| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Harrison | 1 | 249 | 239 | 0.81% | 814 | 0 | Village |
Harrison is the largest city in Sioux County, with a population of 249.
Harrison is the smallest city in Sioux County, with a population of 249.
There is 1 city in Sioux County, Nebraska.