Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Davenport (city), IA | 101,724 |
| 2 | Bettendorf (city), IA | 39,102 |
| 3 | Eldridge (city), IA | 6,726 |
| 4 | DeWitt (city), IA | 5,514 |
| 5 | Le Claire (city), IA | 4,710 |
| 6 | Park View (CDP), IA | 2,709 |
| 7 | Durant (city), IA | 1,871 |
| 8 | Blue Grass (city), IA | 1,666 |
| 9 | Walcott (city), IA | 1,551 |
| 10 | Princeton (city), IA | 923 |
| 11 | Long Grove (city), IA | 838 |
| 12 | Grand Mound (city), IA | 615 |
| 13 | Riverdale (city), IA | 379 |
| 14 | Donahue (city), IA | 335 |
| 15 | McCausland (city), IA | 313 |
| 16 | Dixon (city), IA | 202 |
| 17 | Stockton (city), IA | 176 |
| 18 | Maysville (city), IA | 156 |
| 19 | Panorama Park (city), IA | 139 |
| 20 | New Liberty (city), IA | 138 |