Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Waynesfield United Methodist Church | Church | 324 | Auglaize | 40 36 02 N | 083 58 35 W |
| Waynesfield-Goshen Elementary School | School | 326 | Auglaize | 40 36 19 N | 083 58 24 W |
| Wesley Chapel Cemetery | Cemetery | 329 | Auglaize | 40 35 00 N | 084 01 56 W |
| Wesley Chapel Methodist Episcopal Church (historical) | Church | 329 | Auglaize | 40 35 01 N | 084 01 57 W |
| Wesleyan Methodist Church | Church | 273 | Auglaize | 40 32 43 N | 084 22 14 W |
| West Elementary School | School | 267 | Auglaize | 40 32 29 N | 084 24 09 W |
| Westview United Methodist Church | Church | 268 | Auglaize | 40 39 17 N | 084 09 06 W |
| WGLE-FM (Lima) | Tower | 284 | Auglaize | 40 39 15 N | 084 06 36 W |
| Wheeler Cemetery | Cemetery | 264 | Auglaize | 40 38 19 N | 084 12 13 W |
| Willow Branch Cemetery | Cemetery | 316 | Auglaize | 40 36 04 N | 083 57 21 W |
| Willow Branch School (historical) | School | 317 | Auglaize | 40 36 02 N | 083 57 25 W |
| Willow Creek | Stream | | Auglaize | 40 30 28 N | 083 59 12 W |
| Willow Grove Cemetery | Cemetery | 283 | Auglaize | 40 27 38 N | 084 21 47 W |
| Willow Grove Church (historical) | Church | 283 | Auglaize | 40 27 37 N | 084 21 51 W |
| Wisely Cemetery | Cemetery | 276 | Auglaize | 40 31 38 N | 084 13 51 W |
| Wolf Creek | Stream | | Auglaize | 40 29 14 N | 084 00 21 W |
| Wrestle Creek | Stream | | Auglaize | 40 38 51 N | 084 04 06 W |
| WZOQ-FM (Wapakoneta) | Tower | 281 | Auglaize | 40 39 20 N | 084 06 54 W |
| Yhl School (historical) | School | 267 | Auglaize | 40 34 07 N | 084 21 56 W |
| Zion Cemetery | Cemetery | 273 | Auglaize | 40 33 25 N | 084 16 09 W |
| Zion Cemetery | Cemetery | 256 | Auglaize | 40 40 17 N | 084 19 05 W |
| Zion Lutheran Church | Church | 268 | Auglaize | 40 32 35 N | 084 23 33 W |
| Zion School (historical) | School | 256 | Auglaize | 40 40 20 N | 084 19 07 W |
| Zion United Church of Christ | Church | 286 | Auglaize | 40 26 28 N | 084 23 07 W |
| Aetnaville | Populated Place | 201 | Belmont | 40 05 00 N | 080 44 14 W |
| Aetnaville Public School (historical) | School | 203 | Belmont | 40 05 00 N | 080 44 15 W |
| Agudas Achim Synagogue | Church | 201 | Belmont | 40 01 08 N | 080 44 26 W |
| Albert S George Youth Center | Building | 371 | Belmont | 39 59 44 N | 081 10 45 W |
| Alderman Airport | Airport | 360 | Belmont | 40 03 24 N | 080 57 47 W |
| Alexander Cemetery | Cemetery | 261 | Belmont | 40 01 44 N | 080 48 37 W |
| Alledonia | Populated Place | 253 | Belmont | 39 53 55 N | 080 58 09 W |
| Alledonia Post Office | Post Office | 253 | Belmont | 39 53 55 N | 080 58 09 W |
| Amity Church | Church | 211 | Belmont | 39 52 12 N | 080 50 18 W |
| Anderson Run | Stream | | Belmont | 39 54 54 N | 080 55 44 W |
| Anderson Run | Stream | | Belmont | 40 01 46 N | 080 56 14 W |
| Anvil | Populated Place | 399 | Belmont | 39 59 29 N | 080 50 04 W |
| Anvil Post Office (historical) | Post Office | 391 | Belmont | 39 59 30 N | 080 50 04 W |
| Apostolic Faith Temple | Church | 199 | Belmont | 40 00 33 N | 080 44 37 W |
| Arman Ridge | Ridge | 384 | Belmont | 39 51 31 N | 080 51 07 W |
| Armstrongs Cemetery | Cemetery | 236 | Belmont | 39 54 33 N | 080 54 41 W |
| Armstrongs Mills | Populated Place | 231 | Belmont | 39 54 29 N | 080 56 05 W |
| Armstrongs Mills Post Office | Post Office | 229 | Belmont | 39 54 30 N | 080 56 04 W |
| Assumption Catholic Church | Church | 381 | Belmont | 39 59 18 N | 081 10 50 W |
| Aults Run | Stream | | Belmont | 40 02 49 N | 080 51 29 W |
| Avondale | Populated Place | 207 | Belmont | 39 58 46 N | 080 44 28 W |
| B & O Railroad Pond Dam | Dam | 315 | Belmont | 40 09 18 N | 081 06 35 W |
| B & O Railroad Pond Dam | Reservoir | 290 | Belmont | 40 09 18 N | 081 06 35 W |
| Badgertown | Populated Place | 321 | Belmont | 40 01 47 N | 081 04 55 W |
| Baileys Mills | Populated Place | 288 | Belmont | 39 57 21 N | 081 13 43 W |
| Baileys Mills Post Office (historical) | Post Office | 288 | Belmont | 39 57 20 N | 081 13 44 W |
| Bannock | Populated Place | 305 | Belmont | 40 05 55 N | 080 58 37 W |
| Bannock Heliport | Airport | 337 | Belmont | 40 06 25 N | 080 58 31 W |
| Bannock Post Office | Post Office | 300 | Belmont | 40 05 55 N | 080 58 39 W |
| Barkcamp Creek | Stream | | Belmont | 40 01 42 N | 081 00 28 W |
| Barnesville | Populated Place | 387 | Belmont | 39 59 17 N | 081 10 35 W |
| Barnesville Catholic Cemetery | Cemetery | 390 | Belmont | 39 58 53 N | 081 10 55 W |
| Barnesville Church of the Nazarene | Church | 391 | Belmont | 39 59 11 N | 081 10 29 W |
| Barnesville Elementary School | School | 390 | Belmont | 39 59 20 N | 081 10 43 W |
| Barnesville Health Care Center | Hospital | 392 | Belmont | 39 59 05 N | 081 11 03 W |
| Barnesville High School | School | 392 | Belmont | 39 59 14 N | 081 09 28 W |
| Barnesville Historic District | Park | 384 | Belmont | 39 59 16 N | 081 10 39 W |
| Barnesville Hospital | Hospital | 387 | Belmont | 39 59 34 N | 081 11 21 W |
| Barnesville Lake | Reservoir | 340 | Belmont | 39 59 54 N | 081 10 53 W |
| Barnesville Lake Dam | Dam | 340 | Belmont | 39 59 54 N | 081 10 53 W |
| Barnesville Medical Center | Hospital | 384 | Belmont | 39 59 35 N | 081 11 24 W |
| Barnesville Memorial Park | Park | 379 | Belmont | 39 59 47 N | 081 10 46 W |
| Barnesville Middle School | School | 389 | Belmont | 39 59 22 N | 081 10 46 W |
| Barnesville Post Office | Post Office | 389 | Belmont | 39 59 18 N | 081 10 34 W |
| Barnesville Reservoir | Reservoir | 350 | Belmont | 39 58 15 N | 081 09 20 W |
| Barnesville Reservoir | Reservoir | 379 | Belmont | 39 57 54 N | 081 10 59 W |
| Barnesville Reservoir Number One Dam | Dam | 352 | Belmont | 39 57 54 N | 081 09 59 W |
| Barnesville Reservoir Number Three | Reservoir | 323 | Belmont | 39 54 30 N | 081 09 35 W |
| Barnesville Reservoir Number Three Dam | Dam | 323 | Belmont | 39 54 30 N | 081 09 35 W |
| Barnesville Reservoir Number Two | Reservoir | 341 | Belmont | 39 58 18 N | 081 09 53 W |
| Barnesville Reservoir Number Two Dam | Dam | 341 | Belmont | 39 58 18 N | 081 09 53 W |
| Barnesville-Bradfield Airport | Airport | 389 | Belmont | 40 00 08 N | 081 11 30 W |
| Barton | Populated Place | 243 | Belmont | 40 06 26 N | 080 50 28 W |
| Barton Cemetery | Cemetery | 375 | Belmont | 40 06 49 N | 080 49 46 W |
| Barton Elementary School (historical) | School | 264 | Belmont | 40 06 20 N | 080 50 51 W |
| Barton Post Office | Post Office | 241 | Belmont | 40 06 25 N | 080 50 29 W |
| Becket (historical) | Populated Place | 363 | Belmont | 39 56 53 N | 080 55 18 W |
| Bellaire | Populated Place | 202 | Belmont | 40 00 58 N | 080 44 32 W |
| Bellaire Cemetery | Cemetery | 379 | Belmont | 39 59 45 N | 080 46 00 W |
| Bellaire City Hospital | Hospital | 218 | Belmont | 40 01 47 N | 080 44 27 W |
| Bellaire City Water Works | Building | 195 | Belmont | 40 01 08 N | 080 44 22 W |
| Bellaire Heliport | Airport | 197 | Belmont | 40 01 58 N | 080 44 06 W |
| Bellaire High School | School | 202 | Belmont | 40 01 03 N | 080 44 31 W |
| Bellaire Post Office | Post Office | 201 | Belmont | 40 00 57 N | 080 44 42 W |
| Belmont | Populated Place | 363 | Belmont | 40 01 45 N | 081 02 20 W |
| Belmont Cemetery | Cemetery | 383 | Belmont | 39 59 20 N | 080 50 17 W |
| Belmont County | Civil | 356 | Belmont | 40 00 01 N | 080 57 59 W |
| Belmont County Childrens Home | Locale | 397 | Belmont | 39 59 58 N | 081 08 41 W |
| Belmont County Courthouse | Building | 390 | Belmont | 40 04 51 N | 080 54 04 W |
| Belmont County Home | Building | 375 | Belmont | 40 04 43 N | 080 58 07 W |
| Belmont County Law Library | Building | 390 | Belmont | 40 04 51 N | 080 54 04 W |
| Belmont County Museum | Building | 396 | Belmont | 39 59 32 N | 081 10 37 W |
| Belmont Elementary School | School | 360 | Belmont | 40 01 33 N | 081 02 29 W |
| Belmont Hills Country Club | Locale | 397 | Belmont | 40 04 18 N | 080 56 26 W |
| Belmont Historic District | Park | 365 | Belmont | 40 01 45 N | 081 02 24 W |
| Belmont Lake | Reservoir | 333 | Belmont | 40 02 00 N | 081 00 35 W |
| Belmont Lake Dam | Dam | 334 | Belmont | 40 02 00 N | 081 00 35 W |
| Belmont Lake State Reserve | Park | 349 | Belmont | 40 02 34 N | 081 00 51 W |
| Belmont Memorial Park | Cemetery | 387 | Belmont | 40 03 51 N | 080 50 06 W |
| Belmont Post Office | Post Office | 364 | Belmont | 40 01 45 N | 081 02 19 W |
| Belmont Ridge | Populated Place | 355 | Belmont | 40 09 57 N | 081 10 47 W |
| Belmont Ridge Cemetery | Cemetery | 351 | Belmont | 40 09 55 N | 081 10 47 W |
| Belmont Ridge Methodist Episcopal Church | Church | 353 | Belmont | 40 09 56 N | 081 10 47 W |
| Belmont Town Cemetery | Cemetery | 356 | Belmont | 40 01 41 N | 081 02 12 W |
| Belmont United Church | Church | 384 | Belmont | 39 59 22 N | 080 50 16 W |
| Bend Fork | Stream | | Belmont | 39 55 03 N | 080 57 35 W |