Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Abner Hollow Cincinnati Museum of Natural History Nature Preserve | Park | 216 | Adams | 38 43 26 N | 083 25 56 W |
| Acacia School (historical) | School | 170 | Adams | 38 39 12 N | 083 41 03 W |
| Adams County | Civil | 262 | Adams | 38 51 00 N | 083 28 00 W |
| Adams County Hospital | Hospital | 300 | Adams | 38 47 39 N | 083 32 08 W |
| Adams County Hospital Heliport | Airport | 305 | Adams | 38 47 40 N | 083 32 05 W |
| Adams Lake | Reservoir | 232 | Adams | 38 48 48 N | 083 30 60 W |
| Adams Lake Dam | Dam | 232 | Adams | 38 48 48 N | 083 30 60 W |
| Adams Lake State Reserve | Park | 236 | Adams | 38 48 51 N | 083 31 36 W |
| Adas Run | Stream | | Adams | 38 47 50 N | 083 40 03 W |
| Aikens Cemetery | Cemetery | 360 | Adams | 38 53 24 N | 083 18 51 W |
| Alex Run | Stream | | Adams | 38 40 08 N | 083 25 23 W |
| Alexander Salamon Airport | Airport | 267 | Adams | 38 51 05 N | 083 33 58 W |
| Andrews School (historical) | School | 231 | Adams | 39 00 42 N | 083 24 33 W |
| Antioch Cemetery | Cemetery | 205 | Adams | 38 51 32 N | 083 19 06 W |
| Antioch Church | Church | 208 | Adams | 38 51 32 N | 083 19 05 W |
| Antioch School (historical) | School | 203 | Adams | 38 51 32 N | 083 19 07 W |
| Asher Run | Stream | | Adams | 38 41 13 N | 083 26 35 W |
| Bacon Flat | Populated Place | 238 | Adams | 38 57 42 N | 083 21 46 W |
| Bacon Flat School (historical) | School | 238 | Adams | 38 57 42 N | 083 21 46 W |
| Baker Fork | Stream | | Adams | 39 02 05 N | 083 26 05 W |
| Beasley Fork | Populated Place | 175 | Adams | 38 44 59 N | 083 30 59 W |
| Beasley Fork | Stream | | Adams | 38 44 07 N | 083 28 18 W |
| Beasley Fork Chapel | Church | 165 | Adams | 38 44 37 N | 083 29 40 W |
| Beasley Fork School (historical) | School | 161 | Adams | 38 44 23 N | 083 29 01 W |
| Beasleys Fork Post Office (historical) | Post Office | 175 | Adams | 38 44 59 N | 083 30 59 W |
| Beaver Pond | Populated Place | 227 | Adams | 38 56 22 N | 083 20 47 W |
| Beaverpond Post Office (historical) | Post Office | 227 | Adams | 38 56 22 N | 083 20 47 W |
| Beech Fork School (historical) | School | 236 | Adams | 38 52 20 N | 083 17 17 W |
| Behm Mountain | Summit | 305 | Adams | 38 50 21 N | 083 20 59 W |
| Bentonville | Populated Place | 279 | Adams | 38 44 58 N | 083 36 48 W |
| Bentonville Cemetery | Cemetery | 280 | Adams | 38 44 31 N | 083 37 09 W |
| Bentonville Church | Church | 280 | Adams | 38 44 32 N | 083 37 09 W |
| Bentonville Elementary School | School | 281 | Adams | 38 44 52 N | 083 36 55 W |
| Bentonville Post Office | Post Office | 279 | Adams | 38 44 58 N | 083 36 48 W |
| Bethlehem Church | Church | 305 | Adams | 38 51 51 N | 083 41 05 W |
| Bettys Creek | Stream | | Adams | 38 59 19 N | 083 20 04 W |
| Big Run | Stream | | Adams | 38 58 43 N | 083 16 39 W |
| Big Run | Stream | | Adams | 38 56 40 N | 083 29 32 W |
| Bissinger Cemetery | Cemetery | 274 | Adams | 38 48 21 N | 083 39 10 W |
| Black Walnut Fork Stout Creek | Stream | | Adams | 38 42 57 N | 083 22 11 W |
| Blackburn Ridge | Ridge | 342 | Adams | 38 39 15 N | 083 18 13 W |
| Blacks Run | Stream | | Adams | 38 43 26 N | 083 27 14 W |
| Bloomhuff School (historical) | School | 282 | Adams | 38 42 38 N | 083 41 05 W |
| Blue Creek | Populated Place | 208 | Adams | 38 46 39 N | 083 19 49 W |
| Blue Creek | Stream | | Adams | 38 46 25 N | 083 20 07 W |
| Blue Creek Post Office | Post Office | 194 | Adams | 38 46 40 N | 083 19 57 W |
| Blue Creek Post Office (historical) | Post Office | 208 | Adams | 38 46 39 N | 083 19 49 W |
| Blue Creek School (historical) | School | 236 | Adams | 38 44 56 N | 083 21 09 W |
| Bolander Run | Stream | | Adams | 38 44 32 N | 083 18 40 W |
| Bond Hollow | Valley | | Adams | 38 39 19 N | 083 19 18 W |
| Bradford Cemetery | Cemetery | 166 | Adams | 38 38 14 N | 083 40 15 W |
| Bradford Cemetery | Cemetery | 159 | Adams | 38 38 33 N | 083 41 04 W |
| Bradford Landing | Locale | 149 | Adams | 38 37 50 N | 083 40 54 W |
| Bradford Run | Stream | | Adams | 38 40 39 N | 083 37 47 W |
| Bradfords Landing | Locale | 149 | Adams | 38 38 20 N | 083 19 44 W |
| Bradysville | Populated Place | 225 | Adams | 38 41 43 N | 083 40 14 W |
| Bradyville Post Office (historical) | Post Office | 225 | Adams | 38 41 43 N | 083 40 14 W |
| Brier Ridge | Ridge | 289 | Adams | 38 46 29 N | 083 39 56 W |
| Brier Ridge Church | Church | 282 | Adams | 38 46 44 N | 083 40 23 W |
| Brier Ridge School (historical) | School | 282 | Adams | 38 46 44 N | 083 40 21 W |
| Brush Creek Baptist Church | Church | 260 | Adams | 38 51 57 N | 083 24 09 W |
| Brush Creek Cemetery | Cemetery | 261 | Adams | 38 52 01 N | 083 24 13 W |
| Buck Run | Stream | | Adams | 38 57 54 N | 083 34 05 W |
| Buck Run (historical) | Populated Place | 242 | Adams | 38 59 08 N | 083 34 47 W |
| Buck Run Post Office (historical) | Post Office | 242 | Adams | 38 59 08 N | 083 34 47 W |
| Buck Run School (historical) | School | 245 | Adams | 38 59 15 N | 083 34 48 W |
| Buckeye School (historical) | School | 269 | Adams | 38 52 42 N | 083 34 35 W |
| Bundle Run | Stream | | Adams | 38 53 36 N | 083 26 45 W |
| Bunker Hill School (historical) | School | 287 | Adams | 38 50 35 N | 083 38 17 W |
| Burba Cemetery | Cemetery | 304 | Adams | 39 00 34 N | 083 39 41 W |
| Burns Chapel | Church | 222 | Adams | 38 59 43 N | 083 18 26 W |
| Burr Hill | Summit | 342 | Adams | 38 45 56 N | 083 24 16 W |
| Burr Run | Stream | | Adams | 38 46 33 N | 083 23 20 W |
| Buttermilk Fork Churn Creek | Stream | | Adams | 38 43 58 N | 083 18 00 W |
| Buzzardroost Creek | Stream | | Adams | 38 37 45 N | 083 40 27 W |
| Buzzardroost Rock | Pillar | 298 | Adams | 38 45 57 N | 083 27 03 W |
| Cabbage Patch Hollow | Valley | | Adams | 38 39 41 N | 083 17 35 W |
| Calvary School (historical) | School | 287 | Adams | 39 00 02 N | 083 36 38 W |
| Caraway School (historical) | School | 186 | Adams | 38 47 41 N | 083 18 54 W |
| Carey Hill | Summit | 323 | Adams | 38 55 44 N | 083 17 41 W |
| Carrs Landing | Locale | 151 | Adams | 38 38 34 N | 083 38 35 W |
| Carson Hill | Summit | 329 | Adams | 38 54 55 N | 083 37 46 W |
| Carter Hollow | Valley | | Adams | 38 38 29 N | 083 39 11 W |
| Carter Run | Stream | | Adams | 38 43 22 N | 083 17 18 W |
| Cassel Cemetery | Cemetery | 250 | Adams | 38 47 53 N | 083 21 08 W |
| Cassel Run | Stream | | Adams | 38 48 01 N | 083 18 52 W |
| Cassel Run | Stream | | Adams | 38 48 01 N | 083 18 54 W |
| Cassel School (historical) | School | 225 | Adams | 38 47 54 N | 083 20 37 W |
| Catbird | Populated Place | 253 | Adams | 38 44 14 N | 083 33 17 W |
| Catbird School (historical) | School | 255 | Adams | 38 44 13 N | 083 33 22 W |
| Cattail Run | Stream | | Adams | 38 40 01 N | 083 23 03 W |
| Cave Hill | Summit | 338 | Adams | 38 51 00 N | 083 36 08 W |
| Cave Hollow | Valley | | Adams | 38 44 08 N | 083 26 50 W |
| Cave Run | Stream | | Adams | 38 50 27 N | 083 29 27 W |
| Cedar College School (historical) | School | 167 | Adams | 38 44 20 N | 083 27 60 W |
| Cedar Falls | Falls | 212 | Adams | 38 50 12 N | 083 22 32 W |
| Cedar Fork | Stream | | Adams | 38 57 41 N | 083 20 08 W |
| Cedar Fork Cemetery | Cemetery | 250 | Adams | 38 55 24 N | 083 21 46 W |
| Cedar Fork Church | Church | 249 | Adams | 38 55 21 N | 083 21 45 W |
| Cedar Grove Church | Church | 240 | Adams | 38 46 21 N | 083 24 31 W |
| Cedar Mills | Populated Place | 173 | Adams | 38 49 23 N | 083 23 34 W |
| Cedar Mills Church | Church | 172 | Adams | 38 49 12 N | 083 23 45 W |
| Cedar Mills Elementary School | School | 174 | Adams | 38 49 21 N | 083 23 40 W |
| Cedar Mills Post Office (historical) | Post Office | 173 | Adams | 38 49 23 N | 083 23 34 W |
| Cedar Run | Stream | | Adams | 38 48 39 N | 083 24 60 W |
| Cedar School (historical) | School | 238 | Adams | 38 49 57 N | 083 23 48 W |
| Centenary Methodist Episcopal Church (historical) | Church | 155 | Adams | 38 41 18 N | 083 36 37 W |
| Chaparral Cemetery | Cemetery | 298 | Adams | 38 50 13 N | 083 35 56 W |
| Chaparral Prairie Nature Preserve | Park | 281 | Adams | 38 50 20 N | 083 34 30 W |
| Chaparral School (historical) | School | 297 | Adams | 38 50 13 N | 083 36 01 W |