RANKING · 2024 ACS · 33 SHOWN OF 33

Largest households, New Mexico counties

New Mexico counties ranked by average household size (2024 ACS). This list covers the 33 counties in New Mexico that qualify, ranked against each other statewide. The median across all 33 is 2.54. Biggest climber in the top 100 since 2020: Hidalgo County, NM, up 17 places to #8.

New MexicoAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR2010 2020 2024

RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS 2010

01▲1McKinley County, NMNM68,1193.25−18%

02▲2Cibola County, NMNM26,8072.98−4%

03Socorro County, NMNM15,8382.94+1%

04▲1Lea County, NMNM74,7492.90+3%

05▲2San Juan County, NMNM120,3402.86−5%

06▲2Valencia County, NMNM82,0132.78+3%

07▲6Luna County, NMNM25,4072.720%

08▲17Hidalgo County, NMNM3,9292.69−8%

09Sandoval County, NMNM159,5652.68−3%

10Otero County, NMNM70,3682.67+4%

11▲4Guadalupe County, NMNM4,3432.65+6%

12▲2Chaves County, NMNM63,3642.61−1%

13▲10Harding County, NMNM6172.59−12%

14▼3Doña Ana County, NMNM229,0912.58−5%

15▼3Eddy County, NMNM62,5092.54−5%

16▼10Rio Arriba County, NMNM39,8322.54−4%

17▲2Torrance County, NMNM16,1002.54−3%

18▼2Curry County, NMNM46,6552.51−5%

19▲2Union County, NMNM3,8442.46−2%

20▼3Roosevelt County, NMNM18,6152.40−12%

21▲6Grant County, NMNM27,2522.39+2%

22▲2Los Alamos County, NMNM19,4072.35−1%

23▼1Bernalillo County, NMNM667,6012.32−6%

24▼4Taos County, NMNM34,5642.20−11%

25▲8Colfax County, NMNM12,1842.17−7%

26Santa Fe County, NMNM156,9072.17−6%

27▲3San Miguel County, NMNM26,2602.16−6%

28▲4Mora County, NMNM4,0512.10−23%

29▲2Sierra County, NMNM11,3952.07−16%

30▼2Lincoln County, NMNM19,8442.01−13%

31▼2Catron County, NMNM3,8271.97−2%

32▼14Quay County, NMNM8,4541.93−17%

33▼32De Baca County, NMNM1,6471.90−16%

SHOWING 1–33 OF 33

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES