| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Alliance | 1 | 7,883 | 8,158 | -0.39% | 1,611 | 5 | City |
| Hemingford | 2 | 743 | 770 | -0.4% | 1,094 | 1 | Village |
Alliance is the largest city in Box Butte County, with a population of 7,883.
Hemingford is the smallest city in Box Butte County, with a population of 743.
There are 2 cities in Box Butte County, Nebraska.