Mountainair is a town in Torrance County, New Mexico, United States. It was founded in 1902 by John Corbett, Colonel E. C. Manning, and Elias S. Stover. The population was 884 at the 2020 census. It is part of the Albuquerque Metropolitan Statistical Area. The main visitor center for Salinas Pueblo Missions National Monument is located within the town.
According to the United States Census Bureau, the town has a total area of 1.0 square mile (2.7 km<sup>2</sup>), all land.
At the 2020 census, Mountainair had 884 people, 447 households, and 323 families residing within the town. The racial makeup of the town was 58.48% White, 2.15% Native Americans, 2.03% African American, 0.04% Asian, 0.02% Pacific Islander, 18.55% from other races, and 18.10% from two or more races. Hispanic or Latino of any race were 50.11% of the population.
The following are the government officials of Mountainair as of June 2024:
Its school district is Mountainair Public Schools.
Francine Neff, the 35th Treasurer of the United States, grew up on a small vegetable farm outside Mountainair.