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San Miguel County

Facts about San Miguel County, New Mexico

San Miguel County is a county in the U.S. state of New Mexico. As of the 2010 census, the population was 29,393. Its county seat is Las Vegas.

San Miguel County comprises the Las Vegas, NM Micropolitan Statistical Area, which is also included in the Albuquerque-Santa Fe-Las Vegas, NM Combined Statistical Area.


According to the U.S. Census Bureau, the county has a total area of 4,736 square miles (12,270 km²), of which 4,716 square miles (12,210 km²) is land and 20 square miles (52 km²) (0.4%) is water.


As of the 2010 census, there were 29,393 people, 11,978 households, and 7,275 families residing in the county. The population density was 6.2 inhabitants per square mile (2.4/km²). There were 15,595 housing units at an average density of 3.3 per square mile (1.3/km²). The racial makeup of the county was 66.6% white, 1.7% American Indian, 1.4% black or African American, 0.8% Asian, 0.1% Pacific islander, 25.4% from other races, and 3.9% from two or more races. Those of Hispanic or Latino origin made up 76.8% of the population. In terms of ancestry, 6.3% were German, 5.3% were English, and 1.6% were American.

Of the 11,978 households, 28.8% had children under the age of 18 living with them, 38.6% were married couples living together, 14.9% had a female householder with no husband present, 39.3% were non-families, and 32.5% of all households were made up of individuals. The average household size was 2.34 and the average family size was 2.95. The median age was 40.7 years.



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San Miguel County 505-933-7959