RANKING · 2000 CENSUS · 58 SHOWN OF 58

Largest by population, California counties · 2000

The most populous California counties as of the 2000 population estimates. 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

RELATEDFastest growing Fastest shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR1990 2000 2010 2020 2025

RANKPLACESTATETOTAL POPULATIONVS 1990

01Los Angeles County, CACA9,519,338+7%

02Orange County, CACA2,846,289+18%

03San Diego County, CACA2,813,833+13%

04San Bernardino County, CACA1,709,434+21%

05Santa Clara County, CACA1,682,585+12%

06Riverside County, CACA1,545,387+32%

07Alameda County, CACA1,443,741+13%

08Sacramento County, CACA1,223,499+18%

09Contra Costa County, CACA948,816+18%

10Fresno County, CACA799,407+20%

11San Francisco County, CACA776,733+7%

12Ventura County, CACA753,197+13%

13San Mateo County, CACA707,161+9%

14Kern County, CACA661,645+22%

15San Joaquin County, CACA563,598+17%

16Sonoma County, CACA458,614+18%

17Stanislaus County, CACA446,997+21%

18Monterey County, CACA401,762+13%

19Santa Barbara County, CACA399,347+8%

20Solano County, CACA394,542+16%

21Tulare County, CACA368,021+18%

22Santa Cruz County, CACA255,602+11%

23Placer County, CACA248,399+44%

24Marin County, CACA247,289+7%

25San Luis Obispo County, CACA246,681+14%

26Merced County, CACA210,554+18%

27Butte County, CACA203,171+12%

28Yolo County, CACA168,660+20%

29Shasta County, CACA163,256+11%

30El Dorado County, CACA156,299+24%

31Imperial County, CACA142,361+30%

32Kings County, CACA129,461+28%

33Humboldt County, CACA126,518+6%

34Napa County, CACA124,279+12%

35Madera County, CACA123,109+40%

36Nevada County, CACA92,033+17%

37Mendocino County, CACA86,265+7%

38Sutter County, CACA78,930+23%

39Yuba County, CACA60,219+3%

40Lake County, CACA58,309+15%

41Tehama County, CACA56,039+13%

42Tuolumne County, CACA54,501+12%

43San Benito County, CACA53,234+45%

44Siskiyou County, CACA44,301+2%

45Calaveras County, CACA40,554+27%

46Amador County, CACA35,100+17%

47Lassen County, CACA33,828+23%

48Del Norte County, CACA27,507+17%

49Glenn County, CACA26,453+7%

50Plumas County, CACA20,824+5%

51Colusa County, CACA18,804+16%

52Inyo County, CACA17,945−2%

53Mariposa County, CACA17,130+20%

54Trinity County, CACA13,022−0%

55Mono County, CACA12,853+29%

56Modoc County, CACA9,449−2%

57Sierra County, CACA3,555+7%

58Alpine County, CACA1,208+9%

SHOWING 1–58 OF 58

Download CSV (full list, 58 rows)

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