Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Henrietta Church | Church | 238 | Lorain | 41 20 10 N | 082 19 48 W |
| Henrietta Methodist Cemetery | Cemetery | 236 | Lorain | 41 20 11 N | 082 19 44 W |
| Henrietta Post Office (historical) | Post Office | 259 | Lorain | 41 20 30 N | 082 18 05 W |
| Henrietta United Church of Christ | Church | 247 | Lorain | 41 19 12 N | 082 20 31 W |
| Henritze Park | Park | | Cuyahoga | 41 26 21 N | 081 42 31 W |
| Henry | Populated Place | 250 | Cuyahoga | 41 25 51 N | 081 35 56 W |
| Henry Beachy Farm Cemetery | Cemetery | 339 | Holmes | 40 31 26 N | 081 42 41 W |
| Henry Bridge | Bridge | 212 | Washington | 39 23 00 N | 081 47 06 W |
| Henry Cemetery | Cemetery | 300 | Geauga | 41 21 17 N | 081 21 33 W |
| Henry Cemetery | Cemetery | 198 | Pike | 39 02 22 N | 083 10 10 W |
| Henry Cemetery | Cemetery | 335 | Stark | 40 51 36 N | 081 19 59 W |
| Henry Cemetery | Cemetery | 249 | Washington | 39 29 26 N | 081 36 48 W |
| Henry County | Civil | 207 | Henry | 41 21 00 N | 084 06 00 W |
| Henry County Airport | Airport | 207 | Henry | 41 22 27 N | 084 04 05 W |
| Henry County Courthouse | Building | 207 | Henry | 41 23 27 N | 084 07 28 W |
| Henry County Fairground | Locale | 204 | Henry | 41 22 46 N | 084 07 26 W |
| Henry County Home | Building | 209 | Henry | 41 25 33 N | 084 08 60 W |
| Henry County Jail | Building | 207 | Henry | 41 23 28 N | 084 07 26 W |
| Henry Creek | Stream | | Wood | 41 33 54 N | 083 25 50 W |
| Henry Ditch | Canal | 231 | Seneca | 41 09 06 N | 083 20 37 W |
| Henry Hall | Building | 384 | Portage | 41 18 47 N | 081 08 41 W |
| Henry Hershberger Farm Cemetery | Cemetery | 391 | Holmes | 40 35 57 N | 081 47 12 W |
| Henry Hollow | Valley | | Morgan | 39 33 05 N | 081 46 53 W |
| Henry Saint Clair Memorial Building | Building | 320 | Darke | 40 05 56 N | 084 37 60 W |
| Henry School | School | 318 | Summit | 41 04 56 N | 081 30 01 W |
| Henry Township House | Building | 224 | Wood | 41 11 25 N | 083 40 54 W |
| Henrys Cemetery | Cemetery | 202 | Athens | 39 24 02 N | 081 57 07 W |
| Hensel Cemetery | Cemetery | | Monroe | 39 35 31 N | 081 05 12 W |
| Henthorn Cemetery | Cemetery | 304 | Monroe | 39 38 31 N | 081 11 57 W |
| Hepburn | Populated Place | 290 | Hardin | 40 37 17 N | 083 28 11 W |
| Hepburn Hall | Building | 265 | Butler | 39 30 52 N | 084 43 60 W |
| Hepburn Post Office (historical) | Post Office | 289 | Hardin | 40 37 15 N | 083 28 10 W |
| Hepker Cemetery | Cemetery | 264 | Williams | 41 30 49 N | 084 40 15 W |
| Hepp Ditch | Canal | 232 | Seneca | 41 06 40 N | 083 16 04 W |
| Herberich Intermediate School | School | 308 | Summit | 41 08 13 N | 081 36 18 W |
| Herbert Corners | Populated Place | 358 | Mahoning | 41 02 39 N | 080 45 38 W |
| Herbert H Mills Elementary School | School | 273 | Franklin | 39 56 57 N | 082 48 53 W |
| Herbert Wescoat Memorial Library | Building | 233 | Vinton | 39 14 47 N | 082 28 48 W |
| Herbruck Park | Park | 322 | Stark | 40 49 25 N | 081 20 23 W |
| Herefork | Populated Place | 321 | Ashland | 41 03 38 N | 082 23 41 W |
| Hering Cemetery | Cemetery | 285 | Greene | 39 43 53 N | 084 01 17 W |
| Heritage Baptist School | School | 262 | Hamilton | 39 12 30 N | 084 23 41 W |
| Heritage Cemetery | Cemetery | 272 | Williams | 41 37 16 N | 084 39 41 W |
| Heritage Christian School | School | 244 | Butler | 39 30 34 N | 084 20 38 W |
| Heritage Elementary School | School | 331 | Medina | 41 07 28 N | 081 50 59 W |
| Heritage Freewill Baptist Church | Church | 197 | Butler | 39 24 38 N | 084 34 51 W |
| Heritage Hall | Building | 244 | Cuyahoga | 41 22 10 N | 081 50 47 W |
| Heritage Hall | Building | 360 | Stark | 40 49 37 N | 081 22 35 W |
| Heritage Hill Elementary School | School | 181 | Hamilton | 39 17 44 N | 084 26 58 W |
| Heritage Hills (subdivision) | Populated Place | 350 | Carroll | 40 32 33 N | 081 06 32 W |
| Heritage Lake | Reservoir | 226 | Clermont | 39 08 36 N | 084 07 54 W |
| Heritage Lake | Reservoir | 331 | Summit | 41 11 36 N | 081 24 11 W |
| Heritage Lake Dam | Dam | 221 | Clermont | 39 08 36 N | 084 07 54 W |
| Heritage Middle School | School | 278 | Delaware | 40 08 27 N | 082 54 01 W |
| Heritage Museum of Kappa Kappa Gamma | Building | 238 | Franklin | 39 57 38 N | 082 59 10 W |
| Heritage Park | Park | 259 | Allen | 40 41 41 N | 084 08 35 W |
| Heritage Park | Park | 198 | Cuyahoga | 41 34 08 N | 081 32 03 W |
| Heritage Park | Park | 246 | Franklin | 40 07 50 N | 082 56 42 W |
| Heritage Park | Park | | Hamilton | 39 13 33 N | 084 32 49 W |
| Heritage South Plaza Shopping Center | Locale | 188 | Lucas | 41 38 00 N | 083 33 12 W |
| Heritage Temple Christian School | School | 221 | Franklin | 39 54 51 N | 082 59 48 W |
| Heritage Temple Freewill Baptist Church | Church | 222 | Franklin | 39 54 53 N | 082 59 45 W |
| Heritage United Methodist Church | Church | 260 | Hamilton | 39 13 56 N | 084 32 51 W |
| Heritage Village (subdivision) | Populated Place | 277 | Tuscarawas | 40 32 23 N | 081 29 04 W |
| Herlan | Populated Place | 263 | Monroe | 39 48 31 N | 081 17 37 W |
| Herls Harbor | Locale | 174 | Ottawa | 41 33 21 N | 082 49 49 W |
| Herman K Ankeney Junior High School | School | 283 | Greene | 39 42 44 N | 084 05 21 W |
| Herman Playground | Park | 196 | Cuyahoga | 41 29 14 N | 081 43 43 W |
| Hermann Court | Building | 315 | Clinton | 39 26 27 N | 083 49 03 W |
| Hermann Ditch | Canal | 224 | Putnam | 40 56 52 N | 084 22 48 W |
| Hermans Cemetery | Cemetery | 347 | Wayne | 40 44 03 N | 081 54 23 W |
| Hermanville | Populated Place | 349 | Wayne | 40 54 57 N | 081 54 39 W |
| Hermits Hollow Picnic Area | Locale | 213 | Cuyahoga | 41 22 24 N | 081 34 16 W |
| Herner Corners | Populated Place | 269 | Trumbull | 41 22 15 N | 080 59 24 W |
| Heron Lakes Golf Club | Locale | 277 | Delaware | 40 10 35 N | 082 53 34 W |
| Heron Run Trail | Trail | 269 | Montgomery | 39 48 07 N | 084 21 06 W |
| Heros Grove | Woods | 219 | Hamilton | 39 07 01 N | 084 29 48 W |
| Herr Airport | Airport | 204 | Wood | 41 24 15 N | 083 47 05 W |
| Herr Cemetery | Cemetery | 296 | Montgomery | 39 53 29 N | 084 19 23 W |
| Herr II Airport | Airport | 202 | Wood | 41 25 12 N | 083 47 50 W |
| Herr Pond | Reservoir | 313 | Trumbull | 41 17 30 N | 080 43 17 W |
| Herr Pond Dam | Dam | 313 | Trumbull | 41 17 30 N | 080 43 17 W |
| Herrenstine Cemetery | Cemetery | 216 | Pickaway | 39 39 13 N | 083 02 16 W |
| Herrick | Populated Place | 251 | Jefferson | 40 12 35 N | 080 49 50 W |
| Herrick Ditch | Canal | 242 | Lorain | 41 19 27 N | 082 13 36 W |
| Herrick Hall | Building | 338 | Licking | 40 04 17 N | 082 31 31 W |
| Herrick Post Office (historical) | Post Office | 250 | Jefferson | 40 12 35 N | 080 49 49 W |
| Herrington Bethel Cemetery | Cemetery | 349 | Carroll | 40 38 58 N | 081 00 45 W |
| Herrington Bethel Church | Church | 350 | Carroll | 40 38 57 N | 081 00 44 W |
| Herrod Creek | Stream | | Ross | 39 27 11 N | 083 13 59 W |
| Herrold Run | Stream | | Athens | 39 20 33 N | 081 53 15 W |
| Hershberger Cemetery | Cemetery | 359 | Holmes | 40 30 03 N | 081 43 59 W |
| Hershberger Cemetery | Cemetery | 357 | Wayne | 40 40 33 N | 081 44 45 W |
| Hershberger Cemetery | Cemetery | 377 | Wayne | 40 41 49 N | 081 44 11 W |
| Hershey Cemetery | Cemetery | 258 | Monroe | 39 40 13 N | 081 14 22 W |
| Hertel Cemetery | Cemetery | 218 | Paulding | 41 03 26 N | 084 23 39 W |
| Hertenstein Ditch | Canal | 334 | Madison | 39 47 04 N | 083 33 55 W |
| Herzog Quarry | Mine | 262 | Hardin | 40 45 42 N | 083 31 57 W |
| Heskett Middle School | School | 323 | Cuyahoga | 41 24 12 N | 081 29 51 W |
| Heslop | Populated Place | 206 | Washington | 39 30 57 N | 081 17 03 W |
| Hesse Cassel School (historical) | School | 262 | Defiance | 41 24 41 N | 084 44 33 W |
| Hesson Cemetery | Cemetery | 226 | Noble | 39 41 05 N | 081 24 24 W |
| Hessville | Populated Place | 192 | Sandusky | 41 24 06 N | 083 14 40 W |
| Hessville Cemetery | Cemetery | 193 | Sandusky | 41 23 40 N | 083 14 48 W |
| Hessville Post Office (historical) | Post Office | 192 | Sandusky | 41 24 05 N | 083 14 40 W |
| Hester Cemetery | Cemetery | 256 | Huron | 41 10 02 N | 082 37 48 W |
| Hester School (historical) | School | 256 | Ross | 39 18 54 N | 083 14 52 W |
| Heston | Building | 346 | Columbiana | 40 46 30 N | 080 40 29 W |
| Heston (historical) | Locale | 346 | Columbiana | 40 46 30 N | 080 40 29 W |
| Hestoria | Populated Place | 158 | Brown | 38 44 02 N | 083 50 11 W |