13 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Toulon | 1 | 2,052 | 2,187 | -1.72% | 58 | 35 | Township |
| Wyoming | 2 | 1,231 | 1,298 | -1.05% | 1,441 | 1 | City |
| Wyoming | 3 | 1,200 | 1,246 | -0.99% | 33 | 36 | Township |
| Toulon | 4 | 1,130 | 1,184 | -0.96% | 1,111 | 1 | City |
| Osceola | 5 | 831 | 892 | -1.89% | 23 | 36 | Township |
| Bradford | 6 | 642 | 677 | -1.08% | 1,613 | 0 | Village |
| Goshen | 7 | 545 | 585 | -1.8% | 15 | 37 | Township |
| Elmira | 8 | 297 | 318 | -1.98% | 8 | 35 | Township |
| Penn | 9 | 292 | 315 | -2.01% | 8 | 36 | Township |
| Bradford | 10 | 252 | 259 | -0.79% | 7 | 36 | Township |
| Valley | 11 | 245 | 266 | -2.39% | 7 | 37 | Township |
| West Jersey | 12 | 226 | 240 | -1.74% | 6 | 37 | Township |
| La Fayette | 13 | 153 | 162 | -1.29% | 810 | 0 | Village |
Toulon is the largest city in Stark County, with a population of 2,052.
La Fayette is the smallest city in Stark County, with a population of 153.
There are 13 cities in Stark County, Illinois.