Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Crooksville Reservoir | Reservoir | 249 | Perry | 39 42 04 N | 082 04 24 W |
| Crooksville Reservoir Number One | Reservoir | 270 | Morgan | 39 45 42 N | 082 02 48 W |
| Crooksville Reservoir Number One Dam | Dam | 270 | Morgan | 39 45 42 N | 082 02 48 W |
| Crooksville Reservoir Number Three | Reservoir | 266 | Perry | 39 42 06 N | 082 04 30 W |
| Crooksville Reservoir Number Three Dam | Dam | 266 | Perry | 39 42 06 N | 082 04 30 W |
| Crooksville Reservoir Number Two | Reservoir | 279 | Morgan | 39 45 54 N | 082 02 36 W |
| Crooksville Reservoir Number Two Dam | Dam | 279 | Morgan | 39 45 54 N | 082 02 36 W |
| Crosby Cemetery | Cemetery | 257 | Ashtabula | 41 36 53 N | 080 51 57 W |
| Crosby Cemetery | Cemetery | 203 | Jackson | 39 07 51 N | 082 41 53 W |
| Crosby Elementary School | School | 177 | Hamilton | 39 16 34 N | 084 43 02 W |
| Crosby Elementary School | School | 302 | Summit | 41 05 23 N | 081 31 28 W |
| Crosby United Methodist Church | Church | 171 | Hamilton | 39 16 37 N | 084 44 24 W |
| Croskey Pond | Reservoir | 333 | Harrison | 40 15 54 N | 080 55 41 W |
| Croskey Pond Dam | Dam | 333 | Harrison | 40 15 54 N | 080 55 41 W |
| Crosley Ditch | Canal | 276 | Allen | 40 43 17 N | 084 03 35 W |
| Crosley Field (historical) | Park | 149 | Hamilton | 39 07 01 N | 084 32 07 W |
| Crosley Tower | Building | 233 | Hamilton | 39 08 04 N | 084 31 01 W |
| Cross Airport | Airport | 340 | Stark | 40 46 38 N | 081 27 31 W |
| Cross Creek | Stream | | Jefferson | 40 18 31 N | 080 36 18 W |
| Cross Creek Coal Company Dam 0314-001 | Dam | 282 | Tuscarawas | 40 26 36 N | 081 30 05 W |
| Cross Creek Coal Company Reservoir 0314-00 | Reservoir | 282 | Tuscarawas | 40 26 36 N | 081 30 05 W |
| Cross Creek Memorial Building | Building | 362 | Jefferson | 40 22 37 N | 080 42 55 W |
| Cross Creek Presbyterian Cemetery | Cemetery | 318 | Jefferson | 40 20 58 N | 080 41 12 W |
| Cross Farm (historical) | Locale | 395 | Knox | 40 22 25 N | 082 33 60 W |
| Cross Hollow | Valley | | Adams | 38 49 52 N | 083 19 44 W |
| Cross Keys (historical) | Populated Place | 319 | Monroe | 39 35 21 N | 081 13 48 W |
| Cross Mine | Mine | 329 | Harrison | 40 23 10 N | 081 13 01 W |
| Cross Pointe Centre Shopping Center | Locale | 286 | Montgomery | 39 38 36 N | 084 09 25 W |
| Cross Pond | Reservoir | 292 | Preble | 39 38 30 N | 084 39 12 W |
| Cross Pond Dam | Dam | 292 | Preble | 39 38 30 N | 084 39 12 W |
| Cross Road Baptist Church | Church | 154 | Hamilton | 39 09 43 N | 084 32 23 W |
| Cross Road United Baptist Church | Church | 228 | Franklin | 39 53 28 N | 082 58 03 W |
| Cross Roads Cemetery | Cemetery | 327 | Stark | 40 43 38 N | 081 34 21 W |
| Cross Roads Plaza Shopping Center | Locale | 203 | Ashtabula | 41 50 11 N | 080 51 09 W |
| Cross Roads Plaza Shopping Center | Locale | 212 | Wood | 41 21 26 N | 083 39 05 W |
| Cross School (historical) | School | 288 | Adams | 38 55 44 N | 083 37 32 W |
| Cross School (historical) | School | 320 | Holmes | 40 32 38 N | 082 07 35 W |
| Cross Way Apostolic Church | Church | 321 | Summit | 41 05 04 N | 081 33 24 W |
| Crossburn Playground | Park | 238 | Cuyahoga | 41 25 28 N | 081 46 58 W |
| Crossenville | Populated Place | 306 | Perry | 39 40 50 N | 082 21 23 W |
| Crossenville Post Office (historical) | Post Office | 298 | Perry | 39 40 50 N | 082 21 35 W |
| Crosses Run | Stream | | Union | 40 14 33 N | 083 21 24 W |
| Crossgates Elementary School | School | 189 | Lucas | 41 36 18 N | 083 38 05 W |
| Crossings of Anderson Shopping Center | Locale | 266 | Hamilton | 39 04 22 N | 084 19 19 W |
| Crossings of Blue Ash Shopping Center | Locale | 256 | Hamilton | 39 13 50 N | 084 22 36 W |
| Crossings of Colerain Shopping Center | Locale | 263 | Hamilton | 39 13 37 N | 084 35 15 W |
| Crosskeys Post Office (historical) | Post Office | 311 | Monroe | 39 35 20 N | 081 13 48 W |
| Crosskeys Run | Stream | | Wayne | 40 48 55 N | 081 47 01 W |
| Crosson Cemetery | Cemetery | 254 | Warren | 39 18 21 N | 084 06 20 W |
| Crossroads | Populated Place | 331 | Stark | 40 43 37 N | 081 34 25 W |
| Crossroads Cemetery | Cemetery | 220 | Athens | 39 12 58 N | 082 10 32 W |
| Crossroads Cemetery | Cemetery | 305 | Morgan | 39 39 58 N | 081 41 26 W |
| Crossroads Cemetery | Cemetery | 268 | Tuscarawas | 40 22 02 N | 081 24 08 W |
| Crossroads Church | Church | 305 | Morgan | 39 39 58 N | 081 41 25 W |
| Crossroads Church Cemetery | Cemetery | 255 | Coshocton | 40 22 50 N | 081 45 06 W |
| Crossroads East Shopping Center | Locale | 231 | Franklin | 39 55 13 N | 082 52 44 W |
| Crossroads Evangelical and Reformed Church | Church | 329 | Stark | 40 43 38 N | 081 34 23 W |
| Crossroads Plaza Shopping Center | Locale | 186 | Hamilton | 39 15 33 N | 084 48 15 W |
| Crossroads School (historical) | School | 338 | Champaign | 40 01 22 N | 083 43 49 W |
| Crossroads School (historical) | School | 260 | Guernsey | 40 04 57 N | 081 27 32 W |
| Crossroads School (historical) | School | 304 | Perry | 39 49 50 N | 082 21 29 W |
| Crossroads School (historical) | School | 326 | Stark | 40 43 38 N | 081 34 20 W |
| Crossroads Shopping Center | Locale | 267 | Cuyahoga | 41 19 23 N | 081 50 14 W |
| Crosstown | Populated Place | 278 | Brown | 39 05 30 N | 084 00 22 W |
| Crosstown Post Office (historical) | Post Office | 277 | Brown | 39 05 30 N | 084 00 20 W |
| Crosstrails Shopping Center | Locale | 190 | Lucas | 41 36 53 N | 083 40 60 W |
| Crossway Industrial Park | Locale | 260 | Hamilton | 39 17 05 N | 084 33 25 W |
| Crosswick | Populated Place | 264 | Warren | 39 32 38 N | 084 04 44 W |
| Crosswind Meadows Airport | Airport | 348 | Columbiana | 40 48 44 N | 081 03 18 W |
| Crosswoods | Populated Place | 184 | Wood | 41 36 00 N | 083 26 25 W |
| Crosswoods Center Industrial Park | Locale | 278 | Franklin | 40 07 02 N | 083 00 40 W |
| Croswell | Populated Place | 220 | Putnam | 41 01 15 N | 084 11 52 W |
| Croton | Populated Place | 356 | Licking | 40 14 19 N | 082 41 33 W |
| Croton Post Office | Post Office | 355 | Licking | 40 14 20 N | 082 41 35 W |
| Croton United Methodist Church | Church | 353 | Licking | 40 14 24 N | 082 41 15 W |
| Crouch Building | Building | | Hamilton | 39 06 48 N | 084 33 12 W |
| Crouch School (historical) | School | 271 | Mercer | 40 30 31 N | 084 39 59 W |
| Crouse Cemetery | Cemetery | 332 | Ashland | 40 54 04 N | 082 16 28 W |
| Crouse Chapel | Church | 207 | Ross | 39 26 23 N | 082 57 49 W |
| Crouse Chapel Cemetery | Cemetery | 214 | Ross | 39 26 23 N | 082 57 47 W |
| Crouse Elementary School | School | 328 | Summit | 41 04 38 N | 081 33 06 W |
| Crouse Hall | Building | 323 | Summit | 41 04 34 N | 081 30 44 W |
| Crow Cemetery | Cemetery | 265 | Auglaize | 40 35 23 N | 084 14 31 W |
| Crow Cemetery | Cemetery | 221 | Putnam | 41 03 27 N | 084 07 26 W |
| Crow Church (historical) | Church | 221 | Putnam | 41 03 28 N | 084 07 22 W |
| Crow Creek | Stream | | Lorain | 41 11 21 N | 082 05 44 W |
| Crow Hollow | Valley | | Jefferson | 40 13 15 N | 080 46 06 W |
| Crow Run | Stream | | Muskingum | 39 46 49 N | 081 54 26 W |
| Crowe Hollow | Valley | | Scioto | 38 51 55 N | 083 01 10 W |
| Crowe Hollow Church | Church | 189 | Scioto | 38 51 58 N | 083 01 40 W |
| Crowfoot Cemetery | Cemetery | 331 | Medina | 41 04 10 N | 081 48 21 W |
| Crown City | Populated Place | 173 | Gallia | 38 35 27 N | 082 16 59 W |
| Crown City Cemetery | Cemetery | 174 | Gallia | 38 35 18 N | 082 17 13 W |
| Crown City Methodist Church | Church | 174 | Gallia | 38 35 23 N | 082 16 58 W |
| Crown City Post Office | Post Office | 174 | Gallia | 38 35 25 N | 082 16 60 W |
| Crown Hill Cemetery | Cemetery | 185 | Ottawa | 41 38 37 N | 082 50 06 W |
| Crown Hill Cemetery | Cemetery | 331 | Summit | 41 18 05 N | 081 26 49 W |
| Crown Hill Cemetery | Cemetery | 341 | Trumbull | 41 14 24 N | 080 40 43 W |
| Crown Hill Cemetery | Cemetery | 344 | Wayne | 40 50 46 N | 081 47 09 W |
| Crown Hill Memorial Park | Cemetery | 263 | Hamilton | 39 17 51 N | 084 34 25 W |
| Crown Hill Mennonite Cemetery | Cemetery | 313 | Wayne | 40 55 04 N | 081 46 52 W |
| Crown Hill Mennonite Church | Church | 314 | Wayne | 40 55 04 N | 081 46 55 W |
| Crown of Life Evangelical Lutheran Church | Church | 188 | Washington | 39 25 12 N | 081 27 25 W |
| Crown Point | Populated Place | 291 | Montgomery | 39 45 03 N | 084 16 02 W |
| Crown Point Shopping Center | Locale | 271 | Franklin | 40 03 53 N | 083 04 17 W |
| Crown Water Filtration and Pump Station | Building | 199 | Cuyahoga | 41 28 28 N | 081 52 49 W |
| Crownhill Cemetery | Cemetery | 198 | Lorain | 41 23 39 N | 082 13 52 W |
| Crownover Mill | Populated Place | 246 | Pickaway | 39 37 08 N | 083 13 02 W |
| Crows Landing | Locale | 173 | Meigs | 38 56 43 N | 081 48 34 W |
| Croxton Bar | Bar | 198 | Jefferson | 40 28 59 N | 080 36 03 W |