8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Aurora | 1 | 4,730 | 4,665 | 0.28% | 1,443 | 3.28 | City |
| Hampton | 2 | 442 | 431 | 0.45% | 1,277 | 0.35 | Village |
| Giltner | 3 | 421 | 405 | 0.72% | 1,088 | 0.39 | Village |
| Phillips | 4 | 331 | 320 | 0.61% | 1,130 | 0.29 | Village |
| Marquette | 5 | 242 | 236 | 0.41% | 1,169 | 0.21 | Village |
| Overland | 6 | 204 | 102 | 1.49% | 229 | 0.89 | CDP |
| Hordville | 7 | 137 | 131 | 0.74% | 513 | 0.27 | Village |
| Lushton | 8 | 28 | 28 | 0% | 197 | 0.14 | Village |
Aurora is the largest city in Hamilton County, with a population of 4,730.
Lushton is the smallest city in Hamilton County.
There are 8 cities in Hamilton County, Nebraska.