RANKING · 2010 CENSUS · 58 SHOWN OF 58

Largest households, California counties · 2010

California counties ranked by average household size (2010 ACS). This list covers the 58 counties in California that qualify, ranked against each other statewide.

CaliforniaAll 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 –

01Merced County, CACA297,2603.36–

02Tulare County, CACA485,1463.35–

03Imperial County, CACA181,4113.34–

04Kings County, CACA154,3273.30–

05Madera County, CACA167,9273.30–

06San Bernardino County, CACA2,224,0913.29–

07Fresno County, CACA1,035,4563.14–

08Kern County, CACA927,0683.14–

09San Benito County, CACA70,0823.14–

10Monterey County, CACA433,7293.12–

11Riverside County, CACA2,544,9163.12–

12San Joaquin County, CACA823,8153.07–

13Stanislaus County, CACA557,7193.06–

14Ventura County, CACA830,8513.02–

15Los Angeles County, CACA9,694,9342.97–

16Orange County, CACA3,149,5072.97–

17Sutter County, CACA98,7872.95–

18Yuba County, CACA88,6912.93–

19Colusa County, CACA21,8362.91–

20Glenn County, CACA28,1412.89–

21Alpine County, CACA1,0432.87–

22Santa Clara County, CACA1,914,3912.86–

23Solano County, CACA455,3762.86–

24Santa Barbara County, CACA442,0652.81–

25Contra Costa County, CACA1,170,0702.75–

26San Diego County, CACA3,282,2482.75–

27Alameda County, CACA1,636,6302.72–

28San Mateo County, CACA743,5682.72–

29Yolo County, CACA224,4102.70–

30Sacramento County, CACA1,618,4602.69–

31Santa Cruz County, CACA258,8522.63–

32Mono County, CACA12,5052.61–

33Napa County, CACA132,9492.61–

34El Dorado County, CACA192,3232.60–

35Tehama County, CACA64,6652.60–

36Placer County, CACA442,0812.58–

37Del Norte County, CACA26,4102.56–

38Lake County, CACA67,7722.53–

39Shasta County, CACA181,6482.52–

40Sonoma County, CACA486,4442.52–

41Butte County, CACA209,2112.50–

42Mendocino County, CACA88,1222.49–

43Calaveras County, CACA46,6052.44–

44San Luis Obispo County, CACA282,3672.43–

45Humboldt County, CACA131,6472.38–

46Lassen County, CACA28,1172.38–

47Nevada County, CACA101,9112.36–

48Sierra County, CACA3,0982.34–

49Marin County, CACA253,6942.33–

50Modoc County, CACA8,4262.33–

51Amador County, CACA41,8762.31–

52Inyo County, CACA18,1582.31–

53San Francisco County, CACA826,0792.31–

54Mariposa County, CACA16,9182.28–

55Tuolumne County, CACA53,1602.28–

56Trinity County, CACA15,7202.21–

57Siskiyou County, CACA42,0132.18–

58Plumas County, CACA18,5832.01–

SHOWING 1–58 OF 58

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS