14 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Logan | 1 | 3,711 | 3,418 | 0.9% | 167 | 22 | Township |
| Attica | 2 | 3,344 | 3,052 | 1.49% | 1,854 | 2 | City |
| Covington | 3 | 2,784 | 2,684 | 0.61% | 1,927 | 1 | City |
| Veedersburg | 4 | 2,096 | 2,095 | 0% | 700 | 3 | Town |
| Millcreek | 5 | 1,440 | 1,396 | 1.05% | 34 | 43 | Township |
| Cain | 6 | 1,142 | 1,120 | 0.88% | 29 | 40 | Township |
| Shawnee | 7 | 653 | 647 | 0.46% | 19 | 35 | Township |
| Jackson | 8 | 613 | 600 | 0.99% | 17 | 36 | Township |
| Davis | 9 | 588 | 571 | 1.2% | 25 | 24 | Township |
| Kingman | 10 | 567 | 560 | 0.18% | 859 | 1 | Town |
| Hillsboro | 11 | 508 | 510 | 0% | 1,623 | 0 | Town |
| Newtown | 12 | 219 | 219 | 0% | 435 | 1 | Town |
| Mellott | 13 | 176 | 173 | 0.57% | 515 | 0 | Town |
| Wallace | 14 | 81 | 81 | 0% | 566 | 0 | Town |
Logan is the largest city in Fountain County, with a population of 3,711.
Wallace is the smallest city in Fountain County, with a population of 81.
There are 14 cities in Fountain County, Indiana.