RANKING · 1990 CENSUS · 33 SHOWN OF 33

Least racially diverse, New Mexico counties · 1990

New Mexico counties with the lowest CensusEasy Diversity Score, where most residents share the same race or ethnicity (2023 ACS). This list covers the 33 counties in New Mexico that qualify, ranked against each other statewide.

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New MexicoAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS 2000

01Los Alamos County, NMNM19,40733−7%

02Catron County, NMNM3,82746+9%

03Sierra County, NMNM11,39548−5%

04Union County, NMNM3,84452−11%

05De Baca County, NMNM1,64753−8%

06Lincoln County, NMNM19,84455+11%

07McKinley County, NMNM68,11960−10%

08Grant County, NMNM27,25263−1%

09Torrance County, NMNM16,10065+4%

10Hidalgo County, NMNM3,92965+5%

11Luna County, NMNM25,40765+6%

12Doña Ana County, NMNM229,09166+12%

13Lea County, NMNM74,74967−0%

14Otero County, NMNM70,36867+4%

15Roosevelt County, NMNM18,61567+13%

16Chaves County, NMNM63,36469+6%

17Eddy County, NMNM62,50969+11%

18Colfax County, NMNM12,18471+12%

19Curry County, NMNM46,65571+6%

20Santa Fe County, NMNM156,90773+14%

21Harding County, NMNM61773+17%

22Bernalillo County, NMNM667,60174+9%

23San Juan County, NMNM120,34074+56%

24Quay County, NMNM8,45475+22%

25Socorro County, NMNM15,83875+18%

26Valencia County, NMNM82,01376+21%

27Guadalupe County, NMNM4,34376+107%

28Sandoval County, NMNM159,56576+23%

29Taos County, NMNM34,56478+32%

30Rio Arriba County, NMNM39,83278+131%

31San Miguel County, NMNM26,26080+95%

32Mora County, NMNM4,05180+123%

33Cibola County, NMNM26,80782+29%

SHOWING 1–33 OF 33

Download CSV (full list, 33 rows)How this score is calculated

UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES