7 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Clinton | 1 | 4,800 | 4,805 | -0.02% | 2,131 | 2 | City |
| Fairview Park | 2 | 1,425 | 1,401 | 0.28% | 1,630 | 1 | Town |
| Cayuga | 3 | 956 | 949 | 0.1% | 944 | 1 | Town |
| Dana | 4 | 552 | 552 | 0% | 1,890 | 0 | Town |
| Perrysville | 5 | 464 | 454 | 0.43% | 1,805 | 0 | Town |
| Newport | 6 | 412 | 411 | 0% | 472 | 1 | Town |
| Universal | 7 | 285 | 281 | 0.35% | 792 | 0 | Town |
Clinton is the largest city in Vermillion County, with a population of 4,800.
Universal is the smallest city in Vermillion County, with a population of 285.
There are 7 cities in Vermillion County, Indiana.