11 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Deming | 1 | 15,292 | 15,175 | 0.13% | 915 | 17 | City |
| Deming | 2 | 15,292 | 15,192 | 0.13% | 915 | 17 | City |
| Keeler Farm | 3 | 1,819 | 1,794 | 1.96% | 160 | 11 | CDP |
| Columbus | 4 | 1,509 | 1,436 | 0.94% | 323 | 5 | Village |
| Columbus | 5 | 1,509 | 1,439 | 0.94% | 323 | 5 | Village |
| Ventura | 6 | 893 | 780 | 3.24% | 164 | 5 | CDP |
| Sunshine | 7 | 812 | 274 | 3.31% | 46 | 18 | CDP |
| La Hacienda | 8 | 639 | 442 | -0.78% | 472 | 1 | CDP |
| Pecan Park | 9 | 589 | 448 | 7.09% | 5,505 | 0 | CDP |
| Pulpotio Bareas | 10 | 86 | 223 | -2.27% | 167 | 1 | CDP |
| City Sun | 11 | 52 | 37 | 6.12% | 206 | 0 | CDP |
Deming is the largest city in Luna County, with a population of 15,292.
City Sun is the smallest city in Luna County, with a population of 52.
There are 11 cities in Luna County, New Mexico.