| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Muncie | 1 | 65,508 | 65,105 | 0.06% | 2,390 | 27 | City |
| Yorktown | 2 | 12,025 | 11,540 | 0.65% | 377 | 32 | Town |
| Chesterfield | 3 | 2,530 | 2,480 | 0.28% | 1,848 | 1 | Town |
| Albany | 4 | 2,266 | 2,277 | -0.13% | 1,144 | 2 | Town |
| Daleville | 5 | 1,719 | 1,653 | 0.76% | 808 | 2 | Town |
| Eaton | 6 | 1,585 | 1,590 | -0.06% | 425 | 4 | Town |
| Gaston | 7 | 807 | 797 | 0.12% | 2,217 | 0 | Town |
| Selma | 8 | 740 | 744 | -0.13% | 827 | 1 | Town |
| Blountsville | 9 | 95 | 95 | 0% | 841 | 0 | Town |
Muncie is the largest city in Delaware County, with a population of 65,508.
Blountsville is the smallest city in Delaware County, with a population of 95.
There are 9 cities in Delaware County, Indiana.