Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Township of Hamlin | Civil | 408 | Audubon | 41 38 34 N | 094 55 02 W |
| Township of Leroy | Civil | 438 | Audubon | 41 43 50 N | 094 55 14 W |
| Township of Lincoln | Civil | 409 | Audubon | 41 49 15 N | 095 01 58 W |
| Township of Melville | Civil | 410 | Audubon | 41 43 58 N | 094 45 03 W |
| Township of Oakfield | Civil | 386 | Audubon | 41 33 14 N | 094 59 05 W |
| Township of Sharon | Civil | 391 | Audubon | 41 38 43 N | 095 01 55 W |
| Township of Viola | Civil | 427 | Audubon | 41 49 13 N | 094 48 11 W |
| Trinity Lutheran Church | Church | 410 | Audubon | 41 48 05 N | 094 59 56 W |
| Viola Center | Populated Place | 440 | Audubon | 41 48 21 N | 094 48 08 W |
| Viola Center Cemetery | Cemetery | 446 | Audubon | 41 49 25 N | 094 48 07 W |
| Viola Center Post Office (historical) | Post Office | 440 | Audubon | 41 48 21 N | 094 48 08 W |
| West Central Cooperative Elevator | Locale | 373 | Audubon | 41 35 29 N | 094 53 19 W |
| Wiemann Area | Park | 442 | Audubon | 41 38 45 N | 094 57 21 W |
| Anderson Park | Park | 241 | Benton | 42 09 35 N | 092 00 59 W |
| Assembly of God Church | Church | 250 | Benton | 42 09 32 N | 092 01 42 W |
| Atkins | Populated Place | 260 | Benton | 41 59 49 N | 091 51 44 W |
| Atkins (historical) | Locale | 256 | Benton | 41 59 52 N | 091 51 51 W |
| Atkins City Hall | Building | 259 | Benton | 41 59 46 N | 091 51 36 W |
| Atkins Fire Department | Building | 258 | Benton | 41 59 50 N | 091 51 39 W |
| Atkins Library | Building | 262 | Benton | 41 59 48 N | 091 51 43 W |
| Atkins Memorial Union Hall | Building | 262 | Benton | 41 59 48 N | 091 51 43 W |
| Atkins Post Office | Post Office | 262 | Benton | 41 59 48 N | 091 51 43 W |
| Atkins Roundhouse Area | Park | 269 | Benton | 41 59 50 N | 091 50 36 W |
| Barnets Cutoff | Bend | 236 | Benton | 42 13 27 N | 092 03 07 W |
| Barnets Island | Island | 238 | Benton | 42 14 23 N | 092 02 49 W |
| Beal Cemetery | Cemetery | 290 | Benton | 41 53 25 N | 092 15 15 W |
| Bear Creek | Stream | | Benton | 42 14 56 N | 092 01 34 W |
| Bear Creek | Stream | | Benton | 42 04 36 N | 091 46 48 W |
| Bear Creek Cemetery | Cemetery | 253 | Benton | 42 16 14 N | 091 58 46 W |
| Bellar Cemetery | Cemetery | 265 | Benton | 42 06 60 N | 092 01 01 W |
| Belle Plaine | Locale | 250 | Benton | 41 53 44 N | 092 16 33 W |
| Belle Plaine | Populated Place | 252 | Benton | 41 53 49 N | 092 16 42 W |
| Belle Plaine Care Center | Hospital | 258 | Benton | 41 53 58 N | 092 15 55 W |
| Belle Plaine City Hall | Building | 253 | Benton | 41 53 48 N | 092 16 35 W |
| Belle Plaine Community Library | Building | 254 | Benton | 41 53 48 N | 092 16 29 W |
| Belle Plaine Country Club | Locale | 261 | Benton | 41 54 15 N | 092 16 06 W |
| Belle Plaine Fire Station | Building | 247 | Benton | 41 53 50 N | 092 16 53 W |
| Belle Plaine Municipal Airport | Airport | 233 | Benton | 41 52 40 N | 092 16 39 W |
| Belle Plaine Police Department | Building | 253 | Benton | 41 53 48 N | 092 16 35 W |
| Belle Plaine Post Office | Post Office | 257 | Benton | 41 53 50 N | 092 16 23 W |
| Belle Plaine Senior High School | School | 250 | Benton | 41 53 20 N | 092 16 08 W |
| Bender Cemetery | Cemetery | 285 | Benton | 42 02 11 N | 092 09 14 W |
| Benton | Locale | 281 | Benton | 42 06 05 N | 092 17 57 W |
| Benton Centre | Locale | 296 | Benton | 42 02 36 N | 092 05 12 W |
| Benton Centre Post Office (historical) | Post Office | 295 | Benton | 42 02 30 N | 092 05 12 W |
| Benton City (historical) | Populated Place | 229 | Benton | 42 09 30 N | 091 56 02 W |
| Benton City Fry Recreation Area | Park | 247 | Benton | 42 09 44 N | 091 55 05 W |
| Benton City Post Office (historical) | Post Office | 232 | Benton | 42 09 30 N | 091 55 51 W |
| Benton Community High School | School | 290 | Benton | 42 00 45 N | 092 05 13 W |
| Benton County | Civil | 279 | Benton | 42 04 00 N | 092 04 01 W |
| Benton County Courthouse | Building | 240 | Benton | 42 10 05 N | 092 01 25 W |
| Benton County Fairgrounds | Locale | 243 | Benton | 42 09 16 N | 092 01 21 W |
| Benton County Home | Building | 263 | Benton | 42 09 08 N | 091 59 29 W |
| Benton County Sheriff Office | Building | 240 | Benton | 42 10 05 N | 092 01 24 W |
| Benton County Speedway | Locale | 243 | Benton | 42 09 16 N | 092 01 21 W |
| Benton Elementary School | School | 261 | Benton | 41 59 40 N | 091 51 58 W |
| Benton Station (historical) | Populated Place | 273 | Benton | 42 08 43 N | 092 08 41 W |
| Bethlehem Evangelical Lutheran Church | Church | 249 | Benton | 42 09 32 N | 092 01 40 W |
| Big Grove Townhall | Building | 269 | Benton | 42 04 53 N | 092 07 27 W |
| Big Grove Wildlife Area | Park | 296 | Benton | 42 02 60 N | 092 05 09 W |
| Bishop Grove Cemetery | Cemetery | 293 | Benton | 42 05 12 N | 092 10 57 W |
| Blairstown | Locale | 256 | Benton | 41 54 34 N | 092 05 03 W |
| Blairstown | Populated Place | 256 | Benton | 41 54 34 N | 092 05 04 W |
| Blairstown City Hall | Building | 256 | Benton | 41 54 15 N | 092 05 02 W |
| Blairstown Fire Station | Building | 258 | Benton | 41 54 32 N | 092 05 03 W |
| Blairstown Post Office | Post Office | 256 | Benton | 41 54 15 N | 092 05 02 W |
| Blairstown Public Library | Building | 259 | Benton | 41 54 32 N | 092 05 05 W |
| Blairstown Schools | School | 258 | Benton | 41 54 25 N | 092 04 56 W |
| Bruce Townhall | Building | 278 | Benton | 42 15 16 N | 092 14 26 W |
| Buckeye | Locale | 256 | Benton | 41 53 58 N | 092 13 39 W |
| Buffalo Creek | Stream | | Benton | 41 54 27 N | 092 02 51 W |
| Burke Post Office (historical) | Post Office | 250 | Benton | 42 16 45 N | 091 58 57 W |
| Calvary Catholic Cemetery | Cemetery | 273 | Benton | 41 57 51 N | 092 06 51 W |
| Calvary United Methodist Church | Church | 264 | Benton | 41 54 27 N | 092 05 07 W |
| Carlisle Grove Cemetery | Cemetery | 305 | Benton | 42 10 23 N | 092 08 20 W |
| Central Elementary School | School | 265 | Benton | 41 53 59 N | 092 16 33 W |
| Central Lutheran School | School | 265 | Benton | 41 59 35 N | 091 58 26 W |
| Central Presbyterian Church | Church | 269 | Benton | 41 59 37 N | 091 58 11 W |
| Cheney | Populated Place | 279 | Benton | 42 15 15 N | 091 55 39 W |
| Christian Church | Church | 276 | Benton | 42 13 20 N | 091 52 51 W |
| Christian Fellowship Church | Church | 245 | Benton | 41 53 40 N | 092 16 41 W |
| City of Belle Plaine | Civil | 254 | Benton | 41 53 48 N | 092 16 28 W |
| City of Shellsburg | Civil | 235 | Benton | 42 05 35 N | 091 52 11 W |
| City of Vinton | Civil | 244 | Benton | 42 09 51 N | 092 01 38 W |
| Clover Ridge United Methodist Church | Church | 246 | Benton | 41 52 44 N | 091 50 05 W |
| Country Aire Home Park | Populated Place | 259 | Benton | 41 59 45 N | 091 52 21 W |
| Cox Cemetery | Cemetery | 265 | Benton | 42 11 57 N | 091 54 38 W |
| Daggett Post Office (historical) | Post Office | 262 | Benton | 42 08 15 N | 092 08 31 W |
| Dudgeon Lake State Wildlife Mgt Area | Park | 236 | Benton | 42 11 35 N | 092 01 54 W |
| East Bluff | Cliff | 271 | Benton | 42 09 43 N | 091 58 60 W |
| East Gate Mall | Building | 251 | Benton | 41 53 55 N | 092 15 56 W |
| East School | School | 243 | Benton | 42 09 58 N | 092 01 20 W |
| Eden | Populated Place | 261 | Benton | 42 06 33 N | 091 58 11 W |
| Eden Townhall | Building | 281 | Benton | 42 04 33 N | 092 00 35 W |
| Eden Township Wildlife Area | Park | 279 | Benton | 42 04 57 N | 092 02 11 W |
| Engledow Cemetery | Cemetery | 272 | Benton | 42 16 07 N | 092 07 59 W |
| Evergreen Cemetery | Cemetery | 251 | Benton | 42 09 40 N | 092 00 33 W |
| Fairview Cemetery | Cemetery | 292 | Benton | 42 12 51 N | 092 12 04 W |
| Faith Baptist Church | Church | 242 | Benton | 41 53 10 N | 092 16 06 W |
| Faith Independent Baptist Church | Church | 247 | Benton | 42 09 44 N | 092 01 46 W |
| Fellowship Brethren Church | Church | 267 | Benton | 42 08 44 N | 092 08 50 W |
| First Baptist Church | Church | 243 | Benton | 42 09 55 N | 092 01 29 W |
| First Christian Church | Church | 249 | Benton | 42 09 36 N | 092 02 19 W |
| First Congregational Church | Church | 260 | Benton | 41 53 54 N | 092 16 37 W |
| First Eden Cemetery | Cemetery | 271 | Benton | 42 06 33 N | 091 59 04 W |
| First Presbyterian Church | Church | 243 | Benton | 42 05 40 N | 091 52 01 W |
| Fix Cemetery | Cemetery | 250 | Benton | 42 01 10 N | 091 55 31 W |
| Garrison | Populated Place | 268 | Benton | 42 08 39 N | 092 08 38 W |
| Garrison (historical) | Locale | 265 | Benton | 42 08 35 N | 092 08 41 W |
| Garrison Cemetery | Cemetery | 276 | Benton | 42 08 13 N | 092 08 55 W |