Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Verhoff Airport | Airport | 221 | Putnam | 41 04 23 N | 084 12 46 W |
| Vogt School (historical) | School | 228 | Putnam | 40 54 13 N | 084 19 46 W |
| Wallehorst School (historical) | School | 230 | Putnam | 40 52 27 N | 084 18 05 W |
| Wards (historical) | Populated Place | 228 | Putnam | 41 06 11 N | 084 03 57 W |
| WBGU-TV (Bowling Green) | Tower | 222 | Putnam | 41 08 13 N | 083 54 23 W |
| West Belmore Cemetery | Cemetery | 223 | Putnam | 41 09 18 N | 083 57 41 W |
| West Leipsic | Populated Place | 235 | Putnam | 41 06 26 N | 084 00 09 W |
| West Leipsic Post Office (historical) | Post Office | 236 | Putnam | 41 06 25 N | 084 00 10 W |
| West Leipsic United Methodist Church | Church | 236 | Putnam | 41 06 25 N | 084 00 09 W |
| West School (historical) | School | 221 | Putnam | 41 01 13 N | 084 02 58 W |
| Wing Cemetery | Cemetery | 219 | Putnam | 41 06 59 N | 084 13 40 W |
| Wisely Cemetery | Cemetery | 234 | Putnam | 40 56 34 N | 084 01 05 W |
| Wisterman | Populated Place | 217 | Putnam | 41 07 25 N | 084 14 16 W |
| Wisterman Post Office (historical) | Post Office | 218 | Putnam | 41 07 25 N | 084 14 15 W |
| WQTL-FM (Ottawa) | Tower | 236 | Putnam | 40 57 21 N | 083 54 42 W |
| Yellow Creek Reservoir | Reservoir | 225 | Putnam | 41 06 28 N | 083 55 45 W |
| Adario | Populated Place | 351 | Richland | 40 56 04 N | 082 27 01 W |
| Adario Cemetery | Cemetery | 353 | Richland | 40 55 50 N | 082 26 49 W |
| Adario Post Office (historical) | Post Office | 351 | Richland | 40 56 05 N | 082 26 60 W |
| Ahrens Lake | Reservoir | 409 | Richland | 40 43 30 N | 082 39 60 W |
| Ahrens Lake Dam | Dam | 409 | Richland | 40 43 30 N | 082 39 60 W |
| Airport Park | Park | 396 | Richland | 40 48 40 N | 082 30 47 W |
| All Souls Unitarian Universalist Church | Church | 348 | Richland | 40 37 12 N | 082 30 49 W |
| Alta | Populated Place | 392 | Richland | 40 43 57 N | 082 34 11 W |
| Alta Post Office (historical) | Post Office | 392 | Richland | 40 43 55 N | 082 34 10 W |
| Amoy | Populated Place | 383 | Richland | 40 49 43 N | 082 33 12 W |
| Amoy Post Office (historical) | Post Office | 384 | Richland | 40 49 45 N | 082 33 10 W |
| Apostolic Christian Church | Church | 373 | Richland | 40 45 27 N | 082 30 50 W |
| Apostolic Christian Church | Church | 431 | Richland | 40 43 23 N | 082 32 24 W |
| Apostolic Full Gospel Church | Church | 401 | Richland | 40 46 42 N | 082 32 53 W |
| Appleseed Center Shopping Center | Locale | 435 | Richland | 40 43 13 N | 082 32 55 W |
| Arlin Field Stadium | Park | 386 | Richland | 40 45 53 N | 082 33 03 W |
| Au Heliport | Airport | 393 | Richland | 40 46 23 N | 082 33 46 W |
| Auburn Elementary School | School | 338 | Richland | 40 53 01 N | 082 40 27 W |
| Babble Brook | Stream | | Richland | 40 33 38 N | 082 23 32 W |
| Bahl Helistop | Airport | 408 | Richland | 40 45 25 N | 082 33 01 W |
| Bangor Post Office (historical) | Post Office | 420 | Richland | 40 33 55 N | 082 33 50 W |
| Bangorville | Populated Place | 419 | Richland | 40 33 54 N | 082 33 51 W |
| Banks Cemetery | Cemetery | 433 | Richland | 40 40 28 N | 082 28 19 W |
| Banks Pond | Reservoir | 389 | Richland | 40 40 18 N | 082 21 12 W |
| Banks Pond Dam | Dam | 389 | Richland | 40 40 18 N | 082 21 12 W |
| Bear Run | Stream | | Richland | 40 54 51 N | 082 38 23 W |
| Bedford Elementary School | School | 428 | Richland | 40 46 59 N | 082 35 38 W |
| Beech Grove School (historical) | School | 380 | Richland | 40 43 58 N | 082 42 10 W |
| Bellville | Populated Place | 347 | Richland | 40 37 12 N | 082 30 39 W |
| Bellville Cemetery | Cemetery | 367 | Richland | 40 37 16 N | 082 31 08 W |
| Bellville Elementary School | School | 346 | Richland | 40 37 05 N | 082 30 30 W |
| Bellville Post Office | Post Office | 348 | Richland | 40 37 10 N | 082 30 40 W |
| Bellville United Methodist Church | Church | 348 | Richland | 40 37 16 N | 082 30 47 W |
| Bellville United Presbyterian Church | Church | 348 | Richland | 40 37 14 N | 082 30 51 W |
| Bender Airport | Airport | 347 | Richland | 40 37 17 N | 082 32 02 W |
| Bethlehem | Populated Place | 346 | Richland | 40 50 19 N | 082 43 12 W |
| Bethlehem Cemetery | Cemetery | 347 | Richland | 40 50 18 N | 082 43 23 W |
| Bicentennial Park | Park | 358 | Richland | 40 41 30 N | 082 35 44 W |
| Black Swamp School (historical) | School | 369 | Richland | 40 35 39 N | 082 21 27 W |
| Blackman School (historical) | School | 329 | Richland | 40 54 32 N | 082 42 01 W |
| Blooming Grove Cemetery | Cemetery | 355 | Richland | 40 58 24 N | 082 29 39 W |
| Blooming Grove Church (historical) | Church | 353 | Richland | 40 58 25 N | 082 29 37 W |
| Bnai Jacob Congregation | Church | 436 | Richland | 40 43 56 N | 082 31 43 W |
| Boyce Cemetery | Cemetery | 357 | Richland | 40 51 28 N | 082 32 35 W |
| Brinkerhoff Elementary School | School | 409 | Richland | 40 45 08 N | 082 32 27 W |
| Brubaker Creek | Stream | | Richland | 40 52 38 N | 082 29 05 W |
| Buenavista School (historical) | School | 355 | Richland | 40 47 10 N | 082 25 03 W |
| Bunker Hill Cemetery | Cemetery | 401 | Richland | 40 35 37 N | 082 22 23 W |
| Butler | Populated Place | 326 | Richland | 40 35 18 N | 082 25 30 W |
| Butler Church (historical) | Church | 344 | Richland | 40 58 31 N | 082 26 14 W |
| Butler Elementary School | School | 346 | Richland | 40 35 26 N | 082 25 45 W |
| Butler Post Office | Post Office | 326 | Richland | 40 35 20 N | 082 25 30 W |
| Butler Trinity United Methodist Church | Church | 330 | Richland | 40 35 12 N | 082 25 30 W |
| Caesarea Cemetery | Cemetery | 428 | Richland | 40 42 38 N | 082 28 50 W |
| Caesarea Church | Church | 427 | Richland | 40 42 38 N | 082 28 53 W |
| Calvary Bible Church (historical) | Church | 386 | Richland | 40 45 05 N | 082 30 26 W |
| Camp Avery | Locale | 391 | Richland | 40 43 41 N | 082 38 53 W |
| Camp Mowana | Locale | 349 | Richland | 40 47 41 N | 082 26 03 W |
| Camp Ninwan | Locale | 414 | Richland | 40 47 13 N | 082 37 08 W |
| Camp Otyokwah | Locale | 363 | Richland | 40 36 01 N | 082 23 07 W |
| Camp Wooster | Locale | 329 | Richland | 40 37 53 N | 082 20 27 W |
| Carmel Chapel | Church | 373 | Richland | 40 48 20 N | 082 32 17 W |
| Carpenter Elementary School | School | 403 | Richland | 40 45 26 N | 082 31 38 W |
| Carter School (historical) | School | 437 | Richland | 40 44 22 N | 082 35 25 W |
| Cedar Fork | Stream | | Richland | 40 37 28 N | 082 32 06 W |
| Center Grove School (historical) | School | 360 | Richland | 40 33 56 N | 082 28 17 W |
| Center Hall School (historical) | School | 376 | Richland | 40 40 57 N | 082 23 52 W |
| Center Hill School (historical) | School | 405 | Richland | 40 40 53 N | 082 30 40 W |
| Central Elementary School | School | 385 | Richland | 40 40 32 N | 082 35 07 W |
| Central Elementary School | School | 332 | Richland | 40 52 41 N | 082 39 33 W |
| Central High School | School | 330 | Richland | 40 52 47 N | 082 39 32 W |
| Central Ohio Industrial Park | Locale | | Richland | 40 54 01 N | 082 40 09 W |
| Central Park | Park | 378 | Richland | 40 45 30 N | 082 30 54 W |
| Central United Methodist Church | Church | 405 | Richland | 40 45 33 N | 082 31 45 W |
| Cesarea | Populated Place | 425 | Richland | 40 42 39 N | 082 28 55 W |
| Chapelwood Covenant Church (historical) | Church | 424 | Richland | 40 44 37 N | 082 31 60 W |
| Charles Cemetery | Cemetery | 314 | Richland | 40 51 19 N | 082 26 17 W |
| Cherry Valley School (historical) | School | 356 | Richland | 40 39 08 N | 082 32 50 W |
| Chestnut Chapel School (historical) | School | 428 | Richland | 40 39 08 N | 082 30 42 W |
| Chever Park | Park | 403 | Richland | 40 47 03 N | 082 38 56 W |
| Christ Gospel Church | Church | 386 | Richland | 40 45 05 N | 082 30 26 W |
| Christian Assembly Church | Church | 403 | Richland | 40 46 12 N | 082 28 38 W |
| Christian Union Church | Church | 374 | Richland | 40 47 16 N | 082 32 28 W |
| Church of Christ (historical) | Church | 412 | Richland | 40 44 49 N | 082 31 01 W |
| Church of God | Church | 396 | Richland | 40 46 53 N | 082 33 06 W |
| Church of God | Church | 369 | Richland | 40 47 16 N | 082 32 10 W |
| Church of God (historical) | Church | 356 | Richland | 40 46 22 N | 082 30 23 W |
| Church of God in Christ (historical) | Church | 353 | Richland | 40 45 52 N | 082 30 51 W |
| Church of the Cross United Methodist Church | Church | 373 | Richland | 40 41 04 N | 082 35 58 W |
| City of Mansfield | Civil | 398 | Richland | 40 45 13 N | 082 31 30 W |
| Clay Memorial Cemetery | Cemetery | 388 | Richland | 40 49 43 N | 082 32 16 W |
| Clear Creek | Stream | | Richland | 40 58 22 N | 082 24 54 W |
| Clear Fork Church | Church | 403 | Richland | 40 35 38 N | 082 22 23 W |
| Clear Fork High School | School | 338 | Richland | 40 37 11 N | 082 30 26 W |