8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Hobbs | 1 | 38,538 | 40,657 | -1.09% | 1,460 | 26.40 | City |
| Lovington | 2 | 10,937 | 11,687 | -1.35% | 976 | 11.21 | City |
| North Hobbs | 3 | 5,981 | 5,860 | 0.66% | 230 | 26.04 | CDP |
| Eunice | 4 | 2,862 | 3,067 | -1.41% | 699 | 4.09 | City |
| Jal | 5 | 2,042 | 2,199 | -1.5% | 423 | 4.82 | City |
| Tatum | 6 | 664 | 706 | -1.19% | 419 | 1.58 | Town |
| Nadine | 7 | 237 | 233 | -3.66% | 21 | 11.39 | CDP |
| Monument | 8 | 110 | 76 | -5.17% | 21 | 5.28 | CDP |
Hobbs is the largest city in Lea County, with a population of 38,538.
Monument is the smallest city in Lea County.
There are 8 cities in Lea County, New Mexico.