2 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Mullen | 1 | 437 | 496 | -2.67% | 1,058 | 0.41 | Village |
| Mullen township | 2 | 20 | 21 | 0% | 1 | 39.21 | Township |
Mullen is the largest city in Hooker County, with a population of 437.
Mullen township is the smallest city in Hooker County.
There are 2 cities in Hooker County, Nebraska.