7 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Vienna township | 1 | 10,809 | 10,638 | 0.48% | 270 | 40.09 | Township |
| Scottsburg | 2 | 7,395 | 7,339 | 0.15% | 1,335 | 5.54 | City |
| Jennings township | 3 | 6,671 | 6,439 | 0.8% | 214 | 31.18 | Township |
| Austin | 4 | 4,229 | 4,056 | 0.83% | 1,354 | 3.12 | City |
| Lexington township | 5 | 3,465 | 3,380 | 0.67% | 70 | 49.58 | Township |
| Johnson township | 6 | 2,498 | 2,429 | 0.77% | 83 | 30.20 | Township |
| Finley township | 7 | 1,528 | 1,491 | 0.66% | 39 | 39.35 | Township |
Vienna township is the largest city in Scott County, with a population of 10,809.
Finley township is the smallest city in Scott County.
There are 7 cities in Scott County, Indiana.