2 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Parker | 1 | 3,464 | 3,421 | 0.23% | 158 | 22 | Town |
| Quartzsite | 2 | 2,428 | 2,412 | 0.12% | 67 | 36 | Town |
Parker is the largest city in La Paz County, with a population of 3,464.
Quartzsite is the smallest city in La Paz County, with a population of 2,428.
There are 2 cities in La Paz County, Arizona.