16 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Rushville | 1 | 2,880 | 2,987 | -0.72% | 1,743 | 1.65 | City |
| Rushville township | 2 | 2,365 | 2,431 | -0.3% | 65 | 36.40 | Township |
| Browning township | 3 | 2,345 | 2,406 | -0.38% | 66 | 35.79 | Township |
| Buena Vista township | 4 | 1,859 | 1,900 | -0.27% | 51 | 36.45 | Township |
| Bainbridge township | 5 | 558 | 573 | -0.36% | 13 | 43.83 | Township |
| Browning township | 6 | 344 | 357 | -0.58% | 12 | 28.77 | Township |
| Littleton township | 7 | 276 | 280 | 0% | 8 | 36.52 | Township |
| Camden township | 8 | 170 | 177 | -0.58% | 5 | 36.94 | Township |
| Frederick township | 9 | 149 | 154 | -0.67% | 11 | 13.81 | Township |
| Brooklyn township | 10 | 142 | 147 | -0.7% | 4 | 37.12 | Township |
| Littleton | 11 | 133 | 137 | -0.75% | 114 | 1.17 | Village |
| Huntsville township | 12 | 131 | 133 | 0% | 3 | 37.89 | Township |
| Birmingham township | 13 | 128 | 131 | 0% | 3 | 38.20 | Township |
| Browning | 14 | 113 | 118 | -0.88% | 365 | 0.31 | Village |
| Hickory township | 15 | 98 | 103 | -1.01% | 6 | 17.70 | Township |
| Camden | 16 | 58 | 62 | -1.69% | 76 | 0.76 | Village |
Rushville is the largest city in Schuyler County, with a population of 2,880.
Camden is the smallest city in Schuyler County.
There are 16 cities in Schuyler County, Illinois.