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Senior population (65+) by California county

Seniors (age 65+) are the people most likely to need home care. This is the resident 65+ population in each Bay Area county, from the U.S. Census Bureau's American Community Survey, with each county's share of total population and a link to the official Census table.

  • Last verified 2026-11-09
  • 58 counties
  • U.S. Census source

Mapa de la población de adultos mayores de California

Counties shaded by the share of residents age 65+. Hover for a quick read; click for the official U.S. Census source.

    Personas mayores de 65 años por condado

    Población residente de 65 años o más por condado del Área de la Bahía, la proporción de cada condado respecto a la población total y su fuente oficial del Censo de los EE. UU.
    Condado Personas mayores de 65 años Proporción de la población Fuente
    Los Angeles County 1,448,571 14.7%of 9,848,406 Census table
    Orange County 498,997 15.8%of 3,164,063 Census table
    San Diego County 493,837 15.0%of 3,282,782 Census table
    Riverside County 371,046 15.2%of 2,449,909 Census table
    Santa Clara County 273,921 14.4%of 1,903,297 Census table
    San Bernardino County 269,001 12.3%of 2,187,816 Census table
    Alameda County 246,841 14.9%of 1,651,949 Census table
    Sacramento County 236,467 14.9%of 1,584,047 Census table
    Contra Costa County 193,816 16.7%of 1,161,458 Census table
    San Francisco County 143,605 17.2%of 836,321 Census table
    Ventura County 141,315 16.9%of 838,259 Census table
    San Mateo County 128,893 17.3%of 745,100 Census table
    Fresno County 128,751 12.7%of 1,012,152 Census table
    Kern County 105,653 11.6%of 910,433 Census table
    San Joaquin County 104,481 13.3%of 787,416 Census table
    Sonoma County 101,805 21.0%of 485,642 Census table
    Placer County 83,236 20.2%of 412,435 Census table
    Solano County 76,287 16.9%of 450,824 Census table
    Stanislaus County 74,905 13.6%of 552,250 Census table
    Santa Barbara County 71,982 16.2%of 443,975 Census table
    Monterey County 63,232 14.5%of 435,834 Census table
    San Luis Obispo County 60,708 21.6%of 281,486 Census table
    Marin County 60,192 23.3%of 258,765 Census table
    Tulare County 55,879 11.7%of 475,774 Census table
    Santa Cruz County 48,784 18.3%of 266,021 Census table
    El Dorado County 43,808 22.8%of 192,299 Census table
    Shasta County 38,580 21.2%of 181,554 Census table
    Butte County 38,054 18.2%of 209,470 Census table
    Merced County 33,068 11.6%of 285,597 Census table
    Nevada County 29,591 28.9%of 102,452 Census table
    Yolo County 28,915 13.3%of 217,782 Census table
    Napa County 28,017 20.6%of 136,070 Census table
    Humboldt County 26,082 19.3%of 135,418 Census table
    Imperial County 24,119 13.5%of 179,319 Census table
    Madera County 22,802 14.4%of 158,790 Census table
    Mendocino County 21,829 24.1%of 90,709 Census table
    Kings County 16,221 10.6%of 152,830 Census table
    Lake County 16,105 23.6%of 68,139 Census table
    Sutter County 15,927 16.1%of 98,971 Census table
    Tuolumne County 15,199 27.7%of 54,873 Census table
    Calaveras County 13,220 28.7%of 45,995 Census table
    Tehama County 13,075 20.0%of 65,520 Census table
    Siskiyou County 11,903 27.2%of 43,834 Census table
    Amador County 11,163 27.2%of 41,029 Census table
    Yuba County 10,889 13.1%of 83,079 Census table
    San Benito County 8,900 13.5%of 66,056 Census table
    Plumas County 5,848 29.8%of 19,607 Census table
    Del Norte County 5,392 19.8%of 27,293 Census table
    Mariposa County 5,009 29.4%of 17,060 Census table
    Lassen County 4,977 16.0%of 31,177 Census table
    Glenn County 4,822 16.9%of 28,623 Census table
    Trinity County 4,662 29.3%of 15,886 Census table
    Inyo County 4,594 24.4%of 18,803 Census table
    Colusa County 3,355 15.3%of 21,895 Census table
    Modoc County 2,680 31.0%of 8,646 Census table
    Mono County 2,164 16.4%of 13,169 Census table
    Sierra County 942 34.5%of 2,731 Census table
    Alpine County 369 21.8%of 1,695 Census table

    Population figures are U.S. Census Bureau ACS 5-year estimates and carry a margin of error; they describe the resident population, not the number of people who need or use home care. Open the linked Census table to see the underlying estimate and its margin of error.

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