Dona Ana County (Doña Ana County), New Mexico

Dona Ana County: county in New Mexico, United States

About

Doña Ana County is a county located in the U.S. state of New Mexico. As of the 2010 census, the population was 209,233 and a population density of 21 people per km². After 10 years in 2020 county had an estimated population of 221,262 inhabitants. Its county seat is Las Cruces. The county was created 174 years ago in 1851.

Doña Ana County locator map
Location of Doña Ana County on New Mexico map.

County Snapshot

Doña Ana County at a glance

Doña Ana County currently has 10 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

Browse county places

Mapped populated places

10

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Quick Facts about Doña Ana County

Population 221,262 (2020)
Country United States of America
State New Mexico (United States)
Twitter username dacinformation
Area 9888 km2
Water as percent of area 0.2%
Land as percent of area 99.8%
Latitude & Longitude 32.3527,-106.8328
Altitude 3,944 feet / 1202 meters
Capital Las Cruces
Establishment January 01, 1852
Time Zone America/Denver
Local time 17:07:14 (18th April 2026)
Density 22 Pop. per km² as of 2020
Population growth 5.44% (2010-2020)
Weather 47℉ Mostly Clear 7-days weather
Dona Ana County New Mexico Courthouse image
Dona Ana County New Mexico Courthouse image

Geography

Doña Ana County is located at 32°21'10"N 106°49'58"W (32.3526800, -106.8328000). It has 4 neighbors: Luna County, Otero County, Sierra County and El Paso County.

Dona Ana County map

Click "full screen" full screen map icon to open full mode. View satellite images

The largest city of Doña Ana County is Las Cruces with a population of 105,096. Other cities include, Sunland Park population 18,449, Anthony population 9,276, Vado population 3,194 and Mesilla population 1,844. See all Doña Ana County cities & populated places.

Doña Ana County Populated Places

Cities, towns, neighborhoods & other populated places in Doña Ana County.

City Name Population Title
Las Cruces 105,096 The second most populous city in New Mexico.
Sunland Park 18,449 City in Doña Ana County, New Mexico, United States
Anthony 9,276 City in New Mexico
Vado 3,194 City in Doña Ana County, New Mexico, United States of America
Mesilla 1,844 City in Doña Ana County, New Mexico, United States of America
Radium Springs 1,699 City in Doña Ana County, New Mexico, United States of America
Hatch 1,678 Village in Doña Ana County, New Mexico, New Mexico
White Sands 1,651 Census-designated place in New Mexico, United States
Doña Ana 1,211 Census designated place
San Ysidro 204 Census-designated place in Doña Ana County, New Mexico, United States

Weather

47°F
Mostly Clear
6 to 18 mph NW Tonight

Mostly clear. Low around 47, with temperatures rising to around 51 overnight. Northwest wind 6 to 18 mph, with gusts as high as 28 mph.

7-Day Forecast

Official website of Doña Ana County

Official Website Twitter
  • Las Cruces

Demographics

The population of Doña Ana County increased by 5.44% in 10 years.

Year Population % Change Method
2010 209,233 - census
2011 212,772 1.66% estimation process
2012 213,952 0.55% estimation process
2013 213,460 -0.23% estimation process
2015 214,295 0.39% demographic balance
2020 221,262 3.15% estimation process
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People born in Doña Ana County (3)

People born in Doña Ana County, including poet, novelist and writer from the United States Benjamin Alire Sáenz, politician Roberto Mondragón, Alan Nelson, .

More notable people

New Mexico Other Counties (more counties)

County Name Population Title
Bernalillo County 681,666 County in New Mexico, United States
Albuquerque 562,540 The third most populous city in New Mexico and the center of the Albuquerque metropolitan area.
Santa Fe County 151,946 County in New Mexico, United States
Sandoval County 148,904 County in New Mexico, United States
San Juan County 123,312 County in southeastern Utah, United States
Las Cruces 105,096 The second most populous city in New Mexico.
Rio Rancho 99,885 The second most populous city in Sandoval County, New Mexico.
Santa Fe 84,996 The capital of New Mexico.
Valencia County 77,574 County in New Mexico, United States
Lea County 71,830 County in New Mexico, United States
McKinley County 70,824 County in New Mexico, United States
Otero County 67,967 County in New Mexico, United States
Chaves County 64,711 County in New Mexico, United States
Eddy County 58,418 County in New Mexico, United States
Curry County 48,793 County in Oregon, United States
Roswell 47,596 A city in Chaves County, New Mexico.