| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Clinton | 1 | 4,768 | 4,803 | -0.06% | 2,117 | 2 | City |
| Fairview Park | 2 | 1,425 | 1,402 | 0.35% | 1,630 | 1 | Town |
| Cayuga | 3 | 949 | 950 | 0% | 937 | 1 | Town |
| Dana | 4 | 554 | 554 | 0% | 1,897 | 0 | Town |
| Perrysville | 5 | 458 | 452 | 0.22% | 1,782 | 0 | Town |
| Newport | 6 | 409 | 411 | -0.24% | 469 | 1 | Town |
| Universal | 7 | 286 | 281 | 0.35% | 794 | 0 | Town |
Clinton is the largest city in Vermillion County, with a population of 4,768.
Universal is the smallest city in Vermillion County, with a population of 286.
There are 7 cities in Vermillion County, Indiana.