| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Alamogordo | 1 | 32,189 | 30,931 | 0.89% | 1,492 | 22 | City |
| Tularosa | 2 | 2,689 | 2,566 | 1.01% | 954 | 3 | Village |
| Cloudcroft | 3 | 761 | 744 | 0.53% | 465 | 2 | Village |
Alamogordo is the largest city in Otero County, with a population of 32,189.
Cloudcroft is the smallest city in Otero County, with a population of 761.
There are 3 cities in Otero County, New Mexico.