Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Longrun Post Office (historical) | Post Office | 292 | Licking | 40 12 25 N | 082 17 10 W |
| Longs Corners | Locale | 295 | Morrow | 40 28 20 N | 083 00 27 W |
| Longs Crossing | Populated Place | 341 | Columbiana | 40 50 03 N | 080 48 29 W |
| Longs Retreat Dam | Dam | 237 | Pike | 39 05 18 N | 083 18 60 W |
| Longs Retreat Lake | Reservoir | 240 | Pike | 39 05 18 N | 083 18 60 W |
| Longs Run | Stream | | Columbiana | 40 42 39 N | 080 34 24 W |
| Longs Run | Stream | | Washington | 39 18 29 N | 081 45 28 W |
| Longs Run Cemetery | Cemetery | 372 | Columbiana | 40 40 16 N | 080 33 59 W |
| Longs Run Church | Church | 372 | Columbiana | 40 40 16 N | 080 34 00 W |
| Longs School (historical) | School | 236 | Allen | 40 49 55 N | 084 17 38 W |
| Longs School (historical) | School | 256 | Allen | 40 41 58 N | 084 22 41 W |
| Longs School (historical) | School | 363 | Noble | 39 56 48 N | 081 20 00 W |
| Longstretch Cemetery | Cemetery | 233 | Meigs | 39 05 14 N | 082 13 21 W |
| Longstreth | Populated Place | 215 | Hocking | 39 29 53 N | 082 13 13 W |
| Longstreth Post Office (historical) | Post Office | 229 | Hocking | 39 29 55 N | 082 13 15 W |
| Longview Cemetery | Cemetery | 389 | Harrison | 40 11 28 N | 080 59 34 W |
| Longview Cemetery | Cemetery | 332 | Harrison | 40 25 57 N | 081 11 13 W |
| Longview Heights | Populated Place | 306 | Athens | 39 18 09 N | 082 05 18 W |
| Longview State Hospital | Hospital | 177 | Hamilton | 39 11 19 N | 084 28 30 W |
| Longville (historical) | Populated Place | 280 | Marion | 40 35 08 N | 083 13 03 W |
| Longville Post Office (historical) | Post Office | 280 | Marion | 40 35 10 N | 083 13 05 W |
| Longvue (subdivision) | Populated Place | 220 | Washington | 39 25 23 N | 081 26 19 W |
| Longwell Run | Stream | | Delaware | 40 17 25 N | 082 57 33 W |
| Longwood School (historical) | School | 207 | Cuyahoga | 41 29 32 N | 081 39 48 W |
| Lonz Airport | Airport | 176 | Ottawa | 41 40 25 N | 082 48 35 W |
| Lonz Marine Harbor | Harbor | 174 | Ottawa | 41 40 32 N | 082 48 28 W |
| Look About Lodge | Building | 283 | Cuyahoga | 41 25 24 N | 081 25 16 W |
| Lookdale Church | Church | 170 | Lawrence | 38 24 48 N | 082 30 37 W |
| Lookout Park | Park | 301 | Summit | 41 05 34 N | 081 30 01 W |
| Lookout Park | Park | 272 | Washington | 39 25 08 N | 081 28 10 W |
| Lookout Point | Cliff | 264 | Ross | 39 13 26 N | 083 09 10 W |
| Lookout Rock | Pillar | 231 | Vinton | 39 18 10 N | 082 19 24 W |
| Lookout School (historical) | School | 379 | Coshocton | 40 26 15 N | 082 04 35 W |
| Loomis | Populated Place | 317 | Belmont | 40 01 43 N | 081 00 30 W |
| Loomis Cemetery | Cemetery | 271 | Ashtabula | 41 30 20 N | 080 56 38 W |
| Loomis Elementary School | School | 244 | Cuyahoga | 41 22 13 N | 081 50 54 W |
| Loop Park | Park | 187 | Wood | 41 35 23 N | 083 29 14 W |
| Loope School (historical) | School | 317 | Preble | 39 36 57 N | 084 37 10 W |
| Loos Park | Park | 251 | Montgomery | 39 48 13 N | 084 13 05 W |
| Loper Hollow | Valley | | Vinton | 39 19 34 N | 082 17 40 W |
| Lorain | Populated Place | 186 | Lorain | 41 27 10 N | 082 10 57 W |
| Lorain Baptist Church | Church | 192 | Lorain | 41 26 15 N | 082 06 57 W |
| Lorain Branch Cleveland Public Library | Building | 213 | Cuyahoga | 41 28 16 N | 081 44 30 W |
| Lorain Business College | School | 209 | Lorain | 41 25 07 N | 082 08 01 W |
| Lorain Catholic High School (historical) | School | 193 | Lorain | 41 26 16 N | 082 10 37 W |
| Lorain Church of Christ | Church | 218 | Lorain | 41 25 21 N | 082 09 28 W |
| Lorain City Hall | Building | 182 | Lorain | 41 28 05 N | 082 10 48 W |
| Lorain Community Hospital | Hospital | 183 | Lorain | 41 26 10 N | 082 14 16 W |
| Lorain Community Hospital Heliport | Airport | 183 | Lorain | 41 26 15 N | 082 14 11 W |
| Lorain Country Club | Locale | 182 | Lorain | 41 25 54 N | 082 14 07 W |
| Lorain County | Civil | 234 | Lorain | 41 20 00 N | 082 09 00 W |
| Lorain County Community College | School | 212 | Lorain | 41 24 47 N | 082 04 22 W |
| Lorain County Courthouse | Building | 224 | Lorain | 41 21 58 N | 082 06 27 W |
| Lorain county Fairgrounds | Locale | 262 | Lorain | 41 09 51 N | 082 13 48 W |
| Lorain County Jail | Building | 223 | Lorain | 41 21 54 N | 082 06 25 W |
| Lorain County Law Library | Building | 224 | Lorain | 41 21 58 N | 082 06 27 W |
| Lorain County Regional Airport | Airport | 240 | Lorain | 41 20 39 N | 082 10 39 W |
| Lorain County Speedway | Locale | 239 | Lorain | 41 21 34 N | 082 12 60 W |
| Lorain Detention Home | Building | 234 | Lorain | 41 20 43 N | 082 07 59 W |
| Lorain High School | School | 184 | Lorain | 41 27 49 N | 082 10 50 W |
| Lorain Industrial Park | Locale | 191 | Lorain | 41 25 00 N | 082 16 45 W |
| Lorain Lighthouse | Locale | 174 | Lorain | 41 28 38 N | 082 11 26 W |
| Lorain Plaza Shopping Center | Locale | 189 | Lorain | 41 26 23 N | 082 11 03 W |
| Lorain Post Office | Post Office | 185 | Lorain | 41 27 48 N | 082 10 23 W |
| Lorain Post Office | Post Office | 186 | Lorain | 41 27 10 N | 082 10 60 W |
| Lorain Public Library | Building | 183 | Lorain | 41 27 52 N | 082 10 39 W |
| Lorain School for Retarded Children | School | 235 | Lorain | 41 20 53 N | 082 08 14 W |
| Lorain Seventh Day Adventist Church | Church | 192 | Lorain | 41 26 38 N | 082 07 42 W |
| Lorain Yacht Basin | Harbor | 176 | Lorain | 41 28 15 N | 082 10 45 W |
| Lorain Yacht Club | Locale | 178 | Lorain | 41 28 14 N | 082 10 33 W |
| Loramie Creek | Stream | | Shelby | 40 11 20 N | 084 14 32 W |
| Loramie Mill | Locale | 266 | Miami | 40 11 39 N | 084 14 32 W |
| Loran Street Church | Church | 168 | Lawrence | 38 30 29 N | 082 39 43 W |
| Lord Ditch | Canal | 286 | Hardin | 40 45 12 N | 083 46 52 W |
| Lord Hall | Building | 231 | Franklin | 40 00 06 N | 083 00 42 W |
| Lord Jesus Christ of Apostolic Faith Church | Church | 244 | Franklin | 39 59 04 N | 082 59 16 W |
| Lord of Life Fellowship Church | Church | 244 | Franklin | 39 58 43 N | 082 55 23 W |
| Lord of Life Lutheran Church | Church | 189 | Lorain | 41 25 49 N | 082 12 08 W |
| Lord of Life Lutheran Church | Church | 355 | Mahoning | 41 02 37 N | 080 45 39 W |
| Lord of Peace Episcopal Church | Church | 241 | Clermont | 39 05 02 N | 084 13 31 W |
| Lordstown | Populated Place | 290 | Trumbull | 41 09 56 N | 080 51 27 W |
| Lordstown Center Cemetery | Cemetery | 290 | Trumbull | 41 09 53 N | 080 51 07 W |
| Lordstown High School | School | 291 | Trumbull | 41 10 00 N | 080 51 29 W |
| Lordstown Military Reservation (historical) | Military (Historical) | 286 | Trumbull | 41 10 60 N | 080 52 10 W |
| Lordstown Post Office (historical) | Post Office | 291 | Trumbull | 41 09 55 N | 080 51 29 W |
| Lordstown Station (historical) | Locale | 282 | Trumbull | 41 08 51 N | 080 49 41 W |
| Lore City | Populated Place | 250 | Guernsey | 39 59 05 N | 081 27 30 W |
| Lore City Cemetery | Cemetery | 280 | Guernsey | 39 58 47 N | 081 27 10 W |
| Lore City Post Office | Post Office | 250 | Guernsey | 39 59 05 N | 081 27 29 W |
| Loretta Lake | Reservoir | 317 | Lorain | 41 04 18 N | 082 11 36 W |
| Loretta Lake Dam | Dam | 317 | Lorain | 41 04 18 N | 082 11 36 W |
| Losantiville Country Club | Locale | 234 | Hamilton | 39 11 01 N | 084 25 53 W |
| Losantiville Elementary School | School | 189 | Hamilton | 39 11 38 N | 084 26 60 W |
| Losantville Triangle | Populated Place | 245 | Hamilton | 39 07 42 N | 084 30 08 W |
| Loss Creek | Stream | | Crawford | 40 50 22 N | 082 49 51 W |
| Lost Bridge | Bridge | 138 | Hamilton | 39 09 13 N | 084 47 42 W |
| Lost Creek | Stream | | Allen | 40 44 58 N | 084 03 41 W |
| Lost Creek | Stream | | Defiance | 41 20 03 N | 084 32 53 W |
| Lost Creek | Stream | | Henry | 41 18 48 N | 084 02 28 W |
| Lost Creek | Stream | | Miami | 39 57 51 N | 084 09 17 W |
| Lost Creek | Stream | | Williams | 41 30 02 N | 084 30 56 W |
| Lost Creek Cemetery | Cemetery | 230 | Defiance | 41 21 19 N | 084 40 12 W |
| Lost Creek Cemetery | Cemetery | 295 | Miami | 40 04 34 N | 084 07 07 W |
| Lost Creek Church | Church | 326 | Miami | 40 05 16 N | 084 04 10 W |
| Lost Creek Country Club | Locale | 271 | Allen | 40 44 01 N | 084 04 08 W |
| Lost Creek Mennonite Church | Church | 240 | Defiance | 41 23 00 N | 084 40 29 W |
| Lost Creek Reservoir | Reservoir | 269 | Allen | 40 44 30 N | 084 03 60 W |
| Lost Creek School | School | 293 | Miami | 40 03 14 N | 084 07 23 W |
| Lost Creek School (historical) | School | 232 | Defiance | 41 21 16 N | 084 40 11 W |
| Lost Creek Upground Reservoir Dam | Dam | 269 | Allen | 40 44 30 N | 084 03 60 W |