9 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Syracuse | 1 | 2,131 | 2,083 | 1.14% | 26 | 81 | Township |
| Syracuse | 2 | 1,807 | 1,807 | 0% | 441 | 4 | City |
| Coolidge | 3 | 112 | 108 | 1.82% | 1 | 115 | Township |
| Kendall | 4 | 80 | 84 | 0% | 0.00 | 191 | Township |
| Coolidge | 5 | 78 | 78 | 0% | 169 | 0 | City |
| Kendall | 6 | 73 | 71 | 1.39% | 1 | 90 | Township |
| Bear Creek | 7 | 56 | 54 | 0% | 0.00 | 174 | Township |
| Medway | 8 | 43 | 43 | 0% | 0.00 | 108 | Township |
| Richland | 9 | 27 | 25 | 3.85% | 0.00 | 164 | Township |
Syracuse is the largest city in Hamilton County, with a population of 2,131.
Richland is the smallest city in Hamilton County, with a population of 27.
There are 9 cities in Hamilton County, Kansas.