3 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Shelbyville | 1 | 21,204 | 20,126 | 0.86% | 1,536 | 14 | City |
| Morristown | 2 | 1,189 | 1,213 | -0.34% | 310 | 4 | Town |
| Fairland | 3 | 538 | 543 | -0.19% | 471 | 1 | Town |
Shelbyville is the largest city in Shelby County, with a population of 21,204.
Fairland is the smallest city in Shelby County, with a population of 538.
There are 3 cities in Shelby County, Indiana.