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Doña Ana County, New Mexico facts for kids

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Doña Ana County
Doña Ana County Government Center
Doña Ana County Government Center
Flag of Doña Ana County
Flag
Official seal of Doña Ana County
Seal
Map of New Mexico highlighting Doña Ana County
Location within the U.S. state of New Mexico
Map of the United States highlighting New Mexico
New Mexico's location within the U.S.
Country  United States
State  New Mexico
Founded 1852
Seat Las Cruces
Largest city Las Cruces
Area
 • Total 3,814 sq mi (9,880 km2)
 • Land 3,808 sq mi (9,860 km2)
 • Water 6.9 sq mi (18 km2)  0.2%%
Population
 (2020)
 • Total 219,561
 • Density 55/sq mi (21/km2)
Time zone UTC−7 (Mountain)
 • Summer (DST) UTC−6 (MDT)
Congressional district 2nd

Doña Ana County is located in the southern part of the State of New Mexico, United States. As of the 2020 U.S. Census, its population was 219,561, which makes it the second-most populated county in New Mexico. Its county seat is Las Cruces, the second-most populous municipality in New Mexico after Albuquerque, with 111,385 as of the 2020 U.S. Census.

The county is named for Doña Ana Robledo, who died there in 1680 while fleeing the Pueblo Revolt. Doña Ana County is one of only two counties in the United States to have a diacritical mark in its name, the other being Coös County, New Hampshire. Notably, both Doña Ana County and Coös County lie on short international borders, the former with Mexico and the latter with Canada.

Doña Ana County consists of the Las Cruces, NM Metropolitan Statistical Area, which is also included in the El Paso–Las Cruces, TX–NM Combined Statistical Area. It borders Luna, Sierra, and Otero counties in New Mexico, and El Paso County, Texas to the east and southeast.

The state of Chihuahua, Mexico borders the county to the south. Construction of an improved barrier on the border was expedited in 2019 with waivers of environmental and other laws. The waivers are for 27 laws including protection of endangered species, archaeological sites, and historic places.

Being 67.3% Hispanic in 2020, Doña Ana is New Mexico's largest majority-Hispanic county.

Geography

According to the U.S. Census Bureau, the county has a total area of 3,814 square miles (9,880 km2), of which 3,808 square miles (9,860 km2) is land and 6.9 square miles (18 km2) (0.2%) is covered by water.

The county contains a number of prominent geographical features, most notably the Mesilla Valley (the flood plain of the Rio Grande) going north to south through the center and the Organ Mountains along the county's eastern edge. Other mountain ranges in the county are the Robledo Mountains, Doña Ana Mountains, Sierra de las Uvas, the southern end of the San Andres Mountains, East Potrillo Mountains, and West Potrillo Mountains, as well as two small, isolated mountains, Tortugas (or A) Mountain on the east and Picacho Peak on the west side of Las Cruces. The county also includes one of New Mexico's four large lava fields, the Aden Malpais, and one of the world's largest maare volcanoes, Kilbourne Hole.

Adjacent counties and municipios

National protected areas

Demographics

Historical population
Census Pop.
1910 12,893
1920 16,548 28.3%
1930 27,455 65.9%
1940 30,411 10.8%
1950 39,557 30.1%
1960 59,948 51.5%
1970 69,773 16.4%
1980 96,340 38.1%
1990 135,510 40.7%
2000 174,682 28.9%
2010 209,233 19.8%
2020 219,561 4.9%
U.S. Decennial Census
1790–1960 1900–1990
1990–2000 2010–2020

2010 U.S. Census

As of the 2010 United States Census, there were 209,233 people, 75,532 households, and 51,863 families residing in the county. The population density was 55.0 inhabitants per square mile (21.2/km2). There were 81,492 housing units at an average density of 21.4 per square mile (8.3/km2). The racial makeup of the county was 74.1% white, 1.7% black or African American, 1.5% American Indian, 1.1% Asian, 0.1% Pacific islander, 18.5% from other races, and 3.0% from two or more races. Those of Hispanic or Latino origin made up 65.7% of the population. In terms of ancestry, 7.3% were German, and 2.2% were American.

Of the 75,532 households, 37.4% had children under the age of 18 living with them, 46.8% were married couples living together, 16.0% had a female householder with no husband present, 31.3% were non-families, and 24.2% of all households were made up of individuals. The average household size was 2.71 and the average family size was 3.25. The median age was 32.4 years.

The median income for a household in the county was $36,657 and the median income for a family was $43,184. Males had a median income of $33,510 versus $25,217 for females. The per capita income for the county was $18,315. About 20.1% of families and 24.5% of the population were below the poverty line, including 34.8% of those under age 18 and 13.6% of those age 65 or over.

2000 U.S. Census

As of the 2000 United States Census, there were 174,682 people, 59,556 households, and 42,939 families residing in the county. The population density was 46 people per square mile (18/km2). There were 65,210 housing units at an average density of 17 per square mile (7/km2). The racial makeup of the county was 67.8% White, 1.6% Black or African American, 1.5% Native American, 0.8% Asian, 0.1% Pacific Islander, 24.7% from other races, and 3.6% from two or more races. 63.4% of the population were Hispanic or Latino of any race.

There were 59,556 households, out of which 38.4% had children under the age of 18 living with them, 52.4% were married couples living together, 14.7% had a female householder with no husband present, and 27.9% were non-families. 21.3% of all households were made up of individuals, and 6.9% had someone living alone who was 65 years of age or older. The average household size was 2.85 and the average family size was 3.36.

In the county, the population was spread out, with 29.7% under the age of 18, 13.3% from 18 to 24, 27.1% from 25 to 44, 19.3% from 45 to 64, and 10.6% who were 65 years of age or older. The median age was 30 years. For every 100 females there were 96.5 males. For every 100 females age 18 and over, there were 93.5 males.

The median income for a household in the county was $29,808, and the median income for a family was $33,576. Males had a median income of $27,215 versus $20,883 for females. The per capita income for the county was $13,999. 25.4% of the population and 20.2% of families were below the poverty line. Out of the total people living in poverty, 34.4% are under the age of 18 and 12.7% are 65 or older.

Communities

Donaana-countymap
Map of Doña Ana County

Cities

Towns

Village

Census-designated places

Other places

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