| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Greenfield | 1 | 27,229 | 23,549 | 2.58% | 1,914 | 14 | City |
| Cumberland | 2 | 8,355 | 6,471 | 3.58% | 2,631 | 3 | Town |
| Fortville | 3 | 4,983 | 4,817 | 0.65% | 1,381 | 4 | Town |
| New Palestine | 4 | 3,832 | 2,766 | 5.83% | 1,884 | 2 | Town |
| Wilkinson | 5 | 412 | 424 | -0.48% | 2,050 | 0 | Town |
| Spring Lake | 6 | 217 | 213 | 0.46% | 1,418 | 0 | Town |
Greenfield is the largest city in Hancock County, with a population of 27,229.
Spring Lake is the smallest city in Hancock County, with a population of 217.
There are 6 cities in Hancock County, Indiana.