7 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Vienna | 1 | 10,803 | 10,635 | 0.46% | 269 | 40 | Township |
| Scottsburg | 2 | 7,431 | 7,339 | 0.24% | 1,341 | 6 | City |
| Jennings | 3 | 6,623 | 6,446 | 0.53% | 212 | 31 | Township |
| Austin | 4 | 4,182 | 4,051 | 0.63% | 1,339 | 3 | City |
| Lexington | 5 | 3,468 | 3,389 | 0.58% | 70 | 50 | Township |
| Johnson | 6 | 2,471 | 2,418 | 0.61% | 82 | 30 | Township |
| Finley | 7 | 1,512 | 1,488 | 0.47% | 38 | 39 | Township |
Vienna is the largest city in Scott County, with a population of 10,803.
Finley is the smallest city in Scott County, with a population of 1,512.
There are 7 cities in Scott County, Indiana.