13 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Hobbs | 1 | 41,161 | 40,523 | 0.24% | 1,559 | 26 | City |
| Hobbs | 2 | 41,161 | 40,659 | 0.24% | 1,559 | 26 | City |
| Lovington | 3 | 11,696 | 11,666 | 0.03% | 1,043 | 11 | City |
| Lovington | 4 | 11,696 | 11,680 | 0.03% | 1,043 | 11 | City |
| North Hobbs | 5 | 5,981 | 5,860 | 0.66% | 230 | 26 | CDP |
| Eunice | 6 | 3,068 | 3,062 | 0% | 749 | 4 | City |
| Eunice | 7 | 3,068 | 3,067 | 0% | 749 | 4 | City |
| Jal | 8 | 2,190 | 2,195 | -0.09% | 454 | 5 | City |
| Jal | 9 | 2,190 | 2,199 | -0.09% | 454 | 5 | City |
| Tatum | 10 | 713 | 705 | 0.14% | 450 | 2 | Town |
| Tatum | 11 | 713 | 706 | 0.14% | 450 | 2 | Town |
| Nadine | 12 | 237 | 233 | -3.66% | 21 | 11 | CDP |
| Monument | 13 | 110 | 76 | -5.17% | 21 | 5 | CDP |
Hobbs is the largest city in Lea County, with a population of 41,161.
Monument is the smallest city in Lea County, with a population of 110.
There are 13 cities in Lea County, New Mexico.