RANKING · 2020 CENSUS · 33 SHOWN OF 33

Largest households, New Mexico counties · 2020

New Mexico counties ranked by average household size (2023 ACS). This list covers the 33 counties in New Mexico that qualify, ranked against each other statewide.

New MexicoAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDMost expensive homes Cheapest homes Highest median rent Lowest median rent Highest homeownership rate Highest renter share

YEAR2010 2020 2024

RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS 2000

01De Baca County, NMNM1,6473.56–

02McKinley County, NMNM68,1193.35–

03Socorro County, NMNM15,8383.23–

04Cibola County, NMNM26,8073.01–

05Lea County, NMNM74,7492.96–

06Rio Arriba County, NMNM39,8322.94–

07San Juan County, NMNM120,3402.84–

08Valencia County, NMNM82,0132.83–

09Sandoval County, NMNM159,5652.74–

10Otero County, NMNM70,3682.73–

11Doña Ana County, NMNM229,0912.67–

12Eddy County, NMNM62,5092.66–

13Luna County, NMNM25,4072.65–

14Chaves County, NMNM63,3642.65–

15Guadalupe County, NMNM4,3432.63–

16Curry County, NMNM46,6552.60–

17Roosevelt County, NMNM18,6152.60–

18Quay County, NMNM8,4542.57–

19Torrance County, NMNM16,1002.56–

20Taos County, NMNM34,5642.56–

21Union County, NMNM3,8442.48–

22Bernalillo County, NMNM667,6012.46–

23Harding County, NMNM6172.45–

24Los Alamos County, NMNM19,4072.39–

25Hidalgo County, NMNM3,9292.37–

26Santa Fe County, NMNM156,9072.33–

27Grant County, NMNM27,2522.31–

28Lincoln County, NMNM19,8442.29–

29Catron County, NMNM3,8272.22–

30San Miguel County, NMNM26,2602.17–

31Sierra County, NMNM11,3951.98–

32Mora County, NMNM4,0511.97–

33Colfax County, NMNM12,1841.94–

SHOWING 1–33 OF 33

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