New Mexico County Map
Labeled county boundary map and complete directory of all 33 counties in New Mexico (NM, State FIPS 35). View 5-digit FIPS codes, county seats, land area in square miles, and official county government websites below.
Showing all 33 counties in New Mexico. Use the search box below to filter by county name, 5-digit FIPS code, or county seat.
New Mexico County Statistics & Summary
Total Counties
33
Largest by Land Area
Catron County
Smallest by Land Area
Los Alamos County
All 33 Counties in New Mexico (FIPS, County Seat & Official Website)
| County Name | 5-Digit FIPS | Seat / Administrative Center | Land Area (sq mi) | Coordinates | Official Website |
|---|---|---|---|---|---|
| Bernalillo County | 35001 | Albuquerque | 1,161.7 | 35.054°, -106.669° | Official Site |
| Catron County | 35003 | Reserve | 6,924.2 | 33.902°, -108.392° | Official Site |
| Chaves County | 35005 | Roswell | 6,067.2 | 33.362°, -104.470° | Official Site |
| Cibola County | 35006 | Grants | 4,540 | 34.928°, -107.993° | Official Site |
| Colfax County | 35007 | Raton | 3,758 | 36.613°, -104.640° | Official Site |
| Curry County | 35009 | Clovis | 1,405.5 | 34.573°, -103.346° | Official Site |
| De Baca County | 35011 | Fort Sumner | 2,323.1 | 34.359°, -104.369° | Official Site |
| Doña Ana County | 35013 | Las Cruces | 3,808.2 | 32.346°, -106.835° | — |
| Eddy County | 35015 | Carlsbad | 4,176.3 | 32.458°, -104.306° | Official Site |
| Grant County | 35017 | Silver City | 3,961.2 | 32.732°, -108.382° | Official Site |
| Guadalupe County | 35019 | Santa Rosa | 3,029.8 | 34.870°, -104.785° | Official Site |
| Harding County | 35021 | Mosquero | 2,125.5 | 35.859°, -103.853° | Official Site |
| Hidalgo County | 35023 | Lordsburg | 3,438.6 | 31.899°, -108.752° | Official Site |
| Lea County | 35025 | Lovington | 4,391.6 | 32.796°, -103.413° | Official Site |
| Lincoln County | 35027 | Carrizozo | 4,831.1 | 33.741°, -105.450° | Official Site |
| Los Alamos County | 35028 | Los Alamos | 109.1 | 35.870°, -106.308° | Official Site |
| Luna County | 35029 | Deming | 2,965.2 | 32.184°, -107.747° | Official Site |
| McKinley County | 35031 | Gallup | 5,451.1 | 35.584°, -108.253° | Official Site |
| Mora County | 35033 | Mora | 1,926.3 | 35.983°, -104.922° | Official Site |
| Otero County | 35035 | Alamogordo | 6,612.6 | 32.616°, -105.751° | Official Site |
| Quay County | 35037 | Tucumcari | 2,874 | 35.107°, -103.548° | Official Site |
| Rio Arriba County | 35039 | Tierra Amarilla | 5,860.9 | 36.510°, -106.694° | Official Site |
| Roosevelt County | 35041 | Portales | 2,446.1 | 34.021°, -103.483° | Official Site |
| San Juan County | 35045 | Aztec | 5,517.2 | 36.541°, -108.343° | Official Site |
| San Miguel County | 35047 | Las Vegas | 4,721.5 | 35.477°, -104.803° | Official Site |
| Sandoval County | 35043 | Bernalillo | 3,710.2 | 35.685°, -106.883° | Official Site |
| Santa Fe County | 35049 | Santa Fe | 1,910.4 | 35.514°, -105.964° | Official Site |
| Sierra County | 35051 | Truth or Consequences | 4,181.2 | 33.117°, -107.182° | Official Site |
| Socorro County | 35053 | Socorro | 6,646.4 | 33.992°, -106.939° | Official Site |
| Taos County | 35055 | Taos | 2,202.4 | 36.577°, -105.639° | Official Site |
| Torrance County | 35057 | Estancia | 3,345.2 | 34.555°, -105.890° | Official Site |
| Union County | 35059 | Clayton | 3,825.1 | 36.488°, -103.476° | Official Site |
| Valencia County | 35061 | Los Lunas | 1,066.7 | 34.717°, -106.807° | Official Site |
How New Mexico Counties and 5-Digit FIPS Codes Work
In U.S. Census Bureau TIGER/Line geography, New Mexico (NM) is assigned the 2-digit state Federal Information Processing Series (FIPS) code 35 and covers 121,313 square miles of land area across 33 counties in the Mountain Time (MT) zone (with Santa Fe as the state capital). Every county in the directory above carries a unique 5-digit GEOID formed by combining state prefix 35 with a 3-digit county code (ranging alphabetically from Bernalillo County at 35001 to Valencia County at 35061).
Because U.S. Postal Service 5-digit ZIP Codes follow mail carrier delivery routes rather than local government borders, many postal addresses in New Mexico carry a neighboring city’s mailing name or sit inside a multi-county ZIP Code Tabulation Area (ZCTA). Property tax assessments, deed recording, circuit and county court venue, voter registration precincts, sheriff jurisdiction, and county sales tax rates in New Mexico are determined by the legal county boundary shown on the map above rather than the postal city name on an envelope.
Land area figures in square miles and internal centroid coordinates (INTPTLAT, INTPTLON) come directly from the U.S. Census Bureau’s current TIGERweb State_County benchmark, while 33 administrative seats and 32 verified official government websites are cross-referenced from Wikidata (CC0). Need a clean outline worksheet without county labels, or want to verify which New Mexico county a specific home or business address sits in? Open the Blank Map of New Mexico, run a street-segment check on Address to County Lookup, check multi-county postal overlap on ZIP Code to County Lookup, or browse all 50 states on the National U.S. County Map.
Adjacent State County Maps
Explore county maps and FIPS directories for states bordering New Mexico: