New Mexico Counties by Population (2024)

Population

50K

100K

150K

200K

250K

300K

350K

400K

450K

500K

550K

600K

650K

Hover/click a county for data.

33 counties

County
2024 Pop.
Change (2020)
Area (mi²)
Density (/mi²)
Location
Bernalillo County670,215-0.98%448577Bernalillo County location
Doña Ana County226,8903.1%1.5K60Doña Ana County location
Sandoval County158,2756.02%1.4K43Sandoval County location
Santa Fe County156,1510.71%73782Santa Fe County location
San Juan County120,781-0.49%2.1K22San Juan County location
Valencia County80,0814.85%41275Valencia County location
Lea County71,859-3.73%1.7K16Lea County location
Otero County69,1531.9%2.6K10Otero County location
McKinley County67,663-6.79%2.1K12McKinley County location
Chaves County63,230-2.95%2.3K10Chaves County location
Eddy County60,347-3.19%1.6K14Eddy County location
Curry County47,014-2.8%54333Curry County location
Rio Arriba County39,761-1.27%2.3K7Rio Arriba County location
Taos County34,220-0.71%85016Taos County location
Grant County27,251-3.38%1.5K7Grant County location
Cibola County26,689-1.52%1.8K6Cibola County location
San Miguel County26,434-2.57%1.8K6San Miguel County location
Luna County24,939-2.04%1.1K8Luna County location
Lincoln County19,715-2.92%1.9K4Lincoln County location
Los Alamos County19,6151.01%42180Los Alamos County location
Roosevelt County18,716-2.26%9448Roosevelt County location
Torrance County15,8835.45%1.3K5Torrance County location
Socorro County15,815-4.45%2.6K2Socorro County location
Colfax County12,238-0.92%1.5K3Colfax County location
Sierra County11,502-0.52%1.6K3Sierra County location
Quay County8,491-2.54%1.1K3Quay County location
Guadalupe County4,268-3.85%1.2K1Guadalupe County location
Mora County4,099-2.2%7432Mora County location
Union County3,946-3.07%1.5K1Union County location
Hidalgo County3,919-5.88%1.3K1Hidalgo County location
Catron County3,8576.96%2.7K1Catron County location
De Baca County1,622-3.51%8971De Baca County location
Harding County627-3.98%8200.30Harding County location
  1. New Mexico State Data Center
  2. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  3. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  4. American Community Survey (2009 - 2013)
  5. Census QuickFacts
  6. Historical Populations of States and Counties (1790 - 1990)

Sources