RANKING · 2000 CENSUS · 58 SHOWN OF 58

Largest senior population, California counties · 2000

California counties home to the most residents aged 65 and over as of 2000. Ranked by number of people, not the senior share. This list covers the 58 counties in California that qualify, ranked against each other statewide.

CaliforniaAll states All rankings

SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPRESIDENTS 65 AND OVERVS 1990

01Los Angeles County, CACA9,694,934926,673+8%

02San Diego County, CACA3,282,248313,750+15%

03Orange County, CACA3,149,507280,763+28%

04Riverside County, CACA2,544,916195,964+27%

05Santa Clara County, CACA1,914,391160,527+25%

06Alameda County, CACA1,636,630147,591+9%

07San Bernardino County, CACA2,224,091146,459+18%

08Sacramento County, CACA1,618,460135,875+24%

09Contra Costa County, CACA1,170,070107,272+23%

10San Francisco County, CACA826,079106,111+1%

11San Mateo County, CACA743,56888,085+10%

12Fresno County, CACA1,035,45679,209+16%

13Ventura County, CACA830,85176,804+23%

14Kern County, CACA927,06862,054+18%

15San Joaquin County, CACA823,81559,799+12%

16Sonoma County, CACA486,44457,977+11%

17Santa Barbara County, CACA442,06550,765+13%

18Stanislaus County, CACA557,71946,697+16%

19Monterey County, CACA433,72940,299+17%

20Solano County, CACA455,37637,426+34%

21Tulare County, CACA485,14635,917+8%

22San Luis Obispo County, CACA282,36735,685+17%

23Marin County, CACA253,69433,432+18%

24Placer County, CACA442,08132,560+59%

25Butte County, CACA209,21132,056+2%

26Santa Cruz County, CACA258,85225,487−2%

27Shasta County, CACA181,64824,861+20%

28Merced County, CACA297,26020,004+22%

29El Dorado County, CACA192,32319,334+26%

30Napa County, CACA132,94919,086+4%

31Nevada County, CACA101,91116,049+12%

32Yolo County, CACA224,41015,782+17%

33Humboldt County, CACA131,64715,776+7%

34Imperial County, CACA181,41114,305+29%

35Madera County, CACA167,92713,596+27%

36Mendocino County, CACA88,12211,709+8%

37Lake County, CACA67,77211,359−1%

38Tuolumne County, CACA53,16010,067+26%

39Sutter County, CACA98,7879,755+27%

40Kings County, CACA154,3279,557+22%

41Tehama County, CACA64,6658,923+6%

42Siskiyou County, CACA42,0138,040+12%

43Calaveras County, CACA46,6057,373+30%

44Yuba County, CACA88,6916,410+0%

45Amador County, CACA41,8766,329+18%

46San Benito County, CACA70,0824,315+19%

47Plumas County, CACA18,5833,725+10%

48Del Norte County, CACA26,4103,448+15%

49Glenn County, CACA28,1413,431+2%

50Inyo County, CACA18,1583,429+1%

51Lassen County, CACA28,1173,054+7%

52Mariposa County, CACA16,9182,940+15%

53Trinity County, CACA15,7202,241+14%

54Colusa County, CACA21,8362,135+4%

55Modoc County, CACA8,4261,663−1%

56Mono County, CACA12,505976+60%

57Sierra County, CACA3,098629−28%

58Alpine County, CACA1,043120+45%

SHOWING 1–58 OF 58

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