7 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Ohkay Owingeh | Rio Arriba County | 1,180 |
| Ojo Encino | McKinley County | 556 |
| Ojo Sarco | Rio Arriba County | 351 |
| Ojo Amarillo | San Juan County | 325 |
| Oasis | Sierra County | 108 |
| Ojo Caliente | Taos County | 59 |
| Organ | Doña Ana County | 42 |