5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Winchester | 1 | 1,444 | 1,569 | -1.7% | 1,279 | 1.13 | City |
| Manchester township | 2 | 856 | 879 | -0.58% | 26 | 33.49 | Township |
| Bluffs | 3 | 572 | 621 | -1.72% | 641 | 0.89 | Village |
| Manchester | 4 | 249 | 269 | -1.58% | 234 | 1.06 | Village |
| Alsey | 5 | 173 | 192 | -2.26% | 315 | 0.55 | Village |
Winchester is the largest city in Scott County, with a population of 1,444.
Alsey is the smallest city in Scott County.
There are 5 cities in Scott County, Illinois.