|''[[Worthing F.C.|Worthing]]''
|''[[Maldon & Tiptree F.C.|Maldon & Tiptree]]''
|''[[Ware F.C.|Ware]]''
|''[[Hastings United F.C.|Hastings United]]''
|-
|[[2020–21 Isthmian League|2020–21]]<sup>2</sup>
|''[[Worthing F.C.|Worthing]]''
|''[[Tilbury F.C.|Tilbury]]''
|''[[Waltham Abbey F.C.|Waltham Abbey]]''
|''[[Hastings United F.C.|Hastings United]]''
|-
|[[2021–22 Isthmian League|2021–22]]
|[[Worthing F.C.|Worthing]]
|[[Aveley F.C.|Aveley]]
|[[Bracknell Town F.C.|Bracknell Town]]
|[[Hastings United F.C.|Hastings United]]
|-
|[[2022–23 Isthmian League|2022–23]]
|[[Bishop's Stortford F.C.|Bishop's Stortford]]
|[[Hashtag United F.C.|Hashtag United]]
|[[Basingstoke Town F.C.|Basingstoke Town]]
|[[Chatham Town F.C.|Chatham Town]]
|-
|[[2023–24 Isthmian League|2023–24]]
|[[Hornchurch F.C.|Hornchurch]]
|[[Lowestoft Town F.C.|Lowestoft Town]]
|[[Chertsey Town F.C.|Chertsey Town]]
|[[Cray Valley Paper Mills F.C.|Cray Valley Paper Mills]]
|-
|[[2024–25 Isthmian League|2024–25]]
|[[Horsham F.C.|Horsham]]
|[[Brentwood Town F.C.|Brentwood Town]]
|[[Farnham Town F.C.|Farnham Town]]
|[[Ramsgate F.C.|Ramsgate]]
|}
{{small|<sup>1</sup> The 2019–20 season was terminated on 26 March 2020 due to the [[COVID-19 pandemic in England|coronavirus pandemic]]; the teams listed here were in first place in the standings at the time of the termination, but were not recognised as champions.}}

{{small|<sup>2</sup> The 2020–21 season was also terminated on 24 February 2021 due to the coronavirus pandemic; the teams listed here were in first place in the standings at the time of the termination, but were not recognised as champions.}}

===Promoted===
Since the league's formation in 1905, the following clubs have won promotion to higher levels of the [[English football league system]] -
{| class="wikitable" style="text-align: center"
!Seasons
!Promoted to
|-
|[[1979–80 Alliance Premier League|1979]]–[[1985–86 Alliance Premier League|1986]]||[[Alliance Premier League]]
|-
|[[1986–87 Football Conference|1986]]–[[2002–03 Football Conference|2003]]||[[Football Conference]]
|-
|[[2003–04 Football Conference|2003]]–[[2004–05 Football Conference#Conference National|2005]]||[[Football Conference National]]
|-
|[[2004–05 Football Conference#Conference North|2004]]–[[2014–15 Football Conference#Conference North|2015]]||[[Football Conference North]]
|-
|[[2004–05 Football Conference#Conference South|2004]]–[[2014–15 Football Conference#Conference South|2015]]||[[Football Conference South]]
|-
|[[2015–16 National League#National League North|2015]]–[[2022–23 National League#National League North|present]]||[[National League North]]
|-
|[[2015–16 National League#National League South|2015]]–[[2022–23 National League#National League South|present]]||[[National League South]]
|}

{| class="wikitable" style="text-align: center"
!Season
!Club
!Position
!Promoted to
|-
|[[1980–81 Isthmian League|1980–81]]||[[Enfield F.C.|Enfield]]<br />[[Dagenham F.C.|Dagenham]]||2nd<br />8th||[[1981–82 Alliance Premier League|Alliance Premier League]]<br />[[1981–82 Alliance Premier League|Alliance Premier League]]
|-
|[[1984–85 Isthmian League|1984–85]]||[[Wycombe Wanderers F.C.|Wycombe Wanderers]]||3rd||[[1985–86 Alliance Premier League|Alliance Premier League]]
|-
|[[1985–86 Isthmian League|1985–86]]||[[Sutton United F.C.|Sutton United]]||1st||[[1986–87 Football Conference|Football Conference]]
|-
|[[1986–87 Isthmian League|1986–87]]||[[Wycombe Wanderers F.C.|Wycombe Wanderers]]||1st||[[1987–88 Football Conference|Football Conference]]
|-
|[[1987–88 Isthmian League|1987–88]]||[[Yeovil Town F.C.|Yeovil Town]]||1st||[[1988–89 Football Conference|Football Conference]]
|-
|[[1988–89 Isthmian League|1988–89]]||[[Farnborough Town F.C.|Farnborough Town]]||2nd||[[1989–90 Football Conference|Football Conference]]
|-
|[[1989–90 Isthmian League|1989–90]]||[[Slough Town F.C.|Slough Town]]||1st||[[1990–91 Football Conference|Football Conference]]
|-
|[[1990–91 Isthmian League|1990–91]]||[[Redbridge Forest F.C.|Redbridge Forest]]||1st||[[1991–92 Football Conference|Football Conference]]
|-
|[[1991–92 Isthmian League|1991–92]]||[[Woking F.C.|Woking]]||1st||[[1992–93 Football Conference|Football Conference]]
|-
|[[1993–94 Isthmian League|1993–94]]||[[Stevenage Borough F.C.|Stevenage Borough]]||1st||[[1994–95 Football Conference|Football Conference]]
|-
|[[1994–95 Isthmian League|1994–95]]||[[Slough Town F.C.|Slough Town]]||2nd||[[1995–96 Football Conference|Football Conference]]
|-
|[[1995–96 Isthmian League|1995–96]]||[[Hayes F.C.|Hayes]]||1st||[[1996–97 Football Conference|Football Conference]]
|-
|[[1996–97 Isthmian League|1996–97]]||[[Yeovil Town F.C.|Yeovil Town]]||1st||[[1997–98 Football Conference|Football Conference]]
|-
|[[1997–98 Isthmian League|1997–98]]||[[Kingstonian F.C.|Kingstonian]]||1st||[[1998–99 Football Conference|Football Conference]]
|-
|[[1998–99 Isthmian League|1998–99]]||[[Sutton United F.C.|Sutton United]]||1st||[[1999–2000 Football Conference|Football Conference]]
|-
|[[1999–2000 Isthmian League|1999–2000]]||[[Dagenham & Redbridge F.C.|Dagenham & Redbridge]]||1st||[[2000–01 Football Conference|Football Conference]]
|-
|[[2000–01 Isthmian League|2000–01]]||[[Farnborough Town F.C.|Farnborough Town]]||1st||[[2001–02 Football Conference|Football Conference]]
|-
|[[2001–02 Isthmian League|2001–02]]||[[Ebbsfleet United F.C.|Gravesend & Northfleet]]||1st||[[2002–03 Football Conference|Football Conference]]
|-
|[[2002–03 Isthmian League|2002–03]]||[[Aldershot Town F.C.|Aldershot Town]]||1st||[[2003–04 Football Conference|Football Conference National]]
|-
|[[2003–04 Isthmian League|2003–04]]||[[Canvey Island F.C.|Canvey Island]]<br />[[Kettering Town F.C.|Kettering Town]]<br />[[Sutton United F.C.|Sutton United]]<br />[[Thurrock F.C.|Thurrock]]<br />[[Hornchurch F.C.|Hornchurch]]<br />[[Grays Athletic F.C.|Grays Athletic]]<br />[[Carshalton Athletic F.C.|Carshalton Athletic]]<br />[[Hayes F.C.|Hayes]]<br />[[Bognor Regis Town F.C.|Bognor Regis Town]]<br />[[Bishop's Stortford F.C.|Bishop's Stortford]]<br />[[Maidenhead United F.C.|Maidenhead United]]<br />[[Redbridge F.C.|Ford United]]<br />[[Basingstoke Town F.C.|Basingstoke Town]]<br />[[St Albans City F.C.|St Albans City]]<br />[[Lewes F.C.|Lewes]] ([[2003–04 Isthmian League#Division One South|IL DOS]])
||1st<br />9th<br />2nd<br />3rd<br />5th<br />6th<br />7th<br />8th<br />10th<br />11th<br />12th<br />13th<br />14th*<br />19th*<br />1st*||[[2004–05 Football Conference#Conference National|Football Conference National]]<br />[[2004–05 Football Conference#Conference North|Football Conference North]]<br />[[2004–05 Football Conference#Conference South|Football Conference South]]<br />[[2004–05 Football Conference#Conference South|Football Conference South]]<br />[[2004–05 Football Conference#Conference South|Football Conference South]]<br />[[2004–05 Football Conference#Conference South|Football Conference South]]<br />[[2004–05 Football Conference#Conference South|Football Conference South]]<br />[[2004–05 Football Conference#Conference South|Football Conference South]]<br />[[2004–05 Football Conference#Conference South|Football Conference South]]<br />[[2004–05 Football Conference#Conference South|Football Conference South]]<br />[[2004–05 Football Conference#Conference South|Football Conference South]]<br />[[2004–05 Football Conference#Conference South|Football Conference South]]<br />[[2004–05 Football Conference#Conference South|Football Conference South]]<br />[[2004–05 Football Conference#Conference South|Football Conference South]]<br />[[2004–05 Football Conference#Conference South|Football Conference South]]
|-
|[[2004–05 Isthmian League|2004–05]]||[[Yeading F.C.|Yeading]]<br />[[Eastleigh F.C.|Eastleigh]]||1st<br />3rd*||[[2005–06 Football Conference#Conference South|Football Conference South]]<br />[[2005–06 Football Conference#Conference South|Football Conference South]]
|-
|[[2005–06 Isthmian League|2005–06]]||[[Braintree Town F.C.|Braintree Town]]<br />[[Fisher Athletic F.C.|Fisher Athletic]]||1st<br />3rd*||[[2006–07 Football Conference#Conference South|Football Conference South]]<br />[[2006–07 Football Conference#Conference South|Football Conference South]]
|-
|[[2006–07 Isthmian League|2006–07]]||[[Hampton & Richmond Borough F.C.|Hampton & Richmond B]]<br />[[Bromley F.C.|Bromley]]||1st<br />2nd*||[[2007–08 Football Conference#Conference South|Football Conference South]]<br />[[2007–08 Football Conference#Conference South|Football Conference South]]
|-
|[[2007–08 Isthmian League|2007–08]]||[[Chelmsford City F.C.|Chelmsford City]]<br />[[AFC Wimbledon]]||1st<br />3rd*||[[2008–09 Football Conference#Conference South|Football Conference South]]<br />[[2008–09 Football Conference#Conference South|Football Conference South]]
|-
|[[2008–09 Isthmian League|2008–09]]||[[Dover Athletic F.C.|Dover Athletic]]<br />[[Staines Town F.C.|Staines Town]]||1st<br />2nd*||[[2009–10 Football Conference#Conference South|Football Conference South]]<br />[[2009–10 Football Conference#Conference South|Football Conference South]]
|-
|[[2009–10 Isthmian League|2009–10]]||[[Dartford F.C.|Dartford]]<br />[[Boreham Wood F.C.|Boreham Wood]]||1st<br />4th*||[[2010–11 Football Conference#Conference South|Football Conference South]]<br />[[2010–11 Football Conference#Conference South|Football Conference South]]
|-
|[[2010–11 Isthmian League|2010–11]]||[[Sutton United F.C.|Sutton United]]<br />[[Tonbridge Angels F.C.|Tonbridge Angels]]||1st<br />2nd*||[[2011–12 Football Conference#Conference South|Football Conference South]]<br />[[2011–12 Football Conference#Conference South|Football Conference South]]
|-
|[[2011–12 Isthmian League|2011–12]]||[[Billericay Town F.C.|Billericay Town]]<br />[[A.F.C. Hornchurch|AFC Hornchurch]]||1st<br />2nd*||[[2012–13 Football Conference#Conference South|Football Conference South]]<br />[[2012–13 Football Conference#Conference South|Football Conference South]]
|-
|[[2012–13 Isthmian League|2012–13]]||[[Whitehawk F.C.|Whitehawk]]<br />[[Concord Rangers F.C.|Concord Rangers]]||1st<br />4th*||[[2013–14 Football Conference#Conference South|Football Conference South]]<br />[[2013–14 Football Conference#Conference South|Football Conference South]]
|-
|[[2013–14 Isthmian League|2013–14]]||[[Wealdstone F.C.|Wealdstone]]<br />[[Lowestoft Town F.C.|Lowestoft Town]]||1st<br />4th*||[[2014–15 Football Conference#Conference South|Football Conference South]]<br />[[2014–15 Football Conference#Conference North|Football Conference North]]
|-
|[[2014–15 Isthmian League|2014–15]]||[[Maidstone United F.C.|Maidstone United]]<br />[[Margate F.C.|Margate]]||1st<br />3rd*||[[2015–16 National League#National League South|National League South]]<br />[[2015–16 National League#National League South|National League South]]
|-
|[[2015–16 Isthmian League|2015–16]]||[[Hampton & Richmond Borough F.C.|Hampton & Richmond B]]<br />[[East Thurrock United F.C.|East Thurrock United]]||1st<br />3rd*||[[2016–17 National League#National League South|National League South]]<br />[[2016–17 National League#National League South|National League South]]
|-
|[[2016–17 Isthmian League|2016–17]]||[[Havant & Waterlooville F.C.|Havant & Waterlooville]]<br />[[Bognor Regis Town F.C.|Bognor Regis Town]]||1st<br />2nd*||[[2017–18 National League#National League South|National League South]]<br />[[2017–18 National League#National League South|National League South]]
|-
|[[2017–18 Isthmian League|2017–18]]||[[Billericay Town F.C.|Billericay Town]]<br />[[Dulwich Hamlet F.C.|Dulwich Hamlet]]||1st<br />2nd*||[[2018–19 National League#National League South|National League South]]<br />[[2018–19 National League#National League South|National League South]]
|-
|[[2018–19 Isthmian League|2018–19]]||[[Dorking Wanderers F.C.|Dorking Wanderers]]<br />[[Tonbridge Angels F.C.|Tonbridge Angels]]||1st<br />4th*||[[2019–20 National League#National League South|National League South]]<br />[[2019–20 National League#National League South|National League South]]
|-
|[[2019–20 Isthmian League|2019–20]]||colspan=3|No promotion to National League North or South
|-
|[[2020–21 Isthmian League|2020–21]]||colspan=3|Step 3 promotion cancelled
|-
|[[2021–22 Isthmian League|2021–22]]||[[Worthing F.C.|Worthing]]<br />[[Cheshunt F.C.|Cheshunt]]||1st<br />5th*||[[2022–23 National League#National League South|National League South]]<br />[[2022–23 National League#National League South|National League South]]
|-
|[[2022–23 Isthmian League|2022–23]]||[[Bishop's Stortford F.C.|Bishop's Stortford]]<br>[[Aveley F.C.|Aveley]]||1st<br>4th*||[[2023–24 National League#National League North|National League North]]<br>[[2023–24 National League#National League South|National League South]]
|-
|[[2023–24 Isthmian League|2023–24]]||[[Hornchurch F.C.|Hornchurch]]<br>[[Enfield Town F.C.|Enfield Town]]||1st<br>3rd*||[[2024–25 National League#National League South|National League South]]<br>[[2024–25 National League#National League South|National League South]]
|-
|[[2024–25 Isthmian League|2024–25]]||[[Horsham F.C.|Horsham]]<br>[[Dover Athletic F.C.|Dover Athletic]]||1st<br>5th*||[[2025–26 National League#National League South|National League South]]<br>[[2025–26 National League#National League South|National League South]]
|}
Asterisk indicates club was promoted via play-offs

===Sponsorship===
The Isthmian League was the first league to have sponsorship, having been selected by [[Rothmans International|Rothmans]], who sponsored the league from 1973 to 1977. The company offered prize money for position in the league but money was deducted for [[Penalty card#Yellow card|bookings]]. Thus the money encouraged both more goals and fair play. The sponsors after Rothmans to the present day have been: Michael Lawrie (1977–78), Berger (1978–82), Servowarm (1982–85), [[Vauxhall Motors|Vauxhall]]-[[Opel]] (1985–90), [[Vauxhall Motors|Vauxhall]] (1990–91), [[Diadora]] (1991–95), ICIS (1995–97), [[Ryman]] (1997–2017),<ref>{{cite web |title=English Non-League Archive 1965–98 |url=http://www.staff.city.ac.uk/~sc397/football/nl/ |work=city.ac.uk |publisher=Rec.Sport.Soccer Statistics Foundation |access-date=14 May 2011}}</ref> [[Bostik]] (2017–19)<ref>{{cite web|title=Bostik signs sponsorship deal with the Isthmian Football League|url=https://www.bostik.com/UK/news/bostik-signs-sponsorship-deal-with-the-isthmian-football-league/|work=Bostik.com|date=2 July 2017|access-date=25 April 2018}}</ref> and [[BetVictor]] (2019–20). [[Entain]]'s Pitching In was announced as the next sponsor for 2020–21. At the time of announcement, Entain went by its former name GVC Holdings. Under this partnership, Isthmian is marketed as one of the three Trident Leagues, alongside the Northern Premier and Southern leagues.<ref>{{cite news |title=Introducing 'Pitching In' - the new partner of the Isthmian Football League |url=https://www.isthmian.co.uk/introducing-pitching-in-the-new-sponsor-of-the-ist-63351 |access-date=4 March 2021 |date=3 September 2020}}</ref>

Ryman also sponsored the Isthmian Youth League and Isthmian Development League upon their creations in 2007 and 2013 respectively.<ref>{{Cite web|url=http://www.isthmian.co.uk/record-breaking-ryman-era-to-end-34729|title=Record-breaking Ryman era to end – The Ryman Isthmian Football League|website=isthmian.co.uk|access-date=15 January 2017|date=14 January 2017}}</ref> Ryman chairman [[Theo Paphitis]] added to his league sponsorship through his flagship companies. [[Robert Dyas]] became sponsors of the Isthmian League Cup, Isthmian Veterans Cup, Isthmian Disability Cup and Isthmian Youth Play-off Cup in 2014, and Boux Avenue sponsored the Isthmian Women's Cup from 2014 to 2017.

Becoming the longest running sports sponsorship in UK football, Ryman stepped down as sponsors at the end of the 2016–17 season after 20 years.<ref>{{cite web |last1=Elliott |first1=Sam |title=End of the Ryman era as longest-running sponsors quit after 20 years |url=https://www.thenonleaguefootballpaper.com/latest-news/isthmian-league-step-three/18145/end-of-the-ryman-era-as-longest-running-sponsors-quit-after-20-years/ |website=The Non-League Football Paper |access-date=26 August 2020 |date=19 January 2017}}</ref>

==League Cup==
The [[Alan Turvey Trophy]], formerly the Isthmian League Cup, has run since 1975 and involves all Isthmian League teams.

== Former members ==
Several previous members of the Isthmian League have reached the [[English Football League]]. In its earlier years, the Football League didn't directly promote teams from the Non-League system on merit; instead, holding regular elections, for which any Non-League side could apply to enter. In practice, only the most ambitious non-League sides put themselves forward for election,<ref name=History>{{Cite web|url=http://www.nonleaguematters.co.uk/forum/gforum.cgi?do=post_attachment;postatt_id=3506|access-date=2 October 2021|website=Non League Matters|title=A HISTORY OF ADMISSION TO THE FOOTBALL LEAGUE}}</ref> and success was uncommon (outside of divisional expansions, from 1945 to its abolition in 1987, only seven clubs were successful in vying for admission to the League).  No Isthmian League member ever put themselves forward for election to the Football League, but [[Wimbledon F.C.|Wimbledon]] were elected as a Southern League member, having left the Isthmian League in 1964.<ref name=History/>

The first ex-Isthmian League team to reach the Football League was Wimbledon in 1977, followed subsequently by [[Maidstone United F.C. (1897)|Maidstone United]] (1989), [[Wycombe Wanderers F.C.|Wycombe Wanderers]] (1993), [[Yeovil Town F.C.|Yeovil Town]] (2003), [[Dagenham & Redbridge F.C.|Dagenham & Redbridge]] (2007), [[Aldershot Town F.C.|Aldershot Town]] (2008), [[Stevenage F.C.|Stevenage]] (2010), [[AFC Wimbledon]] (2011), and [[Sutton United F.C.|Sutton United]] (2021). [[Bromley F.C.|Bromley]] became the most recent former member to be promoted to the Football League, winning promotion in 2024.
{| class="wikitable" style=text-align:center
|+
!Team
!Isthmian League seasons
!Isthmian League Titles
!Highest division reached
!First season
!EFL Honours
!Major Cup Honours
!Current Division
|-
|[[AFC Wimbledon]]
|2004–08
|0
|[[EFL League One]]
|[[2011–12 Football League Two|2011–12]]
|''none''
|''none''
|[[EFL League One]]
|-
|[[Aldershot Town F.C.|Aldershot Town]]
|1992–2003
|1 (2002–03)
|[[EFL League Two]] 
|[[2008–09 Football League Two|2008–09]]
|''none''
|''none''
|[[National League (English football)|National League]] 
|-
|[[Bromley F.C.|Bromley]]
|1908–1919; 1952–2007
|4 (1908–09, 1909–10, 1953–54, 1960–61)
|[[EFL League Two]]
|[[2024–25 EFL League Two|2024–25]]
|''none''
|''none''
|[[EFL League Two]]
|-
|[[Dagenham & Redbridge F.C.|Dagenham & Redbridge]]
|1907–92; 1996–2000

* 1907–79 ''as [[Ilford F.C.|Ilford]]''
* 1908–79 ''as [[Leytonstone F.C.|Leytonstone]]''
* 1945–88 ''as [[Walthamstow Avenue F.C.|Walthamstow Avenue]]''
* 1973''-''81; 1988–92 ''as [[Dagenham F.C.|Dagenham]]''
* 1979–89 ''as [[Redbridge Forest F.C.|Leytonstone/Ilford]]''
* 1989–91 ''as [[Redbridge Forest F.C.|Redbridge Forest]]''
|19

* 1 as '''Dagenham & Redbridge''' (1999–2000)
* 3 as '''Ilford''' (1906–07, 1920–21, 1921–22)
* 9 as '''Leytonstone''' (1919, 1937–38, 1938–39, 1946–47, 1947–48, 1949–50, 1950–51, 1951–52, 1965–66)
* 3 as '''Walthamstow''' '''Avenue''' (1945–46, 1952–53, 1954–55)
* 2 as '''Leytonstone & Ilford''' (1981–82, 1988–89)
* 1 as '''Redbridge Forest''' (1990–91)
|[[EFL League One]]
|[[2007–08 Football League Two|2007-08]]
|''none''
|''none''
|[[National League South]] 
|-
|[[Maidstone United F.C. (1897)|Maidstone United]]
|1959–71
|0
|[[Football League Fourth Division|Fourth Division]]
|[[1989–90 Football League Fourth Division|1989–90]] 
|''none''
|''none''
|''defunct''
Successor club [[Maidstone United F.C.|Maidstone United]] currently play in the [[National League South]]
|-
|[[Stevenage F.C.|Stevenage]]
|1984–1994 ''as Stevenage Borough''
|1 (1993–94)
|[[EFL League One]]
|[[2010–11 Football League Two|2010–11]] 
|''none''
|''none''
|[[EFL League One]] 
|-
|[[Sutton United F.C.|Sutton United]]
|1963–86; 1991–99; 2001–04; 2008–11
|5 (1966–67, 1984–85, 1985–86, 1998–99, 2010–11)
|[[EFL League Two]] 
|[[2021–22 EFL League Two|2021–22]]
|''none''
|''none''
|[[National League (division)|National League]] 
|-
|[[Wimbledon F.C.|Wimbledon]]
|1921–64
|8 (1930–31, 1931–32, 1934–35, 1935–36, 1958–59, 1961–62, 1962–63, 1963–64)
|[[Premier League]]
|[[1977–78 Football League Fourth Division|1977–78]]
|[[Football League Second Division|Division 2]]

* [[1985–86 Football League Second Division|1985–86]]

[[Football League Third Division|Division 3]]

* [[1983–84 Football League Third Division|1983–84]]

[[Football League Fourth Division|Division 4]]

* [[1982–83 Football League Fourth Division|1982–83]]
|[[FA Cup]]

* [[1987–88 FA Cup|1987–88]]
|''defunct''
|-
|[[Wycombe Wanderers F.C.|Wycombe Wanderers]]
|1921–85; 1986–87
|8 (1955–56, 1956–57, 1970–71, 1971–72, 1973–74, 1974–75, 1982–83, 1986–87)
|[[EFL Championship]]
|[[1993–94 Football League Third Division|1993–94]]
|''none''
|''none''
|[[EFL League One]]
|-
|[[Yeovil Town F.C.|Yeovil Town]]
|1985–88; 1995–97
|2 (1987–88, 1996–97)
|[[EFL Championship]]
|[[2003-04 Football League Third Division|2003-04]]
|[[EFL League Two|League Two]]
* [[2004–05 Football League Two|2004–05]]
|''none''
|[[National League (English football)|National League]] 
|-
|}

==See also==
* [[Northern Premier League]]
* [[Southern Football League]]

==Footnotes==
{{Reflist}}

==References==
* {{cite web |title=The Ryman Football League |url=http://www.isthmian.co.uk/ |work=isthmian.co.uk |publisher=Ryman Football League |access-date=3 August 2009}}
* {{cite web |title=Isthmian League History |url=http://fchd.info/lghist/isth.htm |work=fchd.info |publisher=Football Club History Database |access-date=3 August 2009}}

{{Commons}}

==External links==
* [http://www.isthmian.co.uk/ Official website]

{{Isthmian League}}
{{Football in England table cells}}
{{Authority control}}

[[Category:Isthmian League| ]]
[[Category:1905 establishments in England]]
[[Category:Men's football leagues in England|7]]
[[Category:Sports leagues established in 1905]]
[[Category:Seventh-level football leagues in Europe|Eng]]
[[Category:Eighth-level football leagues in Europe|Eng]]