Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Ainsworth Beach | Beach | 427 | Dickinson | 43 26 45 N | 095 05 51 W |
| Ainsworth Cemetery | Cemetery | 228 | Washington | 41 17 40 N | 091 33 45 W |
| Ainsworth Community Church | Church | 223 | Washington | 41 17 24 N | 091 33 13 W |
| Ainsworth Community Presbyterian Church | Church | 224 | Washington | 41 17 26 N | 091 33 13 W |
| Ainsworth Elementary School | School | 225 | Washington | 41 17 31 N | 091 33 41 W |
| Ainsworth Fire Department | Building | 209 | Washington | 41 17 20 N | 091 32 59 W |
| Ainsworth Post Office | Post Office | 215 | Washington | 41 17 20 N | 091 33 01 W |
| Ainsworth Town Hall | Building | 209 | Washington | 41 17 20 N | 091 32 59 W |
| Airport Lake Park | Park | 355 | Chickasaw | 43 05 20 N | 092 20 51 W |
| Airport National Public Golf Complex | Locale | 229 | Linn | 41 53 20 N | 091 37 11 W |
| Airport Okoboji | Airport | 437 | Dickinson | 43 22 15 N | 095 07 33 W |
| Airpower Museum | Building | 256 | Wapello | 40 59 16 N | 092 29 03 W |
| Airpower Museum Library | Building | 256 | Wapello | 40 59 16 N | 092 29 03 W |
| Aitchison Residence Hall | Building | 265 | Dubuque | 42 29 50 N | 090 41 30 W |
| Ajax Post Office (historical) | Post Office | 256 | Davis | 40 41 00 N | 092 18 31 W |
| Ak Sar Ben Bridge | Bridge | 293 | Pottawattamie | 41 15 36 N | 095 55 18 W |
| Akerman Cemetery | Cemetery | 241 | Keokuk | 41 13 13 N | 092 21 39 W |
| Akron | Locale | 344 | Plymouth | 42 49 43 N | 096 33 41 W |
| Akron | Populated Place | 348 | Plymouth | 42 49 44 N | 096 33 34 W |
| Akron Chiropractic Center | Hospital | 349 | Plymouth | 42 49 43 N | 096 33 31 W |
| Akron City Convalescent Care | Hospital | 349 | Plymouth | 42 49 25 N | 096 33 36 W |
| Akron Country Club | Locale | 356 | Plymouth | 42 49 15 N | 096 33 26 W |
| Akron Dental Clinic | Hospital | 348 | Plymouth | 42 49 44 N | 096 33 34 W |
| Akron Family Practice Clinic | Hospital | 350 | Plymouth | 42 49 43 N | 096 33 29 W |
| Akron Municipal Airport | Airport | 371 | Plymouth | 42 48 21 N | 096 33 47 W |
| Akron Post Office | Post Office | 350 | Plymouth | 42 49 45 N | 096 33 26 W |
| Akron Public Library | Building | 351 | Plymouth | 42 49 42 N | 096 33 26 W |
| Akron Westfield Community School | School | 374 | Plymouth | 42 49 58 N | 096 32 59 W |
| Alan Shepard School | School | 242 | Scott | 41 41 56 N | 090 35 05 W |
| Alandale Park | Park | 236 | Linn | 41 57 26 N | 091 41 15 W |
| Albany | Populated Place | 284 | Fayette | 42 51 57 N | 091 45 32 W |
| Albany Cemetery | Cemetery | 275 | Appanoose | 40 53 30 N | 092 38 31 W |
| Albany Post Office (historical) | Post Office | 282 | Davis | 40 53 25 N | 092 38 19 W |
| Albany Trail | Trail | 317 | Fayette | 42 51 55 N | 091 46 19 W |
| Albaton | Populated Place | 326 | Monona | 42 11 08 N | 096 17 27 W |
| Albaton Post Office (historical) | Post Office | 326 | Monona | 42 11 08 N | 096 17 27 W |
| Albert City | Locale | 402 | Buena Vista | 42 46 55 N | 094 56 46 W |
| Albert City | Populated Place | 402 | Buena Vista | 42 46 55 N | 094 56 55 W |
| Albert City - Truesdale High School | School | 402 | Buena Vista | 42 46 59 N | 094 57 01 W |
| Albert City City Hall | Building | 402 | Buena Vista | 42 46 55 N | 094 56 55 W |
| Albert City Fire Department | Building | 402 | Buena Vista | 42 46 55 N | 094 56 55 W |
| Albert City Historical Museum | Building | 402 | Buena Vista | 42 46 60 N | 094 56 53 W |
| Albert City Post Office | Post Office | 402 | Buena Vista | 42 46 55 N | 094 56 55 W |
| Albert City Public Library | Building | 402 | Buena Vista | 42 46 52 N | 094 56 53 W |
| Albert the Bull Campground | Locale | 403 | Audubon | 41 42 50 N | 094 55 34 W |
| Albert the Bull Park | Park | 402 | Audubon | 41 42 50 N | 094 55 35 W |
| Albia | Locale | 293 | Monroe | 41 01 48 N | 092 48 41 W |
| Albia | Populated Place | 295 | Monroe | 41 01 36 N | 092 48 21 W |
| Albia Baptist Temple | Church | 294 | Monroe | 41 01 30 N | 092 48 20 W |
| Albia City Hall | Building | 295 | Monroe | 41 01 42 N | 092 48 25 W |
| Albia Country Club | Locale | 282 | Monroe | 41 01 58 N | 092 47 03 W |
| Albia Fire Department | Building | 293 | Monroe | 41 01 32 N | 092 48 36 W |
| Albia High School | School | 291 | Monroe | 41 01 47 N | 092 48 07 W |
| Albia Holiness Church of God | Church | 293 | Monroe | 41 01 26 N | 092 48 15 W |
| Albia Municipal Airport | Airport | 293 | Monroe | 40 59 40 N | 092 45 47 W |
| Albia Post Office | Post Office | 292 | Monroe | 41 01 36 N | 092 48 36 W |
| Albia Public Library | Building | 294 | Monroe | 41 01 39 N | 092 48 20 W |
| Albia Road Podiatry Clinic | Hospital | 198 | Wapello | 41 00 30 N | 092 26 04 W |
| Albia Road Southern Baptist Church | Church | 205 | Wapello | 41 00 35 N | 092 26 33 W |
| Albion | Locale | 283 | Marshall | 42 06 35 N | 092 59 38 W |
| Albion | Populated Place | 292 | Marshall | 42 06 45 N | 092 59 19 W |
| Albion Cemetery | Cemetery | 289 | Marshall | 42 06 15 N | 092 59 13 W |
| Albion Community Center | Building | 294 | Marshall | 42 06 53 N | 092 59 28 W |
| Albion Fire Station | Building | 293 | Marshall | 42 06 40 N | 092 59 24 W |
| Albion Municipal Library | Building | 293 | Marshall | 42 06 40 N | 092 59 24 W |
| Albion Post Office | Post Office | 292 | Marshall | 42 06 42 N | 092 59 26 W |
| Albion School (historical) | School | 399 | Howard | 43 26 39 N | 092 11 46 W |
| Albion Town Hall | Building | 294 | Marshall | 42 06 43 N | 092 59 24 W |
| Albion Townhall | Building | 382 | Howard | 43 26 37 N | 092 08 25 W |
| Albion Township Cemetery | Cemetery | 375 | Howard | 43 27 52 N | 092 07 48 W |
| Albion Township Cemetery | Cemetery | 378 | Howard | 43 27 40 N | 092 07 32 W |
| Albright Bridge | Bridge | 299 | Hamilton | 42 24 19 N | 093 48 36 W |
| Albrights Post Office (historical) | Post Office | 168 | Des Moines | 40 54 23 N | 091 03 21 W |
| Alburnett | Locale | 269 | Linn | 42 08 59 N | 091 37 05 W |
| Alburnett | Populated Place | 269 | Linn | 42 08 54 N | 091 37 07 W |
| Alburnett City Hall | Building | 269 | Linn | 42 08 52 N | 091 37 06 W |
| Alburnett High School | School | 271 | Linn | 42 08 60 N | 091 37 13 W |
| Alburnett Post Office | Post Office | 270 | Linn | 42 08 59 N | 091 37 08 W |
| Alburnett United Methodist Church | Church | 269 | Linn | 42 08 48 N | 091 37 08 W |
| Alcock Cemetery | Cemetery | 326 | Bremer | 42 51 49 N | 092 20 18 W |
| Alcock County Park | Park | 311 | Bremer | 42 52 55 N | 092 18 43 W |
| Alden | Locale | 339 | Hardin | 42 31 16 N | 093 22 29 W |
| Alden | Populated Place | 339 | Hardin | 42 31 13 N | 093 22 34 W |
| Alden Bridge | Bridge | 337 | Hardin | 42 31 15 N | 093 22 32 W |
| Alden Cemetery | Cemetery | 352 | Hardin | 42 31 22 N | 093 23 12 W |
| Alden City Hall | Building | 339 | Hardin | 42 31 11 N | 093 22 29 W |
| Alden Community School | School | 340 | Hardin | 42 31 04 N | 093 22 21 W |
| Alden Post Office | Post Office | 337 | Hardin | 42 31 15 N | 093 22 35 W |
| Alden River Access | Locale | 338 | Hardin | 42 31 15 N | 093 22 29 W |
| Alden Station (historical) | Populated Place | 357 | Hardin | 42 30 15 N | 093 22 51 W |
| Aldersgate United Methodist Church | Church | 278 | Polk | 41 37 37 N | 093 43 14 W |
| Alderson Hollow | Valley | | Clayton | 42 44 26 N | 091 29 28 W |
| Aldrich | Locale | 347 | Wright | 42 54 28 N | 093 55 51 W |
| Aldrich Creek | Stream | | Ida | 42 18 06 N | 095 36 59 W |
| Alegent Health - Glenwood Clinic | Hospital | 301 | Mills | 41 02 21 N | 095 44 49 W |
| Alegent Health Cancer Center | Hospital | 325 | Pottawattamie | 41 16 05 N | 095 50 24 W |
| Alegent Health Center | Hospital | 334 | Harrison | 41 44 12 N | 095 42 16 W |
| Alegent Health Center | Hospital | 350 | Harrison | 41 51 16 N | 095 35 57 W |
| Alegent Health Clinic | Hospital | 369 | Adams | 40 59 22 N | 094 44 55 W |
| Alegent Health Clinic | Hospital | 299 | Pottawattamie | 41 15 42 N | 095 52 38 W |
| Alegent Health Clinic | Hospital | 347 | Taylor | 40 40 03 N | 094 43 14 W |
| Alegent Health Clinic | Hospital | 397 | Taylor | 40 52 57 N | 094 33 31 W |
| Alegent Health Heart Center | Hospital | 325 | Pottawattamie | 41 16 05 N | 095 50 24 W |
| Alegent Health Logan Clinic | Hospital | 342 | Harrison | 41 38 32 N | 095 47 36 W |
| Alegent Health Mercy Hospital | Hospital | 370 | Adams | 40 59 20 N | 094 44 55 W |
| Alegent Health Missouri Valley Center | Hospital | 358 | Harrison | 41 33 47 N | 095 53 05 W |
| Alegent Health Southwest Iowa Medical Center | Hospital | 327 | Pottawattamie | 41 16 09 N | 095 50 21 W |
| Alexander | Populated Place | 387 | Franklin | 42 48 21 N | 093 28 36 W |
| Alexander (historical) | Locale | 383 | Franklin | 42 48 27 N | 093 28 36 W |
| Alexander Cemetery | Cemetery | 387 | Franklin | 42 48 15 N | 093 27 34 W |