De Amerikaanse staat New Mexico is onderverdeeld in 33 county's.
400px|right|thumb|County's van New Mexico
CountyInwonersU.S. Census Bureau: Annual Estimates of the Population for Counties: April 1, 2000 to July 1, 20071 juli 2007HoofdplaatsInwonersU.S. Census Bureau: Population Estimates for All Places: 2000 to 20071 juli 2007Bernalillo629.292Albuquerque518.271Catron3431Reserve326Chaves62.595Roswell45.569Cibola27.261Grants8876Colfax13.216Raton6584Curry45.328Clovis33.182De Baca1916Fort Sumner983Doña Ana198.791Las Cruces89.722Eddy51.002Carlsbad25.033Grant29.699Silver City9977Guadalupe4447Santa Rosa2534Harding716Mosquero87Hidalgo4945Lordsburg2665Lea58.043Lovington9793Lincoln20.783Carrizozo1029Los Alamos18.558Los Alamos12.090Luna26.996Deming15.277McKinley70.059Gallup18.802Mora5069Mora3929Otero63.129Alamogordo35.607Quay8971Tucumcari5123Rio Arriba40.827Tierra Amarilla3447Roosevelt19.142Portales11.992San Juan122.427Aztec6810San Miguel28.655Las Vegas13.539Sandoval117.866Bernalillo7121Santa Fe142.955Santa Fe73.199Sierra12.316Truth or Consequences6689Socorro18.118Socorro8418Taos31.608Taos5265Torrance16.598Estancia1529Union3792Clayton2100Valencia71.364Los Lunas12.115
New Mexico