13 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Kearney | 1 | 34,684 | 33,879 | 0.47% | 2,316 | 14.97 | City |
| Gibbon | 2 | 1,932 | 1,882 | 0.52% | 2,208 | 0.88 | City |
| Ravenna | 3 | 1,342 | 1,442 | -1.47% | 859 | 1.56 | City |
| Shelton | 4 | 1,048 | 1,040 | 0.19% | 1,087 | 0.96 | Village |
| Elm Creek | 5 | 975 | 982 | -0.1% | 1,403 | 0.69 | Village |
| Glenwood | 6 | 680 | 541 | 2.1% | 283 | 2.40 | CDP |
| Pleasanton | 7 | 387 | 364 | 1.31% | 1,118 | 0.35 | Village |
| Riverdale | 8 | 238 | 247 | -0.83% | 902 | 0.26 | Village |
| Amherst | 9 | 197 | 199 | 0% | 904 | 0.22 | Village |
| Miller township | 10 | 147 | 150 | -0.68% | 4 | 36.08 | Township |
| Odessa | 11 | 129 | 57 | 0% | 71 | 1.82 | CDP |
| Miller | 12 | 125 | 130 | -0.79% | 330 | 0.38 | Village |
| Poole | 13 | 18 | 14 | 12.5% | 7 | 2.70 | CDP |
Kearney is the largest city in Buffalo County, with a population of 34,684.
Poole is the smallest city in Buffalo County.
There are 13 cities in Buffalo County, Nebraska.