3 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Terrytown | 1 | 1,042 | 1,058 | -0.29% | 2,198 | 0 | City |
| Terrytown | 2 | 1,042 | 1,057 | -0.29% | 2,198 | 0 | City |
| Harrisburg | 3 | 49 | 75 | -5.77% | 8 | 6 | CDP |
Terrytown is the largest city in Banner County, with a population of 1,042.
Harrisburg is the smallest city in Banner County, with a population of 49.
There are 3 cities in Banner County, Nebraska.