Mountainair is a town in Torrance County, New Mexico, United States. The population was 1,116 at the 2000 census. It is part of the Albuquerque Metropolitan Statistical Area. The main visitor center for Salinas Pueblo Missions National Monument is in town.
Mountainair is located at 34°31′11″N 106°14′36″W / 34.51972°N 106.24333°W / 34.51972; -106.24333 (34.519726, -106.243218).
According to the United States Census Bureau, the town has a total area of 1.0 square miles (2.7 km²), all of it land.