| County
| FIPS Code
[2]
| County Seat
[3]
| Created
[3]
| Formed from
[4]
| Etymology
| Population
[3][5]
| Area
[3][5]
| Map
|
| Bernalillo County
| 001
| Albuquerque | 1852 | One of the nine original counties. | -
| &&&&&&&&&0556678.&&&&&0556,678
| &&&&&&&&&&&03020.&&&&&03,020 km²
(1,166 mi²) | Image:Map of New Mexico highlighting Bernalillo County.svg
|
| Catron County
| 003
| Reserve | 1921 | Part of Socorro County. | -
| &&&&&&&&&&&03543.&&&&&03,543
| &&&&&&&&&&&06928.&&&&&06,928 sq mi
(&&&&&&&&&&017943.&&&&&017,943 km²) | Image:Map of New Mexico highlighting Catron County.svg
|
| Chaves County
| 005
| Roswell | 1889 | Part of Lincoln County. | -
| &&&&&&&&&&061382.&&&&&061,382
| &&&&&&&&&&&06071.&&&&&06,071 sq mi
(&&&&&&&&&&015724.&&&&&015,724 km²) | Image:Map of New Mexico highlighting Chaves County.svg
|
| Cibola County
| 006
| Grants | 1981 | Part of Valencia County. | -
| &&&&&&&&&&025595.&&&&&025,595
| &&&&&&&&&&&04540.&&&&&04,540 sq mi
(&&&&&&&&&&011759.&&&&&011,759 km²) | Image:Map of New Mexico highlighting Cibola County.svg
|
| Colfax County
| 007
| Raton | 1869 | Part of Mora County. | -
| &&&&&&&&&&014189.&&&&&014,189
| &&&&&&&&&&&03757.&&&&&03,757 sq mi
(&&&&&&&&&&&09731.&&&&&09,731 km²) | Image:Map of New Mexico highlighting Colfax County.svg
|
| Curry County
| 009
| Clovis | 1909 | Parts of Quay County and Roosevelt County. | -
| &&&&&&&&&&045044.&&&&&045,044
| &&&&&&&&&&&01406.&&&&&01,406 sq mi
(&&&&&&&&&&&03642.&&&&&03,642 km²) | Image:Map of New Mexico highlighting Curry County.svg
|
| De Baca County
| 011
| Fort Sumner | 1917 | Parts of Chaves County and Guadalupe County. | -
| &&&&&&&&&&&02240.&&&&&02,240
| &&&&&&&&&&&02325.&&&&&02,325 sq mi
(&&&&&&&&&&&06022.&&&&&06,022 km²) | Image:Map of New Mexico highlighting De Baca County.svg
|
| Doña Ana County
| 013
| Las Cruces | 1852 | One of the nine original counties. | -
| &&&&&&&&&0174682.&&&&&0174,682
| &&&&&&&&&&&03807.&&&&&03,807 sq mi
(&&&&&&&&&&&09860.&&&&&09,860 km²) | Image:Map of New Mexico highlighting Doña Ana County.svg
|
| Eddy County
| 015
| Carlsbad | 1887 | Part of Lincoln County. | -
| &&&&&&&&&&051658.&&&&&051,658
| &&&&&&&&&&&04182.&&&&&04,182 sq mi
(&&&&&&&&&&010831.&&&&&010,831 km²) | Image:Map of New Mexico highlighting Eddy County.svg
|
| Grant County
| 017
| Silver City | 1868 | Part of Doña Ana County. | -
| &&&&&&&&&&031002.&&&&&031,002
| &&&&&&&&&&&03966.&&&&&03,966 sq mi
(&&&&&&&&&&010272.&&&&&010,272 km²) | Image:Map of New Mexico highlighting Grant County.svg
|
| Guadalupe County
| 019
| Santa Rosa | 1891 | Part of San Miguel County. | -
| &&&&&&&&&&&04680.&&&&&04,680
| &&&&&&&&&&&03031.&&&&&03,031 sq mi
(&&&&&&&&&&&07850.&&&&&07,850 km²) | Image:Map of New Mexico highlighting Guadalupe County.svg
|
| Harding County
| 021
| Mosquero | 1921 | Parts of Mora County and Union County. | -
| &&&&&&&&&&&&0810.&&&&&0810
| &&&&&&&&&&&02126.&&&&&02,126 sq mi
(&&&&&&&&&&&05506.&&&&&05,506 km²) | Image:Map of New Mexico highlighting Harding County.svg
|
| Hidalgo County
| 023
| Lordsburg | 1920 | Part of Grant County. | -
| &&&&&&&&&&&05932.&&&&&05,932
| &&&&&&&&&&&03446.&&&&&03,446 sq mi
(&&&&&&&&&&&08925.&&&&&08,925 km²) | Image:Map of New Mexico highlighting Hidalgo County.svg
|
| Lea County
| 025
| Lovington | 1917 | Parts of Chaves County and Eddy County. | -
| &&&&&&&&&&055511.&&&&&055,511
| &&&&&&&&&&&04393.&&&&&04,393 sq mi
(&&&&&&&&&&011378.&&&&&011,378 km²) | Image:Map of New Mexico highlighting Lea County.svg
|
| Lincoln County
| 027
| Carrizozo | 1869 | Part of Socorro County. | -
| &&&&&&&&&&019411.&&&&&019,411
| &&&&&&&&&&&04831.&&&&&04,831 sq mi
(&&&&&&&&&&012512.&&&&&012,512 km²) | Image:Map of New Mexico highlighting Lincoln County.svg
|
| Los Alamos County
| 028
| Los Alamos | 1949 | Parts of Sandoval County and Santa Fe County. | -
| &&&&&&&&&&018343.&&&&&018,343
| &&&&&&&&&&&&0109.&&&&&0109 sq mi
(&&&&&&&&&&&&0282.&&&&&0282 km²) | Image:Map of New Mexico highlighting Los Alamos County.svg
|
| Luna County
| 029
| Deming | 1901 | Parts of Doña Ana County and Grant County. | -
| &&&&&&&&&&025016.&&&&&025,016
| &&&&&&&&&&&02965.&&&&&02,965 sq mi
(&&&&&&&&&&&07679.&&&&&07,679 km²) | Image:Map of New Mexico highlighting Luna County.svg
|
| McKinley County
| 031
| Gallup | 1899 | Part of Bernalillo County. | -
| &&&&&&&&&&074798.&&&&&074,798
| &&&&&&&&&&&05449.&&&&&05,449 sq mi
(&&&&&&&&&&014113.&&&&&014,113 km²) | Image:Map of New Mexico highlighting McKinley County.svg
|
| Mora County
| 033
| Mora | 1859 | Part of Taos County. | -
| &&&&&&&&&&&05180.&&&&&05,180
| &&&&&&&&&&&01931.&&&&&01,931 sq mi
(&&&&&&&&&&&05001.&&&&&05,001 km²) | Image:Map of New Mexico highlighting Mora County.svg
|
| Otero County
| 035
| Alamogordo | 1899 | Parts of Doña Ana County and Lincoln County. | -
| &&&&&&&&&&062298.&&&&&062,298
| &&&&&&&&&&&06627.&&&&&06,627 sq mi
(&&&&&&&&&&017164.&&&&&017,164 km²) | Image:Map of New Mexico highlighting Otero County.svg
|
| Quay County
| 037
| Tucumcari | 1903 | Part of Guadalupe County. | -
| &&&&&&&&&&010155.&&&&&010,155
| &&&&&&&&&&&02855.&&&&&02,855 sq mi
(&&&&&&&&&&&07394.&&&&&07,394 km²) | Image:Map of New Mexico highlighting Quay County.svg
|
| Rio Arriba County
| 039
| Tierra Amarilla | 1852 | One of the nine original counties. | -
| &&&&&&&&&&041190.&&&&&041,190
| &&&&&&&&&&&05858.&&&&&05,858 sq mi
(&&&&&&&&&&015172.&&&&&015,172 km²) | Image:Map of New Mexico highlighting Rio Arriba County.svg
|
| Roosevelt County
| 041
| Portales | 1903 | Parts of Chaves County and Guadalupe County. | -
| &&&&&&&&&&018018.&&&&&018,018
| &&&&&&&&&&&02449.&&&&&02,449 sq mi
(&&&&&&&&&&&06343.&&&&&06,343 km²) | Image:Map of New Mexico highlighting Roosevelt County.svg
|
| Sandoval County
| 043
| Bernalillo | 1903 | Part of Bernalillo County. | -
| &&&&&&&&&&089908.&&&&&089,908
| &&&&&&&&&&&03710.&&&&&03,710 sq mi
(&&&&&&&&&&&09609.&&&&&09,609 km²) | Image:Map of New Mexico highlighting Sandoval County.svg
|
| San Juan County
| 045
| Aztec | 1887 | Part of Rio Arriba County. | -
| &&&&&&&&&0113801.&&&&&0113,801
| &&&&&&&&&&&05514.&&&&&05,514 sq mi
(&&&&&&&&&&014281.&&&&&014,281 km²) | Image:Map of New Mexico highlighting San Juan County.svg
|
| San Miguel County
| 047
| Las Vegas | 1852 | One of the nine original counties. | -
| &&&&&&&&&&030126.&&&&&030,126
| &&&&&&&&&&&04717.&&&&&04,717 sq mi
(&&&&&&&&&&012217.&&&&&012,217 km²) | Image:Map of New Mexico highlighting San Miguel County.svg
|
| Santa Fe County
| 049
| Santa Fe | 1852 | One of the nine original counties. | -
| &&&&&&&&&0129292.&&&&&0129,292
| &&&&&&&&&&&01909.&&&&&01,909 sq mi
(&&&&&&&&&&&04944.&&&&&04,944 km²) | Image:Map of New Mexico highlighting Santa Fe County.svg
|
| Sierra County
| 051
| Truth or Consequences | 1884 | Parts of Doña Ana County and Socorro County. | -
| &&&&&&&&&&013270.&&&&&013,270
| &&&&&&&&&&&04180.&&&&&04,180 sq mi
(&&&&&&&&&&010826.&&&&&010,826 km²) | Image:Map of New Mexico highlighting Sierra County.svg
|
| Socorro County
| 053
| Socorro | 1852 | One of the nine original counties. | -
| &&&&&&&&&&018078.&&&&&018,078
| &&&&&&&&&&&06647.&&&&&06,647 sq mi
(&&&&&&&&&&017216.&&&&&017,216 km²) | Image:Map of New Mexico highlighting Socorro County.svg
|
| Taos County
| 055
| Taos | 1852 | One of the nine original counties. | -
| &&&&&&&&&&029979.&&&&&029,979
| &&&&&&&&&&&02203.&&&&&02,203 sq mi
(&&&&&&&&&&&05706.&&&&&05,706 km²) | Image:Map of New Mexico highlighting Taos County.svg
|
| Torrance County
| 057
| Estancia | 1903 | Parts of Bernalillo County and Valencia County. | -
| &&&&&&&&&&016911.&&&&&016,911
| &&&&&&&&&&&03345.&&&&&03,345 sq mi
(&&&&&&&&&&&08664.&&&&&08,664 km²) | Image:Map of New Mexico highlighting Torrance County.svg
|
| Union County
| 059
| Clayton | 1893 | Parts of Colfax County, Mora County and San Miguel County. | -
| &&&&&&&&&&&04174.&&&&&04,174
| &&&&&&&&&&&03830.&&&&&03,830 sq mi
(&&&&&&&&&&&09920.&&&&&09,920 km²) | Image:Map of New Mexico highlighting Union County.svg
|
| Valencia County
| 061
| Los Lunas | 1852 | One of the nine original counties. | -
| &&&&&&&&&&066152.&&&&&066,152
| &&&&&&&&&&&01068.&&&&&01,068 sq mi
(&&&&&&&&&&&02766.&&&&&02,766 km²) | Image:Map of New Mexico highlighting Valencia County.svg
|
es:Lista de condados de Nuevo México
fr:Comtés de l'État du Nouveau-Mexique
ko:뉴멕시코 주의 군
ja:ニューメキシコ州の郡一覧
no:Liste over fylker i New Mexico
sl:Seznam okrožij v Novi Mehiki
