National Register of Historic Places listings in Ohio
Ohio has 4,295 properties, districts, sites, structures and objects on the National Register, listed between 1966 and 2026. Each page below links to the official nomination document, shows the location on a map and, where the nomination has been scanned, a plain-English summary of why it was listed. To check a specific address, use the address lookup.
By county
- Adams County (16)
- Allen County (31)
- Ashland County (20)
- Ashtabula County (41)
- Athens County (29)
- Auglaize County (23)
- Belmont County (27)
- Brown County (27)
- Butler County (94)
- Carroll County (11)
- Champaign County (35)
- Clark County (45)
- Clermont County (28)
- Clinton County (18)
- Columbiana County (45)
- Coshocton County (20)
- Crawford County (26)
- Cuyahoga County (456)
- Darke County (26)
- Defiance County (12)
- Delaware County (60)
- Erie County (181)
- Fairfield County (50)
- Fayette County (17)
- Franklin County (365)
- Fulton County (7)
- Gallia County (9)
- Geauga County (18)
- Greene County (49)
- Guernsey County (22)
- Hamilton County (408)
- Hancock County (14)
- Hardin County (7)
- Harrison County (7)
- Henry County (4)
- Highland County (28)
- Hocking County (13)
- Holmes County (16)
- Huron County (18)
- Jackson County (14)
- Jefferson County (26)
- Knox County (45)
- Lake County (83)
- Lawrence County (21)
- Licking County (66)
- Logan County (10)
- Lorain County (124)
- Lucas County (104)
- Madison County (11)
- Mahoning County (78)
- Marion County (20)
- Medina County (33)
- Meigs County (10)
- Mercer County (30)
- Miami County (47)
- Monroe County (11)
- Montgomery County (164)
- Morgan County (6)
- Morrow County (15)
- Muskingum County (84)
- Noble County (11)
- Ottawa County (32)
- Paulding County (5)
- Perry County (15)
- Pickaway County (33)
- Pike County (8)
- Portage County (52)
- Preble County (20)
- Putnam County (10)
- Richland County (71)
- Ross County (45)
- Sandusky County (12)
- Scioto County (44)
- Seneca County (46)
- Shelby County (19)
- Stark County (92)
- Summit County (189)
- Trumbull County (42)
- Tuscarawas County (27)
- Union County (11)
- Van Wert County (8)
- Vinton County (11)
- Warren County (54)
- Washington County (39)
- Wayne County (24)
- Williams County (7)
- Wood County (33)
- Wyandot County (10)
Listings per decade
Source: NPS National Register database. Most listings date from the 1970s–80s survey boom.
State Historic Preservation Office
Ohio State Historic Preservation Office handles nominations and tax-credit certifications. State tax credits · How to nominate.
Most notable listings in Ohio
Adena (Thomas Worthington House) NHL Chillicothe, Ross County · Building · listed 1970
Beginning Point of the U.S. Public Land Survey NHL East Liverpool, Columbiana County · Site · listed 1966
Carew Tower NHL Cincinnati, Hamilton County · Building · listed 1982
Central Branch, National Home for Disabled Volunteer Soldiers NHL Dayton, Montgomery County · District · listed 2004
Cincinnati Music Hall NHL Cincinnati, Hamilton County · Building · listed 1970
Cincinnati Observatory Building NHL Cincinnati, Hamilton County · Building · listed 1980
Cincinnati Union Terminal NHL Cincinnati, Hamilton County · Building · listed 1972
Cincinnati Zoo Historic Structures NHL Cincinnati, Hamilton County · Building · listed 1987
Cleveland Arcade NHL Cleveland, Cuyahoga County · Building · listed 1973
Cooke, Jay, House NHL Gibraltar Island, Ottawa County · Building · listed 1966
Dunbar, Paul Laurence, House NHL Dayton, Montgomery County · Building · listed 1966
Edison, Thomas Alva, Birthplace NHL Milan, Erie County · Building · listed 1966 Notable historic districts
- Central Branch, National Home for Disabled Volunteer Soldiers — Dayton
- Glendale Historic District — Glendale
- Mount Pleasant Historic District — Mt. Pleasant
- Spring Grove Cemetery — Cincinnati
- Village of Mariemont — Mariemont
- Glendale Historic District (Boundary Increase and Decrease) — Glendale
- Ohio and Erie Canal — Valley View
- Greenhills Historic District — Greenhills
- Greenhills Historic District — Greenhills
- Zoar Historic District — Zoar
- Alliance Clay Product Company — Alliance
- Ambler Heights Historic District — Cleveland Heights
Guides for owners and visitors
Data: NPS National Register database (snapshot May 2026), NPS cultural-resource GIS, National Archives, Wikidata and Wikimedia Commons. Details and licences.