15 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Davenport | 1 | 100,581 | 101,651 | -0.18% | 1,566 | 64 | City |
| Bettendorf | 2 | 40,856 | 39,130 | 0.71% | 1,918 | 21 | City |
| Eldridge | 3 | 7,085 | 6,731 | 0.84% | 726 | 10 | City |
| Le Claire | 4 | 4,809 | 4,710 | 0.35% | 1,034 | 5 | City |
| Blue Grass | 5 | 1,727 | 1,666 | 0.58% | 547 | 3 | City |
| Walcott | 6 | 1,556 | 1,556 | 0% | 500 | 3 | City |
| Buffalo | 7 | 1,156 | 1,176 | -0.26% | 171 | 7 | City |
| Princeton | 8 | 913 | 924 | -0.22% | 280 | 3 | City |
| Long Grove | 9 | 855 | 837 | 0.35% | 743 | 1 | City |
| Riverdale | 10 | 387 | 380 | 0.26% | 210 | 2 | City |
| Donahue | 11 | 338 | 332 | 0.3% | 952 | 0 | City |
| McCausland | 12 | 316 | 310 | 0.32% | 570 | 1 | City |
| Dixon | 13 | 204 | 203 | 0% | 1,632 | 0 | City |
| New Liberty | 14 | 142 | 138 | 0.71% | 1,495 | 0 | City |
| Panorama Park | 15 | 142 | 141 | 0% | 2,367 | 0 | City |
Davenport is the largest city in Scott County, with a population of 100,581.
Panorama Park is the smallest city in Scott County, with a population of 142.
There are 15 cities in Scott County, Iowa.