Delaware County, Iowa: Difference between revisions

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{{Use American English|date=December 2022}}
{{Use American English|date=December 2022}}
{{Infobox U.S. county
{{Infobox U.S. county
  | county               = Delaware County
  | county             = Delaware County
  | state               = Iowa
  | state             = Iowa
  | ex image             = Delaware County Courthouse.jpg
  | ex image           = Delaware County Courthouse.jpg
  | ex image size       = 240px
  | ex image size     = 250px
  | ex image cap         = [[Delaware County Courthouse (Iowa)|Delaware County Courthouse]]
  | ex image cap       = The [[Delaware County Courthouse (Iowa)|Delaware County Courthouse]] in Manchester
  | seal                 =  
  | seal               =  
  | founded year        = 1837
  | founded           = December 21, 1837 (created)<br>February 8, 1844 (organized)<ref>{{cite web|title=Iowa: Individual County Chronologies |url=https://publications.newberry.org/ahcb/documents/IA_Individual_County_Chronologies.htm |website=publications.newberry.org |publisher=The [[Newberry Library]] |date=2007 |access-date=December 28, 2025}}</ref>
| founded date         =  
  | seat wl           = Manchester
  | seat wl             = Manchester
  | largest city wl   = Manchester
  | largest city wl     = Manchester
  | area_total_sq_mi   = 579
  | area_total_sq_mi     = 579
  | area_land_sq_mi   = 578
  | area_land_sq_mi     = 578
  | area_water_sq_mi   = 1.2
  | area_water_sq_mi     = 1.2
  | area percentage   = 0.2
  | area percentage     = 0.2
  | population_as_of   = 2020
  | population_as_of     = 2020
  | population_total   = 17488
  | population_total    = 17488
| pop_est_as_of      = 2024
  | population_density_sq_mi = auto
| population_est     = 17609 {{increase}}
  | time zone           = Central
  | density_sq_mi      = auto
| footnotes            =
  | time zone         = Central
  | web                 = https://delawarecounty.iowa.gov/
  | web               = https://delawarecounty.iowa.gov/
  | district             = 2nd
  | district           = 2nd
  | named for           = State of [[Delaware]]
  | named for         = State of [[Delaware]]
| footnotes          = * Iowa county number '''28'''<ref>{{cite web|title=Iowa County Names and Numbers |url=https://das.iowa.gov/media/3516/download?inline |publisher=Iowa Department of Administrative Services |access-date=December 28, 2025}}</ref>
}}
}}


'''Delaware County''' is a [[County (United States)|county]] located in the [[U.S. state]] of [[Iowa]]. As of the [[2020 United States census|2020 census]], the population was 17,488.<ref name=cen2020>{{cite web |title=2020 Census State Redistricting Data |url=https://www2.census.gov/programs-surveys/decennial/2020/data/01-Redistricting_File--PL_94-171/Iowa/ |website=census.gov |publisher=United states Census Bureau |access-date=August 12, 2021}}</ref> The [[county seat]] is [[Manchester, Iowa|Manchester]].<ref name="GR6">{{cite web|url=http://www.naco.org/Counties/Pages/FindACounty.aspx |access-date=June 7, 2011 |title=Find a County |publisher=National Association of Counties |url-status=dead |archive-url=https://web.archive.org/web/20110531210815/http://www.naco.org/Counties/Pages/FindACounty.aspx |archive-date=May 31, 2011 }}</ref> The county takes its name after the U.S. state of [[Delaware]].
'''Delaware County''' is a [[County (United States)|county]] located in the [[U.S. state]] of [[Iowa]]. As of the [[2020 United States census|2020 census]], the population was 17,488.<ref name=cen2020>{{cite web |title=2020 Census State Redistricting Data |url=https://www2.census.gov/programs-surveys/decennial/2020/data/01-Redistricting_File--PL_94-171/Iowa/ |website=census.gov |publisher=United states Census Bureau |access-date=August 12, 2021}}</ref> The [[county seat]] is [[Manchester, Iowa|Manchester]].<ref name="NACo">{{cite web|title=Find a County |url=https://ce.naco.org/?find=true |publisher=[[National Association of Counties]] |access-date=December 28, 2025}}</ref> The county takes its name after the U.S. state of [[Delaware]].


==Geography==
==Geography==
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|2010= 17764
|2010= 17764
|2020= 17488
|2020= 17488
|estyear=2023
|estyear=2024
|estimate=17600
|estimate=17609
|estref=<ref name="USCensusEst2023">{{cite web|url=https://www.census.gov/programs-surveys/popest/data/tables.html|title=Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2023|publisher=United States Census Bureau|access-date=April 2, 2024}}</ref>
|estref=<ref name="USCensusEst2024">{{cite web|title=County Population Totals and Components of Change: 2020-2024 |url=https://www.census.gov/data/tables/time-series/demo/popest/2020s-counties-total.html |access-date=July 24, 2025}}</ref>
|align-fn=center
|align-fn=center
|footnote=U.S. Decennial Census<ref>{{cite web|url=https://www.census.gov/programs-surveys/decennial-census.html|title=U.S. Decennial Census|publisher=United States Census Bureau|access-date=July 16, 2014}}</ref><br />1790-1960<ref>{{cite web|url=http://mapserver.lib.virginia.edu|title=Historical Census Browser|publisher=University of Virginia Library|access-date=July 16, 2014}}</ref> 1900-1990<ref>{{cite web|url=https://www.census.gov/population/cencounts/ia190090.txt|title=Population of Counties by Decennial Census: 1900 to 1990|publisher=United States Census Bureau|access-date=July 16, 2014}}</ref><br />1990-2000<ref>{{cite web|url=https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |archive-url=https://web.archive.org/web/20100327165705/http://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |archive-date=March 27, 2010 |url-status=live|title=Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000|publisher=United States Census Bureau|access-date=July 16, 2014}}</ref> 2010-2018<ref name="QF">{{cite web|title=State & County QuickFacts|url=http://quickfacts.census.gov/qfd/states/19/19055.html|publisher=United States Census Bureau|access-date=July 16, 2014|url-status=dead|archive-url=https://web.archive.org/web/20110607065137/http://quickfacts.census.gov/qfd/states/19/19055.html|archive-date=June 7, 2011}}</ref>  
|footnote=U.S. Decennial Census<ref>{{cite web|title=U.S. Decennial Census |url=https://www.census.gov/programs-surveys/decennial-census.html |publisher=United States Census Bureau |access-date=January 7, 2014}}</ref><br>1790–1960<ref>{{cite web|title=Historical Census Browser |url=http://mapserver.lib.virginia.edu |publisher=University of Virginia Library |url-status=live |date=2007 |access-date=January 7, 2014 |archive-url=https://web.archive.org/web/20091212224028/http://mapserver.lib.virginia.edu/ |archive-date=December 12, 2009}}</ref> 1900–1990<ref>{{cite web|last=Forstall |first=Richard L. |title=Population of Counties by Decennial Census: 1900 to 1990 |url=https://www.census.gov/population/cencounts/ia190090.txt |publisher=United States Census Bureau |url-status=live |date=April 20, 1995 |access-date=January 7, 2014 |archive-url=https://web.archive.org/web/19990219135447/http://www.census.gov/population/cencounts/ia190090.txt |archive-date=February 19, 1999}}</ref><br>1990–2000<ref>{{cite web|title=Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000 |url=https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |url-status=live |publisher=United States Census Bureau |access-date=January 7, 2014 |archive-url=https://web.archive.org/web/20100327165705/http://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |archive-date=March 27, 2010}}</ref> 2010–2020<ref name="QF">{{Cite web|title=U.S. Census Bureau QuickFacts: Delaware County, Iowa |url=https://www.census.gov/quickfacts/fact/table/delawarecountyiowa/PST045224 |access-date=December 28, 2025 |website=www.census.gov |language=en}}</ref>
}}
}}
[[File:DelawareCountyIowaPop2020.png|thumb|right|Population of Delaware County from US census data]]
[[File:DelawareCountyIowaPop2020.png|thumb|right|Population of Delaware County from US census data]]
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===2020 census===
===2020 census===
[[File:DelawareCountyIA2022PopPyr.png|thumb|left|2022 US Census [[population pyramid]] for Delaware County from [[American Community Survey|ACS]] 5-year estimates]]
[[File:DelawareCountyIA2022PopPyr.png|thumb|left|2022 US Census [[population pyramid]] for Delaware County from [[American Community Survey|ACS]] 5-year estimates]]
The 2020 census recorded a population of 17,488 in the county, with a population density of {{Pop density|17488|579.152815|sqmi|km2}}. 97.75% of the population reported being of one race. 94.60% were non-Hispanic White, 0.70% were Black, 1.40% were Hispanic, 0.29% were Native American, 0.27% were Asian, 0.01% were Native Hawaiian or Pacific Islander and 2.74% were some other race or more than one race. There were 8,100 housing units of which 7,141 were occupied.<ref name=cen2020/>
As of the [[2020 United States census|2020 census]], the county had a population of 17,488, resulting in a population density of {{Pop density|17488|579.152815|sqmi|km2|prec=1}}.<ref name="Census2020DP">{{cite web|title=2020 Decennial Census Demographic Profile (DP1)|url=https://api.census.gov/data/2020/dec/dp?get=NAME,DP1_0021P,DP1_0024P,DP1_0025C,DP1_0049C,DP1_0045C,DP1_0069C,DP1_0073C,DP1_0125P,DP1_0126P,DP1_0129P,DP1_0133P,DP1_0137P,DP1_0138P,DP1_0139P,DP1_0141P,DP1_0142P,DP1_0143P,DP1_0145P,DP1_0146P,DP1_0147C,DP1_0148C,DP1_0149C,DP1_0156C,DP1_0157C,DP1_0158C,DP1_0159P,DP1_0160P&for=county%3A055&in=state%3A19|website=United States Census Bureau|year=2021|access-date=December 25, 2025|df=mdy}}</ref>
 
As of the [[2020 United States census|2020 census]], the median age was 43.5 years. 23.6% of residents were under the age of 18 and 20.5% of residents were 65 years of age or older. For every 100 females there were 101.8 males, and for every 100 females age 18 and over there were 99.6 males age 18 and over.<ref name="Census2020DP"/>
 
As of the [[2020 United States census|2020 census]], the racial makeup of the county was 96.0% [[White Americans|White]], 0.7% [[African Americans|Black or African American]], 0.3% [[Native Americans in the United States|American Indian and Alaska Native]], 0.3% [[Asian Americans|Asian]], <0.1% [[Native Hawaiians|Native Hawaiian]] and [[Pacific Islander|Pacific Islander]], 0.5% from some other race, and 2.3% from [[Multiracial Americans|two or more races]]; [[Hispanic and Latino Americans|Hispanic or Latino]] residents of any race comprised 1.4% of the population.<ref name="Census2020PL">{{cite web|title=2020 Decennial Census Redistricting Data (Public Law 94-171)|url=https://api.census.gov/data/2020/dec/pl?get=NAME,P1_001N,P1_003N,P1_004N,P1_005N,P1_006N,P1_007N,P1_008N,P1_009N,P2_001N,P2_002N,H1_001N,H1_002N&for=county%3A055&in=state%3A19|website=United States Census Bureau|year=2021|access-date=December 25, 2025|df=mdy}}</ref>
97.75% of residents reported being of one race, including 94.60% who were non-Hispanic White and 0.70% who were Black or African American, while 2.74% reported being some other race or more than one race.<ref name="Census2020PL"/>
 
As of the [[2020 United States census|2020 census]], 28.1% of residents lived in urban areas, while 71.9% lived in rural areas.<ref name="Census2020DHC">{{cite web|title=2020 Decennial Census Demographic and Housing Characteristics (DHC)|url=https://api.census.gov/data/2020/dec/dhc?get=NAME,P2_002N,P2_003N&for=county%3A055&in=state%3A19|website=United States Census Bureau|year=2023|access-date=December 25, 2025|df=mdy}}</ref>
 
As of the [[2020 United States census|2020 census]], there were 7,141 households in the county, of which 27.8% had children under the age of 18 living in them. Of all households, 57.4% were married-couple households, 17.8% were households with a male householder and no spouse or partner present, and 19.7% were households with a female householder and no spouse or partner present. About 27.5% of all households were made up of individuals and 13.0% had someone living alone who was 65 years of age or older. There were 8,100 housing units, of which 11.8% were vacant, leaving 7,141 occupied units; among the occupied units, 80.2% were owner-occupied and 19.8% were renter-occupied. The homeowner vacancy rate was 1.6% and the rental vacancy rate was 6.8%.<ref name="Census2020DP"/>


===2010 census===
===2010 census===
The 2010 census recorded a population of 17,764 in the county, with a population density of {{Pop density|17764|577.85|sqmi|km2}}. There were 8,028 housing units, of which 7,062 were occupied.<ref name="USCB">{{cite web|url=https://www2.census.gov/library/publications/decennial/2010/cph-2/cph-2-17.pdf |archive-url=https://web.archive.org/web/20201016010401/https://www2.census.gov/library/publications/decennial/2010/cph-2/cph-2-17.pdf |archive-date=October 16, 2020 |url-status=live|title=Population & Housing Occupancy Status 2010|publisher=[[United States Census Bureau]] American FactFinder|access-date=August 15, 2022}}</ref>
The 2010 census recorded a population of 17,764 in the county, with a population density of {{Pop density|17764|577.85|sqmi|km2|prec=1}}. There were 8,028 housing units, of which 7,062 were occupied.<ref name="USCB">{{cite web|url=https://www2.census.gov/library/publications/decennial/2010/cph-2/cph-2-17.pdf |archive-url=https://web.archive.org/web/20201016010401/https://www2.census.gov/library/publications/decennial/2010/cph-2/cph-2-17.pdf |archive-date=October 16, 2020 |url-status=live|title=Population & Housing Occupancy Status 2010|publisher=[[United States Census Bureau]] American FactFinder|access-date=August 15, 2022}}</ref>


===2000 census===
===2000 census===
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==Communities==
==Communities==
===Cities===
===Cities===
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!Municipal type
!Municipal type
!Population (2020 Census)
!Population (2020 Census)
|- style="background-color:#FFFACD;"
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| 1

Latest revision as of 22:00, 28 December 2025

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Delaware County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 17,488.[1] The county seat is Manchester.[2] The county takes its name after the U.S. state of Delaware.

Geography

File:The Tony Dunlap Farm.jpg
A farm near Hopkinton

According to the U.S. Census Bureau, the county has a total area of Script error: No such module "convert"., of which Script error: No such module "convert". is land and Script error: No such module "convert". (0.2%) is water.[3] It has a rough hilly surface.[4]

Major highways

Adjacent counties

Demographics

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Historical population
CensusPop.Template:Sronly
18501,759
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202017,488Script error: No such module "String".%
2024 (est.)17,609[5]Script error: No such module "String".%
U.S. Decennial Census[6]
1790–1960[7] 1900–1990[8]
1990–2000[9] 2010–2020[10]

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File:DelawareCountyIowaPop2020.png
Population of Delaware County from US census data

2020 census

File:DelawareCountyIA2022PopPyr.png
2022 US Census population pyramid for Delaware County from ACS 5-year estimates

As of the 2020 census, the county had a population of 17,488, resulting in a population density of Template:Pop density.[11]

As of the 2020 census, the median age was 43.5 years. 23.6% of residents were under the age of 18 and 20.5% of residents were 65 years of age or older. For every 100 females there were 101.8 males, and for every 100 females age 18 and over there were 99.6 males age 18 and over.[11]

As of the 2020 census, the racial makeup of the county was 96.0% White, 0.7% Black or African American, 0.3% American Indian and Alaska Native, 0.3% Asian, <0.1% Native Hawaiian and Pacific Islander, 0.5% from some other race, and 2.3% from two or more races; Hispanic or Latino residents of any race comprised 1.4% of the population.[12] 97.75% of residents reported being of one race, including 94.60% who were non-Hispanic White and 0.70% who were Black or African American, while 2.74% reported being some other race or more than one race.[12]

As of the 2020 census, 28.1% of residents lived in urban areas, while 71.9% lived in rural areas.[13]

As of the 2020 census, there were 7,141 households in the county, of which 27.8% had children under the age of 18 living in them. Of all households, 57.4% were married-couple households, 17.8% were households with a male householder and no spouse or partner present, and 19.7% were households with a female householder and no spouse or partner present. About 27.5% of all households were made up of individuals and 13.0% had someone living alone who was 65 years of age or older. There were 8,100 housing units, of which 11.8% were vacant, leaving 7,141 occupied units; among the occupied units, 80.2% were owner-occupied and 19.8% were renter-occupied. The homeowner vacancy rate was 1.6% and the rental vacancy rate was 6.8%.[11]

2010 census

The 2010 census recorded a population of 17,764 in the county, with a population density of Template:Pop density. There were 8,028 housing units, of which 7,062 were occupied.[14]

2000 census

As of the census[15] of 2000, there were 18,404 people, 6,834 households, and 5,029 families residing in the county. The population density was Script error: No such module "convert".. There were 7,682 housing units at an average density of Script error: No such module "convert".. The racial makeup of the county was 99.28% White, 0.07% Black or African American, 0.10% Native American, 0.14% Asian, 0.01% Pacific Islander, 0.10% from other races, and 0.30% from two or more races. 0.66% of the population were Hispanic or Latino of any race.

There were 6,834 households, out of which 36.70% had children under the age of 18 living with them, 64.10% were married couples living together, 6.20% had a female householder with no husband present, and 26.40% were non-families. 23.00% of all households were made up of individuals, and 11.20% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.15.

In the county, the population was spread out, with 29.00% under the age of 18, 7.00% from 18 to 24, 27.60% from 25 to 44, 21.50% from 45 to 64, and 15.00% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 98.40 males. For every 100 females age 18 and over, there were 96.60 males.

The median income for a household in the county was $37,168, and the median income for a family was $43,607. Males had a median income of $30,712 versus $19,685 for females. The per capita income for the county was $17,327. About 6.30% of families and 7.90% of the population were below the poverty line, including 8.50% of those under age 18 and 9.80% of those age 65 or over.

Communities

Cities

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Townships

Delaware County is divided into these townships:

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Unincorporated communities

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Population ranking

The population ranking of the following table is based on the 2020 census of Delaware County.[1]

county seat

Rank City/Town/etc. Municipal type Population (2020 Census)
1 Manchester City 5,065
2 Dyersville (mostly in Dubuque County) City 4,477
3 Edgewood (partially in Clayton County) City 909
4 Earlville City 716
5 Hopkinton City 622
6 Delhi City 420
7 Colesburg City 386
8 Ryan City 350
9 Greeley City 217
10 Dundee City 198
11 Delaware City 142
12 Masonville City 99

Politics

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See also

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References

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External links

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Template:Geographic Location

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