4 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Los Lunas | 1 | 21,140 | 17,440 | 3.01% | 1,038 | 20 | Village |
| Belen | 2 | 7,653 | 7,362 | 0.64% | 403 | 19 | City |
| Bosque Farms | 3 | 4,195 | 4,023 | 0.7% | 1,066 | 4 | Village |
| Peralta | 4 | 3,528 | 3,354 | 0.83% | 794 | 4 | Town |
Los Lunas is the largest city in Valencia County, with a population of 21,140.
Peralta is the smallest city in Valencia County, with a population of 3,528.
There are 4 cities in Valencia County, New Mexico.