1 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Gallup | 1 | 19,973 | 21,801 | -1.8% | 989 | 20 | City |
Gallup is the largest city in McKinley County, with a population of 19,973.
Gallup is the smallest city in McKinley County, with a population of 19,973.
There is 1 city in McKinley County, New Mexico.