Identifiers: city
| Rank | Community | Population |
|---|---|---|
| 1 | Cedar Rapids (city), IA | 137,710 |
| 2 | Iowa City (city), IA | 74,828 |
| 3 | Coralville (city), IA | 22,318 |
| 4 | North Liberty (city), IA | 20,479 |
| 5 | Hiawatha (city), IA | 7,183 |
| 6 | Tiffin (city), IA | 4,512 |
| 7 | West Liberty (city), IA | 3,858 |
| 8 | Williamsburg (city), IA | 3,346 |
| 9 | Solon (city), IA | 3,018 |
| 10 | Fairfax (city), IA | 2,828 |
| 11 | Kalona (city), IA | 2,630 |
| 12 | West Branch (city), IA | 2,509 |
| 13 | Ely (city), IA | 2,328 |
| 14 | Walford (city), IA | 1,366 |
| 15 | Lone Tree (city), IA | 1,357 |
| 16 | University Heights (city), IA | 1,228 |
| 17 | Riverside (city), IA | 1,060 |
| 18 | Swisher (city), IA | 914 |
| 19 | Hills (city), IA | 863 |
| 20 | Shueyville (city), IA | 731 |
Identifiers: city
| Rank | Community | Population |
|---|---|---|
| 1 | Cedar Rapids (city), IA | 137,710 |
| 2 | Iowa City (city), IA | 74,828 |
| 3 | Coralville (city), IA | 22,318 |
| 4 | North Liberty (city), IA | 20,479 |
| 5 | Hiawatha (city), IA | 7,183 |
| 6 | Tiffin (city), IA | 4,512 |
| 7 | West Liberty (city), IA | 3,858 |
| 8 | Williamsburg (city), IA | 3,346 |
| 9 | Solon (city), IA | 3,018 |
| 10 | Fairfax (city), IA | 2,828 |
| 11 | Kalona (city), IA | 2,630 |
| 12 | West Branch (city), IA | 2,509 |
| 13 | Ely (city), IA | 2,328 |
| 14 | Walford (city), IA | 1,366 |
| 15 | Lone Tree (city), IA | 1,357 |
| 16 | University Heights (city), IA | 1,228 |
| 17 | Riverside (city), IA | 1,060 |
| 18 | Swisher (city), IA | 914 |
| 19 | Hills (city), IA | 863 |
| 20 | Shueyville (city), IA | 731 |