Written and Fact-checked by Whereig Editors, Reviewed by Mukesh Kumar| Updated On: May 15, 2026
The U.S. state of New Mexico is divided into 33 Counties. Explore the New Mexico County Map, all Counties list along with their County Seats in alphabetical order and their population, areas and the date of formation.
New Mexico County Map
About New Mexico County Map: The map showing the county boundary, all counties boundary, state capital and neighbouring states.
Related New Mexico Maps
About Counties of New Mexico
New Mexico is one of the states in United States of America that is situated in the South-western region of the country. It is one of the mountain states of the country. New Mexico is the fifth largest state in the country. The total area of the state is 121298 square miles. The state ranks as the 36th state in the aspect of population. The state is bordered by Colorado to the north, Oklahoma and Texas to the east, Mexico in the south and Arizona in the west. The capital of New Mexico is Santa Fe. The state is also known as Land of Enchantment. New Mexico is wonderful and colourful place to visit. One would love to visit New Mexico for its charming and beautiful sceneries, wonderful national park and historical sites. New Mexico has a lot of nick names as it is called with ‘The Cactus State’, The Spanish State’, The Land of Sunshine and so on.
There are 33 Counties in New Mexico. Among Counties in New Mexico Bernalillo is the most populous county in the state. Bernalillo has the largest city called ‘Albuquerque’. It is situated in the central northern part of the state. The other famous cities of New Mexico are Las Cruces, Rio Rancho, and Santa Fe which also capital of the state New Mexico. Counties in New Mexico as well as the government give a lot of importance to Women to and often elect them as public servants. According a research conducted by Center for American Women and Politics at Rutgers University analyzed that two- third of non-white women have ever been elected as governors in the country are from New Mexico, even the present governor Grisham.
The state of New Mexico follows federal system like all other states of United States. New Mexico state government consists of Executive branch, Legislative branch and judicial branch of the government. The executive branch of the government is led by the governor, lieutenant governor, attorney general, Secretary of state, state auditor, state treasurer and other officials. The local government of Counties in New Mexico comprises of counties and municipalities. Counties are governed by an elected body of five members called County Commission, sheriff, clerk and treasurer. A municipality may consist of village, town or city. All the laws related to municipality are the same for villages, towns or cities.
The U.S. state of New Mexico has 33 Counties. This is list of New Mexico Counties and County Seats in alphabetical order along with check their population, areas and the date of formation.
List of Counties in New Mexico with County Seats
| S.N | County | County Seat | Population | Area | Formed |
|---|---|---|---|---|---|
| 1 | Bernalillo County | Albuquerque | 676,444 (2020 Census) | 1,166.15 sq mi (3,020 km2) | 1852 |
| 2 | Catron County | Reserve | 3,579 | 6,928.17 sq mi (17,944 km2) | 1921 |
| 3 | Chaves County | Roswell | 65,157 | 6,071.18 sq mi (15,725 km2) | 1889 |
| 4 | Cibola County | Grants | 27,004 | 4,539.63 sq mi (11,758 km2) | 1981 |
| 5 | Colfax County | Raton | 12,387 | 3,757.36 sq mi (9,732 km2) | 1869 |
| 6 | Curry County | Clovis | 48,697 | 1,405.78 sq mi (3,640 km2) | 1909 |
| 7 | De Baca County | Fort Sumner | 1,657 | 2,324.78 sq mi (6,021 km2) | 1917 |
| 8 | Doña Ana County | Las Cruces | 219,561 | 3,806.78 sq mi (9,860 km2) | 1852 |
| 9 | Eddy County | Carlsbad | 62,314 | 4,182.73 sq mi (10,833 km2) | 1887 |
| 10 | Grant County | Silver City | 28,185 | 3,965.70 sq mi (10,272 km2) | 1868 |
| 11 | Guadalupe County | Santa Rosa | 4,452 | 3,030.63 sq mi (7,849 km2) | 1891 |
| 12 | Harding County | Mosquero | 657 | 2,125.93 sq mi (5,506 km2) | 1921 |
| 13 | Hidalgo County | Lordsburg | 4,178 | 3,446.20 sq mi (8,926 km2) | 1920 |
| 14 | Lea County | Lovington | 74,455 | 4,392.94 sq mi (11,378 km2) | 1917 |
| 15 | Lincoln County | Carrizozo | 19,532 | 4,830.98 sq mi (12,512 km2) | 1869 |
| 16 | Los Alamos County | Los Alamos | 19,419 | 109.13 sq mi (283 km2) | 1949 |
| 17 | Luna County | Deming | 25,427 | 2,965.16 sq mi (7,679 km2) | 1901 |
| 18 | McKinley County | Gallup | 72,902 | 5,449.47 sq mi (14,114 km2) | 1899 |
| 19 | Mora County | Mora | 4,189 | 1,930.57 sq mi (4,999 km2) | 1859 |
| 20 | Otero County | Alamogordo | 67,839 | 6,626.84 sq mi (17,164 km2) | 1899 |
| 21 | Quay County | Tucumcari | 8,746 | 2,854.99 sq mi (7,394 km2) | 1903 |
| 22 | Rio Arriba County | Tierra Amarilla | 40,246 | 5,858.44 sq mi (15,173 km2) | 1852 |
| 23 | Roosevelt County | Portales | 18,869 | 2,448.74 sq mi (6,342 km2) | 1903 |
| 24 | Sandoval County | Bernalillo | 148,834 | 3,710.78 sq mi (9,611 km2) | 1903 |
| 25 | San Juan County | Aztec | 121,661 | 5,513.98 sq mi (14,281 km2) | 1887 |
| 26 | San Miguel County | Las Vegas | 27,945 | 4,716.66 sq mi (12,216 km2) | 1852 |
| 27 | Santa Fe County | Santa Fe | 154,823 | 1,909.20 sq mi (4,945 km2) | 1852 |
| 28 | Sierra County | Truth or Consequences | 11,576 | 4,179.62 sq mi (10,825 km2) | 1884 |
| 29 | Socorro County | Socorro | 16,637 | 6,646.88 sq mi (17,216 km2) | 1852 |
| 30 | Taos County | Taos | 33,907 | 2,203.05 sq mi (5,706 km2) | 1852 |
| 31 | Torrance County | Estancia | 16,446 | 3,344.97 sq mi (8,663 km2) | 1903 |
| 32 | Union County | Clayton | 4,079 | 3,830.19 sq mi (9,920 km2) | 1893 |
| 33 | Valencia County | Los Lunas | 76,569 | 1,068.63 sq mi (2,768 km2) | 1852 |
20 Largest Cities in New Mexico by County
| Rank | City | County | Population (2020 Census) | Latitude / Longitude |
|---|---|---|---|---|
| 1 | Albuquerque | Bernalillo County | 564,559 | 35.0844, -106.6504 |
| 2 | Las Cruces | Doña Ana County | 111,385 | 32.3199, -106.7637 |
| 3 | Rio Rancho | Sandoval County | 104,046 | 35.2328, -106.6630 |
| 4 | Santa Fe | Santa Fe County | 87,505 | 35.6870, -105.9378 |
| 5 | Roswell | Chaves County | 48,422 | 33.3943, -104.5230 |
| 6 | Farmington | San Juan County | 46,624 | 36.7281, -108.2187 |
| 7 | Clovis | Curry County | 37,775 | 34.4048, -103.2052 |
| 8 | Hobbs | Lea County | 40,508 | 32.7026, -103.1360 |
| 9 | Alamogordo | Otero County | 31,384 | 32.8995, -105.9603 |
| 10 | Carlsbad | Eddy County | 32,238 | 32.4207, -104.2288 |
| 11 | Gallup | McKinley County | 22,971 | 35.5281, -108.7426 |
| 12 | Deming | Luna County | 14,855 | 32.2687, -107.7586 |
| 13 | Los Lunas | Valencia County | 17,242 | 34.8062, -106.7334 |
| 14 | Chaparral | Doña Ana County | 14,631 | 32.0237, -106.3858 |
| 15 | Sunland Park | Doña Ana County | 17,359 | 31.7965, -106.5797 |
| 16 | Las Vegas | San Miguel County | 13,166 | 35.5939, -105.2239 |
| 17 | Portales | Roosevelt County | 11,131 | 34.1862, -103.3344 |
| 18 | Artesia | Eddy County | 12,875 | 32.8423, -104.4033 |
| 19 | Lovington | Lea County | 11,009 | 32.9440, -103.3486 |
| 20 | Silver City | Grant County | 9,704 | 32.7701, -108.2803 |
Top Tourist Attractions and Famous Places to Visit in New Mexico
- White Sands National Park - Otero County
- Carlsbad Caverns National Park - Eddy County
- Bandelier National Monument - Los Alamos County
- Chaco Culture National Historical Park - San Juan County
- Petroglyph National Monument - Albuquerque
- Gila Cliff Dwellings National Monument - Grant County
- Aztec Ruins National Monument - Aztec
- Capulin Volcano National Monument - Union County
- El Malpais National Monument - Cibola County
- El Morro National Monument - Ramah
- Organ Mountains-Desert Peaks National Monument - Doña Ana County
- Valles Caldera National Preserve - Sandoval County
- Taos Pueblo - Taos County
- Santa Fe Plaza - Santa Fe
- Historic Old Town Albuquerque - Albuquerque
- Sandia Peak Tramway - Albuquerque
- Meow Wolf House of Eternal Return - Santa Fe
- International UFO Museum and Research Center - Roswell
- Georgia O’Keeffe Museum - Santa Fe
- New Mexico Museum of Natural History and Science - Albuquerque
- Indian Pueblo Cultural Center - Albuquerque
- Rio Grande Gorge Bridge - Taos County
- Blue Hole - Santa Rosa
- Bottomless Lakes State Park - Chaves County
- City of Rocks State Park - Grant County
- Elephant Butte Lake State Park - Sierra County
- Rockhound State Park - Luna County
- Hyde Memorial State Park - Santa Fe County
- Heron Lake State Park - Rio Arriba County
- Navajo Lake State Park - San Juan County
- Brantley Lake State Park - Eddy County
- Cimarron Canyon State Park - Colfax County
- Sugarite Canyon State Park - Colfax County
- Santa Rosa Lake State Park - Guadalupe County
- Fort Union National Monument - Mora County
- Pecos National Historical Park - San Miguel County
- Turquoise Trail National Scenic Byway - Santa Fe to Albuquerque
- Shiprock Peak - San Juan County
- Bisti/De-Na-Zin Wilderness - San Juan County
- Albuquerque Biological Park - Albuquerque
New Mexico Counties Facts
| State | New Mexico |
| Capital | Santa Fe |
| Country | United States |
| Region | Southwestern United States |
| Total Counties | 33 Counties |
| Largest County (Area) | Catron County - 6,928.17 sq mi (17,944 km2) |
| Smallest County (Area) | Los Alamos County - 109.13 sq mi (283 km2) |
| Most Populous County | Bernalillo County - 676,444 (2020 Census) |
| Least Populous County | Harding County - 657 (2020 Census) |
| Largest City | Albuquerque |
| Population | 2,117,522 (2020 Census) |
| Land Area | 121,298 sq mi (314,161 km2) |
| Highest Point | Wheeler Peak - 13,161 ft (4,011 m) |
| Lowest Point | Red Bluff Reservoir - 2,842 ft (866 m) |
| Major Rivers | Rio Grande, Pecos River, Canadian River, San Juan River |
| National Park Sites | White Sands National Park, Carlsbad Caverns National Park, Chaco Culture National Historical Park |
| Famous Attractions | Taos Pueblo, Santa Fe Plaza, Sandia Peak Tramway, Roswell UFO Museum, Bandelier National Monument |
| Major Airports | Albuquerque International Sunport, Santa Fe Regional Airport |
| Time Zone | Mountain Time Zone (UTC -7) |
| Postal Abbreviation | NM |
| FIPS Code | 35 |
| Official Website | newmexico.gov |
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