9 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Winnemucca | 1 | 8,180 | 8,397 | -0.55% | 837 | 10 | City |
| Winnemucca | 2 | 8,180 | 8,403 | -0.55% | 837 | 10 | City |
| Grass Valley | 3 | 1,197 | 967 | 0.17% | 35 | 35 | CDP |
| Fort McDermitt | 4 | 232 | 310 | -3.33% | 13 | 18 | CDP |
| Golconda | 5 | 169 | 76 | -1.74% | 100 | 2 | CDP |
| Paradise Valley | 6 | 149 | 157 | 2.05% | 44 | 3 | CDP |
| Orovada | 7 | 72 | 69 | -7.69% | 3 | 22 | CDP |
| McDermitt | 8 | 54 | 95 | -12.9% | 34 | 2 | CDP |
| Valmy | 9 | 44 | 85 | 7.32% | 214 | 0 | CDP |
Winnemucca is the largest city in Humboldt County, with a population of 8,180.
Valmy is the smallest city in Humboldt County, with a population of 44.
There are 9 cities in Humboldt County, Nevada.