San Juan County, New Mexico
|San Juan County, New Mexico|
San Juan County Administration Building in Aztec, New Mexico
Location in the state of New Mexico
New Mexico's location in the U.S.
5,538 sq mi (14,343 km²)
5,514 sq mi (14,281 km²)
24 sq mi (62 km²), 0.44%
23/sq mi (9/km²)
San Juan County is a county located in the U.S. state of New Mexico. It is part of the Farmington, New Mexico Metropolitan Statistical Area. As of the 2010 Census, its population was 130,004. Its county seat is Aztec.
According to the U.S. Census Bureau, the county has a total area of 5,538 square miles (14,344 km²), of which 5,514 square miles (14,281 km²) is land and 24 square miles (63 km²) (0.44%) is water. Indian reservations (and off-reservation trust lands) comprise 63.4 percent of the county's land area: The Navajo Indian Reservation takes up 60.45% and the Ute Mountain Ute Tribe Reservation another 2.93%.
The physical features include three rivers: the San Juan, Animas, and La Plata rivers; also, the Chuska Mountains and Shiprock Pinnacle to the west, volcanic structures, buttes, mesas, badlands, and fertile river valleys.
Adjacent counties 
- Rio Arriba County, New Mexico - east
- Sandoval County, New Mexico - southeast
- McKinley County, New Mexico - south
- Apache County, Arizona - west
- San Juan County, Utah - northwest (at a single point)
- Montezuma County, Colorado - north
- La Plata County, Colorado - north
- Archuleta County, Colorado - northeast
San Juan County in New Mexico and Utah are two of twenty-two counties or parishes in the United States with the same name to border each other across state lines. The others are Union Parish, Louisiana and Union County, Arkansas, Big Horn County, Montana and Big Horn County, Wyoming, Sabine County, Texas and Sabine Parish, Louisiana, Bristol County, Massachusetts and Bristol County, Rhode Island, Kent County, Delaware and Kent County, Maryland, Escambia County, Alabama and Escambia County, Florida., Pike County, Illinois and Pike County, Missouri, Teton County, Idaho and Teton County, Wyoming, Park County, Montana and Park County, Wyoming, and Vermilion County, Illinois and Vermillion County, Indiana. respectively. (Note, despite the different spellings, the source of the name is the same for Vermilion County, Illinois and Vermillion County, Indiana--the Vermillion River which flows through both counties.)
National protected areas 
Major highways 
- U.S. Route 64
- U.S. Route 491 (formerly )
- U.S. Route 550
- New Mexico State Road 516
- New Mexico State Road 371
Whereas according to the 2010 U.S. Census Bureau:
- 51.6% White
- 0.6% Black
- 36.6% Native American
- 0.4% Asian
- 0.1% Native Hawaiian or Pacific Islander
- 3.5% Two or more races
- 7.2% Other races
- 19.1% Hispanic or Latino (of any race)
As of the census of 2000, there were 113,801 people, 37,711 households, and 28,924 families residing in the county. The population density was 21 people per square mile (8/km²). There were 43,221 housing units at an average density of 8 per square mile (3/km²). The racial makeup of the county was 52.83% White, 0.44% Black or African American, 36.88% Native American, 0.27% Asian, 0.05% Pacific Islander, 6.77% from other races, and 2.78% from two or more races. 14.99% of the population were Hispanic or Latino of any race.
There were 37,711 households out of which 42.00% had children under the age of 18 living with them, 55.70% were married couples living together, 14.70% had a female householder with no husband present, and 23.30% were non-families. 19.30% of all households were made up of individuals and 6.40% had someone living alone who was 65 years of age or older. The average household size was 2.99 and the average family size was 3.43.
In the county the population was spread out with 32.60% under the age of 18, 10.00% from 18 to 24, 28.10% from 25 to 44, 20.20% from 45 to 64, and 9.10% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 98.30 males. For every 100 females age 18 and over, there were 94.70 males.
The median income for a household in the county was $33,762, and the median income for a family was $37,382. Males had a median income of $35,066 versus $21,299 for females. The per capita income for the county was $14,282. About 18.00% of families and 21.50% of the population were below the poverty line, including 26.60% of those under age 18 and 18.20% of those age 65 or over.
Census-designated places 
- Flora Vista
- Napi HQ
- Ojo Amarillo
- Sheep Springs
- Upper Fruitland
Other communities 
See also 
- Bisti/De-Na-Zin Wilderness
- National Register of Historic Places listings in San Juan County, New Mexico
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
||San Juan County, Utah||Montezuma County, Colorado and La Plata County, Colorado||Archuleta County, Colorado|
|Apache County, Arizona||Rio Arriba County|
|McKinley County||Sandoval County|