16 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Rushville | 1 | 2,889 | 2,963 | -0.52% | 1,749 | 2 | City |
| Rushville | 2 | 2,385 | 2,428 | 0.34% | 66 | 36 | Township |
| Browning | 3 | 2,343 | 2,403 | -0.42% | 65 | 36 | Township |
| Buena Vista | 4 | 1,887 | 1,899 | 0.43% | 52 | 36 | Township |
| Bainbridge | 5 | 571 | 577 | 0.53% | 13 | 44 | Township |
| Browning | 6 | 349 | 357 | 0.29% | 12 | 29 | Township |
| Littleton | 7 | 276 | 282 | 0% | 8 | 37 | Township |
| Camden | 8 | 177 | 178 | 1.14% | 5 | 37 | Township |
| Frederick | 9 | 149 | 154 | -0.67% | 11 | 14 | Township |
| Brooklyn | 10 | 146 | 147 | 0.69% | 4 | 37 | Township |
| Littleton | 11 | 135 | 138 | -0.74% | 116 | 1 | Village |
| Huntsville | 12 | 131 | 133 | 0% | 3 | 38 | Township |
| Birmingham | 13 | 128 | 131 | 0% | 3 | 38 | Township |
| Browning | 14 | 116 | 120 | -0.85% | 374 | 0 | Village |
| Hickory | 15 | 102 | 103 | 0.99% | 6 | 18 | Township |
| Camden | 16 | 61 | 63 | -1.61% | 80 | 1 | Village |
Rushville is the largest city in Schuyler County, with a population of 2,889.
Camden is the smallest city in Schuyler County, with a population of 61.
There are 16 cities in Schuyler County, Illinois.