17 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Adams | 1 | 5,171 | 5,098 | -0.14% | 93 | 56 | Township |
| Marshall | 2 | 4,596 | 4,558 | 0.35% | 127 | 36 | Township |
| Rockville | 3 | 2,628 | 2,510 | 0.77% | 1,761 | 1 | Town |
| Florida | 4 | 2,330 | 2,255 | 0.34% | 48 | 48 | Township |
| Union | 5 | 1,531 | 1,474 | 0.46% | 47 | 33 | Township |
| Reserve | 6 | 1,293 | 1,287 | -0.08% | 51 | 25 | Township |
| Montezuma | 7 | 927 | 923 | 0.11% | 1,530 | 1 | Town |
| Penn | 8 | 761 | 746 | 0.13% | 32 | 24 | Township |
| Jackson | 9 | 729 | 711 | 0.28% | 20 | 36 | Township |
| Raccoon | 10 | 692 | 678 | 0.14% | 19 | 37 | Township |
| Rosedale | 11 | 660 | 639 | 0.61% | 1,671 | 0 | Town |
| Greene | 12 | 424 | 408 | 0.24% | 12 | 36 | Township |
| Howard | 13 | 377 | 373 | -0.26% | 16 | 24 | Township |
| Sugar Creek | 14 | 325 | 313 | 0.31% | 13 | 25 | Township |
| Mecca | 15 | 282 | 270 | 0.71% | 718 | 0 | Town |
| Marshall | 16 | 280 | 271 | 0.72% | 1,094 | 0 | Town |
| Bloomingdale | 17 | 276 | 269 | 0.36% | 474 | 1 | Town |
Adams is the largest city in Parke County, with a population of 5,171.
Bloomingdale is the smallest city in Parke County, with a population of 276.
There are 17 cities in Parke County, Indiana.