Population of Counties in New Mexico (2018)

Name 2018 Population Growth Since 2010
Bernalillo County676,7731.92%
Doña Ana County215,5792.60%
Santa Fe County148,7502.92%
Sandoval County142,5077.65%
San Juan County126,926-2.52%
Valencia County75,940-1.11%
McKinley County72,5641.25%
Lea County68,7596.45%
Otero County65,8172.22%
Chaves County64,866-1.31%
Eddy County56,9975.73%
Curry County49,8121.73%
Rio Arriba County39,159-2.83%
Taos County32,795-0.31%
San Miguel County27,748-5.63%
Grant County27,687-5.77%
Cibola County26,853-1.70%
Luna County24,078-4.00%
Lincoln County19,395-5.16%
Roosevelt County18,847-5.87%
Los Alamos County18,7384.13%
Socorro County16,798-5.57%
Torrance County15,506-5.43%
Colfax County12,174-11.35%
Sierra County11,116-7.67%
Quay County8,306-8.38%
Mora County4,551-6.99%
Guadalupe County4,429-5.65%
Hidalgo County4,305-11.49%
Union County4,187-7.82%
Catron County3,587-4.35%
De Baca County1,829-9.86%
Harding County692-0.29%