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". __NOTOC__
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 and new weekly listings posted since then on the National Register of Historic Places web site. 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.Weekly List Actions, National Register of Historic Places website 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.
County # of Sites 1 Adams 16 2 Allen 31 3 Ashland 19 4 Ashtabula 41 5 Athens 29 6 Auglaize 24 7 Belmont 29 8 Brown 26 9 Butler 93 10 Carroll 12 11 Champaign 35 12 Clark 43 13 Clermont 28 14 Clinton 18 15 Columbiana 45 16 Coshocton 20 17 Crawford 26 18.1 Cuyahoga: Cleveland 284 18.2 Cuyahoga: Other 166 18.3 Cuyahoga: Duplicates 4 18.4 Cuyahoga: Total 446 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 185 25.2 Franklin: Other 177 25.3 Franklin: Total 362 26 Fulton 7 27 Gallia 8 28 Geauga 18 29 Greene 47 30 Guernsey 22 31.1a Hamilton: Cincinnati: Downtown 62 31.1b Hamilton: Cincinnati: East 137 31.1c Hamilton: Cincinnati: West 99 31.1d Hamilton: Cincinnati: Duplicates (1) 31.1e Hamilton: Cincinnati: Total 298 31.2 Hamilton: Other 100 31.3 Hamilton: Total 398 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 26 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 47 56 Monroe 11 57.1 Montgomery: Dayton 118 57.2 Montgomery: Other 44 57.2 Montgomery: Duplicates (1) 57.4 Montgomery: Total 161 58 Morgan 6 59 Morrow 15 60 Muskingum 84 61 Noble 11 62 Ottawa 31 63 Paulding 5 64 Perry 15 65 Pickaway 33 66 Pike 8 67 Portage 50 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 64 77.2 Summit: Other 125 77.3 Summit: Duplicates 1 77.4 Summit: Total 188 78 Trumbull 40 79 Tuscarawas 26 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) Total: 4,213
See also List of National Historic Landmarks in Ohio List of bridges on the National Register of Historic Places in Ohio List of historical societies in Ohio
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