Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Brook Mount | Populated Place | 435 | Sac | 42 23 08 N | 095 15 52 W |
| Brook Park | Park | 297 | Lucas | 41 00 40 N | 093 17 52 W |
| Brook Street Park | Park | 180 | Muscatine | 41 25 43 N | 091 02 04 W |
| Brookdale | Populated Place | 396 | Plymouth | 42 34 07 N | 096 26 56 W |
| Brooke Creek | Stream | | Buena Vista | 42 52 55 N | 095 18 07 W |
| Brooke Creek Bridge | Bridge | 396 | Buena Vista | 42 51 04 N | 095 17 36 W |
| Brookfield Wildlife Refuge | Park | 224 | Clinton | 42 00 50 N | 090 39 55 W |
| Brookhaven Nursing Home | Hospital | 262 | Poweshiek | 41 44 22 N | 092 26 41 W |
| Brooklyn | Locale | 260 | Poweshiek | 41 43 42 N | 092 26 44 W |
| Brooklyn | Populated Place | 278 | Poweshiek | 41 44 01 N | 092 26 44 W |
| Brooklyn Elementary School | School | 276 | Poweshiek | 41 43 59 N | 092 26 28 W |
| Brooklyn Elevator Company Elevator | Locale | 251 | Poweshiek | 41 38 55 N | 092 20 34 W |
| Brooklyn Elevator Incorporated Elevator | Locale | 260 | Poweshiek | 41 43 42 N | 092 26 47 W |
| Brooklyn Library | Building | 275 | Poweshiek | 41 43 51 N | 092 26 46 W |
| Brooklyn Medical Clinic | Hospital | 266 | Poweshiek | 41 43 46 N | 092 26 44 W |
| Brooklyn Post Office | Post Office | 260 | Poweshiek | 41 43 42 N | 092 26 46 W |
| Brooklyn Post Office (historical) | Post Office | 342 | Madison | 41 12 20 N | 093 55 11 W |
| Brooklyn Post Office (historical) | Post Office | 259 | Poweshiek | 41 44 30 N | 092 25 11 W |
| Brooklyn-Guersney-Malcom Junior-Senior High School | School | 275 | Poweshiek | 41 44 18 N | 092 26 49 W |
| Brooklyn-Victor Country Club | Locale | 285 | Poweshiek | 41 43 12 N | 092 23 02 W |
| Brooks | Locale | 336 | Adams | 40 57 48 N | 094 48 19 W |
| Brooks | Populated Place | 347 | Adams | 40 57 55 N | 094 48 18 W |
| Brooks Beach | Beach | 426 | Dickinson | 43 23 10 N | 095 07 30 W |
| Brooks Cemetery | Cemetery | 367 | Adams | 40 58 22 N | 094 47 44 W |
| Brooks Cemetery | Cemetery | 216 | Henry | 40 55 19 N | 091 26 46 W |
| Brooks Cemetery | Cemetery | 233 | Jefferson | 41 03 49 N | 092 04 11 W |
| Brooks Cemetery | Cemetery | 251 | Keokuk | 41 10 53 N | 092 20 16 W |
| Brooks Cemetery | Cemetery | 254 | Wapello | 41 00 14 N | 092 32 06 W |
| Brooks Country Club | Locale | 439 | Dickinson | 43 23 14 N | 095 07 43 W |
| Brooks Methodist Church | Church | 349 | Adams | 40 57 56 N | 094 48 21 W |
| Brooks Post Office (historical) | Post Office | 347 | Adams | 40 57 55 N | 094 48 18 W |
| Brooks School | School | 246 | Polk | 41 35 49 N | 093 34 42 W |
| Brookside Creek | Stream | | Clinton | 41 51 09 N | 090 14 44 W |
| Brookside Golf Club | Locale | 374 | Plymouth | 42 35 05 N | 095 57 54 W |
| Brookside Park | Park | 274 | Story | 42 01 44 N | 093 37 59 W |
| Brookville | Populated Place | 238 | Jefferson | 41 03 20 N | 092 05 21 W |
| Brookville (historical) | Locale | 238 | Jefferson | 41 03 20 N | 092 05 21 W |
| Brookville Post Office (historical) | Post Office | 238 | Jefferson | 41 03 20 N | 092 05 21 W |
| Brookwood Park | Park | 273 | Bremer | 42 43 15 N | 092 27 41 W |
| Brophy Creek | Stream | | Clinton | 41 45 51 N | 090 26 47 W |
| Brough | Locale | 317 | Dallas | 41 44 46 N | 094 14 46 W |
| Brough Post Office (historical) | Post Office | 318 | Dallas | 41 44 46 N | 094 11 41 W |
| Brouhard Cemetery | Cemetery | 308 | Story | 42 06 40 N | 093 33 11 W |
| Browers Lake | Lake | 332 | Woodbury | 42 22 33 N | 096 20 58 W |
| Brown Branch | Stream | | Adams | 41 00 45 N | 094 39 40 W |
| Brown Bridge Access | Locale | 312 | Greene | 42 03 60 N | 094 32 21 W |
| Brown Cemetery | Cemetery | 351 | Clayton | 42 39 11 N | 091 12 02 W |
| Brown Cemetery | Cemetery | 245 | Davis | 40 39 03 N | 092 17 30 W |
| Brown Cemetery | Cemetery | 290 | Fremont | 40 40 46 N | 095 42 12 W |
| Brown Cemetery | Cemetery | 223 | Iowa | 41 48 13 N | 091 50 44 W |
| Brown Cemetery | Cemetery | 286 | Marshall | 42 04 60 N | 092 53 31 W |
| Brown Cemetery | Cemetery | 298 | Wayne | 40 51 11 N | 093 09 55 W |
| Brown Chiropractic Clinic | Hospital | 325 | Fayette | 42 40 41 N | 091 54 37 W |
| Brown Cottage Cemetery | Cemetery | 243 | Van Buren | 40 36 33 N | 092 08 59 W |
| Brown Creek | Stream | | Emmet | 43 22 48 N | 094 48 38 W |
| Brown Creek | Stream | | Wapello | 41 07 21 N | 092 35 22 W |
| Brown Deer Golf Course | Locale | 235 | Johnson | 41 41 50 N | 091 33 56 W |
| Brown Family Cemetery | Cemetery | 355 | Union | 41 03 00 N | 094 06 01 W |
| Brown Jug School | School | 337 | Wayne | 40 49 35 N | 093 29 55 W |
| Brown Post Office (historical) | Post Office | 215 | Clinton | 42 01 50 N | 090 29 57 W |
| Brown School | School | 290 | Buchanan | 42 36 44 N | 092 02 49 W |
| Brown School | School | 243 | Monroe | 41 07 27 N | 093 00 07 W |
| Brown School | School | 302 | Warren | 41 17 32 N | 093 32 16 W |
| Brown Truck Sales Airport | Airport | 391 | Taylor | 40 53 50 N | 094 47 28 W |
| Brownells Beach | Beach | 426 | Dickinson | 43 25 34 N | 095 10 28 W |
| Brownfield Creek | Stream | | Clayton | 42 39 57 N | 091 15 10 W |
| Brownie Park | Park | 281 | Warren | 41 28 35 N | 093 40 36 W |
| Browning Post Office (historical) | Post Office | 347 | Carroll | 42 11 17 N | 094 45 16 W |
| Brownlee Cemetery | Cemetery | 301 | Lucas | 41 06 12 N | 093 16 30 W |
| Browns | Populated Place | 215 | Clinton | 42 01 50 N | 090 29 57 W |
| Browns Bay | Bay | 426 | Dickinson | 43 21 04 N | 095 09 13 W |
| Browns Chapel | Church | 302 | Warren | 41 17 07 N | 093 32 18 W |
| Browns Ferry (historical) | Locale | 189 | Muscatine | 41 31 06 N | 091 08 33 W |
| Browns Lake | Lake | 229 | Polk | 41 27 37 N | 093 20 58 W |
| Browns Lake | Reservoir | 326 | Woodbury | 42 18 22 N | 096 20 19 W |
| Browns Lake - Bigelow Park | Park | 329 | Woodbury | 42 18 15 N | 096 19 30 W |
| Browns Lake/IPS Wildlife Management Area | Park | 326 | Woodbury | 42 18 60 N | 096 20 06 W |
| Browns Mills Post Office (historical) | Post Office | 211 | Davis | 40 52 45 N | 092 27 31 W |
| Browns Station | Locale | 205 | Clinton | 42 01 52 N | 090 28 28 W |
| Brownsville | Populated Place | 266 | Poweshiek | 41 30 45 N | 092 33 23 W |
| Brownville | Populated Place | 348 | Mitchell | 43 20 32 N | 092 40 34 W |
| Brownville Cemetery | Cemetery | 347 | Mitchell | 43 20 23 N | 092 40 23 W |
| Brownville Post Office (historical) | Post Office | 348 | Mitchell | 43 20 32 N | 092 40 34 W |
| Brownville Wildlife Area | Park | 349 | Mitchell | 43 20 10 N | 092 39 41 W |
| Brubaker Cemetery | Cemetery | 271 | Story | 41 53 05 N | 093 23 31 W |
| Brubaker-Hoelscher City Park | Park | 337 | Hardin | 42 18 18 N | 093 17 29 W |
| Bruce | Locale | 348 | Wright | 42 51 47 N | 093 49 52 W |
| Bruce Branch | Stream | | Adair | 41 23 13 N | 094 21 07 W |
| Bruce Creek | Stream | | Fayette | 42 40 23 N | 091 35 48 W |
| Bruce Jenner Sports Complex | Building | 338 | Decatur | 40 36 50 N | 093 55 29 W |
| Bruce Post Office (historical) | Post Office | 358 | Wright | 42 51 47 N | 093 46 31 W |
| Bruce Townhall | Building | 278 | Benton | 42 15 16 N | 092 14 26 W |
| Brucemore | Locale | 241 | Linn | 41 59 35 N | 091 38 26 W |
| Brucewell | Populated Place | 323 | Decatur | 40 38 45 N | 093 38 16 W |
| Bruegmann Park | Park | 415 | Clay | 43 11 19 N | 095 23 12 W |
| Bruegmann Rea Access | Locale | 419 | O'Brien | 43 11 24 N | 095 23 19 W |
| Bruening Cemetery | Cemetery | 377 | Union | 40 54 20 N | 094 24 27 W |
| Bruggeman County Park | Park | 287 | Black Hawk | 42 35 50 N | 092 07 06 W |
| Brumsey Cemetery | Cemetery | 234 | Wapello | 41 00 35 N | 092 16 01 W |
| Bruner Post Office (historical) | Post Office | 288 | Tama | 42 02 05 N | 092 36 56 W |
| Brunnier Art Museum | Building | 274 | Story | 42 01 17 N | 093 38 12 W |
| Brunsville | Populated Place | 386 | Plymouth | 42 48 35 N | 096 16 09 W |
| Brunsville (historical) | Locale | 385 | Plymouth | 42 48 33 N | 096 16 17 W |
| Brunsville Post Office | Post Office | 386 | Plymouth | 42 48 35 N | 096 16 09 W |
| Bruntlett Elevator | Locale | 348 | Webster | 42 17 15 N | 094 17 36 W |
| Brush College School | School | 206 | Des Moines | 40 46 30 N | 091 09 40 W |
| Brush College School | School | 282 | Lucas | 41 08 46 N | 093 13 36 W |
| Brush Creek | Stream | | Appanoose | 40 39 07 N | 092 46 19 W |
| Brush Creek | Stream | | Clarke | 41 00 11 N | 093 33 39 W |
| Brush Creek | Stream | | Decatur | 40 54 50 N | 093 33 03 W |