Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Antoine LeClair | Locale | 205 | Scott | 41 31 57 N | 090 34 09 W |
| Antoine LeClair Park | Park | 171 | Scott | 41 31 06 N | 090 34 49 W |
| Antoine LeClaires Reservation | Reserve | 228 | Johnson | 41 36 28 N | 091 24 01 W |
| Anton Cemetery | Cemetery | 260 | Black Hawk | 42 20 31 N | 092 14 25 W |
| Apache Park | Park | 235 | Linn | 41 58 34 N | 091 42 29 W |
| Aplington | Locale | 296 | Butler | 42 35 08 N | 092 52 57 W |
| Aplington | Populated Place | 297 | Butler | 42 35 03 N | 092 53 04 W |
| Aplington Chiropractic Clinic | Hospital | 297 | Butler | 42 35 02 N | 092 53 03 W |
| Aplington City Hall | Building | 297 | Butler | 42 35 03 N | 092 53 04 W |
| Aplington Feed and Grain Company Elevator | Locale | 297 | Butler | 42 35 03 N | 092 53 04 W |
| Aplington Middle-Elementary School | School | 311 | Butler | 42 34 46 N | 092 53 07 W |
| Aplington Parkersburg High School | School | 301 | Butler | 42 34 23 N | 092 46 43 W |
| Aplington Post Office | Post Office | 297 | Butler | 42 35 02 N | 092 53 04 W |
| Aplington Public Library | Building | 297 | Butler | 42 35 03 N | 092 53 04 W |
| Aplington Recreation Complex | Park | 297 | Butler | 42 35 03 N | 092 53 04 W |
| Apollo Central School | School | 197 | Des Moines | 40 48 37 N | 091 06 50 W |
| Apollo Post Office (historical) | Post Office | 245 | Cedar | 41 42 20 N | 091 05 01 W |
| Apostolic Assembly | Church | 176 | Scott | 41 31 35 N | 090 30 41 W |
| Apostolic Assembly of Anamoose | Church | 253 | Jones | 42 06 30 N | 091 17 07 W |
| Apostolic Cemetery | Cemetery | 262 | Clayton | 42 56 05 N | 091 34 57 W |
| Apostolic Christian Cemetery | Cemetery | 360 | Kossuth | 42 57 46 N | 094 25 25 W |
| Apostolic Christian Cemetery | Cemetery | 414 | Lyon | 43 24 22 N | 096 18 16 W |
| Apostolic Christian Church | Church | 253 | Davis | 40 41 49 N | 092 16 24 W |
| Apostolic Christian Church | Church | 255 | Fayette | 42 57 20 N | 091 37 33 W |
| Apostolic Christian Church | Church | 234 | Johnson | 41 44 56 N | 091 36 05 W |
| Apostolic Christian Church | Church | 165 | Louisa | 41 05 59 N | 091 02 41 W |
| Apostolic Christian Church | Church | 429 | Lyon | 43 26 41 N | 096 19 59 W |
| Apostolic Christian Fellowship | Church | 360 | Palo Alto | 42 57 10 N | 094 26 58 W |
| Apostolic Church | Church | 174 | Des Moines | 41 03 21 N | 091 02 43 W |
| Apostolic Church | Church | 278 | Marion | 41 19 14 N | 093 06 07 W |