| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Seward | 1 | 7,919 | 7,699 | 0.34% | 1,801 | 4 | City |
| Milford | 2 | 2,306 | 2,155 | 0.87% | 2,904 | 1 | City |
| Utica | 3 | 830 | 837 | -0.12% | 1,800 | 0 | Village |
| Beaver Crossing | 4 | 367 | 372 | -0.27% | 560 | 1 | Village |
| Staplehurst | 5 | 227 | 237 | -0.87% | 1,816 | 0 | Village |
| Pleasant Dale | 6 | 212 | 223 | -0.93% | 1,876 | 0 | Village |
| Garland | 7 | 209 | 210 | -0.48% | 1,244 | 0 | Village |
| Goehner | 8 | 176 | 184 | -0.56% | 1,011 | 0 | Village |
| Bee | 9 | 167 | 171 | -0.6% | 668 | 0 | Village |
| Cordova | 10 | 100 | 96 | 0% | 402 | 0 | Village |
| Thayer | 11 | 52 | 49 | 0% | 184 | 0 | Village |
Seward is the largest city in Seward County, with a population of 7,919.
Thayer is the smallest city in Seward County, with a population of 52.
There are 11 cities in Seward County, Nebraska.