National Register of Historic Places listings in Ohio

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This is a list of properties and districts in Ohio that are listed on the National Register of Historic Places. There are over 4,000 in total. Of these, 73 are National Historic Landmarks. There are listings in each of Ohio's 88 counties.

The locations of National Register properties and districts (at least for all showing latitude and longitude coordinates below), may be seen in an online map by clicking on "Map of all coordinates".Template:Efn

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Current listings by county

The following are approximate tallies of current listings by county. These counts are based on entries in the National Register Information Database as of April 24, 2008^[1] and new weekly listings posted since then on the National Register of Historic Places web site.^[2] There are frequent additions to the listings and occasional delistings and the counts here are approximate and not official. New entries are added to the official Register on a weekly basis.^[3] Also, the counts in this table exclude boundary increase and decrease listings which modify the area covered by an existing property or district and which carry a separate National Register reference number.

File:Ohio Statehouse columbus.jpg

Ohio Statehouse, in Franklin County

File:Mac-O-Chee–Mac-A-Cheek montage.jpg

Abram S. Piatt House and Donn S. Piatt House, in Logan County

File:ClevelandMall.jpg

Cleveland Mall, in Cuyahoga County

File:Farnsworth Metropark.jpg

Interurban Bridge, in Wood County

File:FPConservatory.jpg

Franklin Park Conservatory, in Franklin County

File:Glenford Bank.jpg

Glenford Bank, in Perry County

File:Monroe Bank.jpg

Monroe Bank, in Monroe County

style="background-color:Template:Designation/color"\|	style="background-color:Template:Designation/color"\| County	style="background-color:Template:Designation/color"\| # of Sites
1	Adams	16
2	Allen	31
3	Ashland	19
4	Ashtabula	41
5	Athens	29
6	Auglaize	24
7	Belmont	28
8	Brown	26
9	Butler	93
10	Carroll	12
11	Champaign	35
12	Clark	42
13	Clermont	28
14	Clinton	18
15	Columbiana	45
16	Coshocton	20
17	Crawford	26
18.1	Cuyahoga: Cleveland	279
18.2	Cuyahoga: Other	164
18.3	Cuyahoga: Duplicates	4Template:Efn
18.4	Cuyahoga: Total	439
19	Darke	26
20	Defiance	12
21	Delaware	60
22.1	Erie: Sandusky	114
22.2	Erie: Other	65
22.3	Erie: Total	179
23	Fairfield	50
24	Fayette	17
25.1	Franklin: Columbus	182
25.2	Franklin: Other	177
25.3	Franklin: Total	359
26	Fulton	7
27	Gallia	8
28	Geauga	18
29	Greene	46
30	Guernsey	22
31.1a	Hamilton: Cincinnati: Downtown	62
31.1b	Hamilton: Cincinnati: East	135
31.1c	Hamilton: Cincinnati: West	97
31.1d	Hamilton: Cincinnati: Duplicates	(1)Template:Efn
31.1e	Hamilton: Cincinnati: Total	293
31.2	Hamilton: Other	99
31.3	Hamilton: Total	392
32	Hancock	14
33	Hardin	7
34	Harrison	7
35	Henry	4
36	Highland	28
37	Hocking	14
38	Holmes	16
39	Huron	18
40	Jackson	14
41	Jefferson	25
42	Knox	45
43	Lake	81
44	Lawrence	20
45	Licking	65
46	Logan	10
47	Lorain	124
48	Lucas	101
49	Madison	11
50	Mahoning	75
51	Marion	19
52	Medina	33
53	Meigs	9
54	Mercer	30
55	Miami	45
56	Monroe	11
57.1	Montgomery: Dayton	116
57.2	Montgomery: Other	44
57.2	Montgomery: Duplicates	(1)Template:Efn
57.4	Montgomery: Total	159
58	Morgan	6
59	Morrow	15
60	Muskingum	84
61	Noble	11
62	Ottawa	31
63	Paulding	5
64	Perry	14
65	Pickaway	33
66	Pike	8
67	Portage	49
68	Preble	20
69	Putnam	10
70	Richland	70
71	Ross	45
72	Sandusky	12
73	Scioto	42
74	Seneca	45
75	Shelby	20
76	Stark	91
77.1	Summit: Akron	63
77.2	Summit: Other	125
77.3	Summit: Duplicates	1Template:Efn
77.4	Summit: Total	187
78	Trumbull	39
79	Tuscarawas	25
80	Union	11
81	Van Wert	8
82	Vinton	11
83	Warren	54
84	Washington	37
85	Wayne	21
86	Williams	7
87	Wood	33
88	Wyandot	10
(duplicates)		(21)Template:Efn
Total:		4,184