10 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Perry | 1 | 5,059 | 5,035 | 0% | 52 | 96 | Township |
| Loogootee | 2 | 2,622 | 2,597 | 0.19% | 1,675 | 2 | City |
| Halbert | 3 | 1,548 | 1,541 | 0% | 30 | 52 | Township |
| Center | 4 | 1,482 | 1,477 | 0% | 38 | 39 | Township |
| Rutherford | 5 | 723 | 705 | 0.28% | 21 | 35 | Township |
| Shoals | 6 | 676 | 676 | 0% | 371 | 2 | Town |
| Mitcheltree | 7 | 557 | 555 | 0% | 8 | 71 | Township |
| Lost River | 8 | 497 | 497 | 0% | 12 | 42 | Township |
| Crane | 9 | 163 | 166 | -0.61% | 1,358 | 0 | Town |
| Dover Hill | 10 | 34 | 16 | -12.82% | 44 | 1 | CDP |
Perry is the largest city in Martin County, with a population of 5,059.
Dover Hill is the smallest city in Martin County, with a population of 34.
There are 10 cities in Martin County, Indiana.