Demographics Table
Demographic Data Report for California by County
Population: Age 50 and over
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent
County
|
2023 Rural-Urban Continuum Codes Φ
|
Value (Percent)
|
People (Age 50 And Over)
|
Rank within US (of 3143 counties)
|
|---|---|---|---|---|
| United States | N/A | 36.1 | 120,764,820 | N/A |
| California | N/A | 34.0 | 13,375,209 | 44 of 52 |
| Trinity County | Rural | 54.8 | 8,689 | 77 |
| Calaveras County | Rural | 52.4 | 24,243 | 132 |
| Plumas County | Rural | 52.4 | 10,171 | 132 |
| Sierra County | Rural | 52.2 | 1,434 | 140 |
| Mariposa County | Rural | 51.0 | 8,718 | 180 |
| Nevada County | Rural | 50.1 | 51,386 | 217 |
| Amador County | Rural | 49.7 | 20,596 | 234 |
| Tuolumne County | Rural | 47.7 | 25,994 | 363 |
| Siskiyou County | Rural | 47.6 | 20,679 | 368 |
| Modoc County | Rural | 47.5 | 4,082 | 377 |
| Marin County | Urban | 46.4 | 119,826 | 478 |
| El Dorado County | Urban | 45.5 | 87,678 | 571 |
| Inyo County | Rural | 45.1 | 8,450 | 615 |
| Lake County | Rural | 44.0 | 30,015 | 756 |
| Mendocino County | Rural | 43.4 | 39,199 | 852 |
| Sonoma County | Urban | 41.5 | 201,504 | 1,227 |
| Napa County | Urban | 41.0 | 55,328 | 1,330 |
| Alpine County | Rural | 40.6 | 656 | 1,431 |
| Shasta County | Urban | 40.6 | 73,747 | 1,431 |
| Placer County | Urban | 39.9 | 167,374 | 1,582 |
| San Luis Obispo County | Urban | 39.8 | 112,049 | 1,599 |
| Del Norte County | Rural | 39.7 | 10,760 | 1,623 |
| Tehama County | Rural | 39.4 | 25,661 | 1,693 |
| Mono County | Rural | 39.2 | 5,149 | 1,737 |
| Santa Cruz County | Urban | 37.9 | 100,416 | 2,041 |
| San Mateo County | Urban | 37.6 | 279,059 | 2,097 |
| Ventura County | Urban | 37.1 | 311,002 | 2,183 |
| Contra Costa County | Urban | 37.0 | 430,892 | 2,200 |
| Humboldt County | Rural | 37.0 | 49,829 | 2,200 |
| Orange County | Urban | 36.3 | 1,148,792 | 2,327 |
| San Francisco County | Urban | 36.3 | 301,028 | 2,327 |
| Solano County | Urban | 36.3 | 164,004 | 2,327 |
| Butte County | Urban | 34.9 | 72,485 | 2,528 |
| Glenn County | Rural | 34.3 | 9,783 | 2,601 |
| Los Angeles County | Urban | 34.2 | 3,351,204 | 2,614 |
| Alameda County | Urban | 34.1 | 562,764 | 2,628 |
| Lassen County | Rural | 34.0 | 10,310 | 2,637 |
| Sutter County | Urban | 33.9 | 33,547 | 2,648 |
| Santa Clara County | Urban | 33.6 | 638,558 | 2,678 |
| Riverside County | Urban | 33.2 | 822,172 | 2,716 |
| Sacramento County | Urban | 33.2 | 528,796 | 2,716 |
| San Diego County | Urban | 33.1 | 1,089,603 | 2,725 |
| Colusa County | Rural | 33.0 | 7,258 | 2,732 |
| Santa Barbara County | Urban | 32.7 | 145,240 | 2,762 |
| Monterey County | Urban | 31.5 | 137,985 | 2,847 |
| San Benito County | Urban | 31.5 | 21,216 | 2,847 |
| Madera County | Urban | 30.5 | 49,131 | 2,916 |
| San Joaquin County | Urban | 30.5 | 243,245 | 2,916 |
| Stanislaus County | Urban | 30.5 | 169,206 | 2,916 |
| San Bernardino County | Urban | 29.8 | 654,357 | 2,962 |
| Imperial County | Urban | 29.3 | 52,743 | 2,984 |
| Yuba County | Urban | 29.3 | 24,721 | 2,984 |
| Yolo County | Urban | 28.7 | 63,310 | 3,004 |
| Fresno County | Urban | 28.6 | 290,516 | 3,010 |
| Kern County | Urban | 27.4 | 251,174 | 3,067 |
| Tulare County | Urban | 27.2 | 130,139 | 3,072 |
| Merced County | Urban | 27.0 | 78,307 | 3,076 |
| Kings County | Urban | 25.5 | 39,029 | 3,105 |
Notes:
Created by statecancerprofiles.cancer.gov on 03/28/2026 10:53 pm.
Φ Rural–urban county classifications are based on the 2023 USDA Rural–Urban Continuum Codes (except for Connecticut Counties which use 2013 codes). State-level cancer rates for rural areas are calculated using cancer cases registered exclusively in rural counties, while state-level cancer rates for urban areas are calculated using cases registered exclusively in urban counties.
Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age 50 and over, see the dictionary.
Data for United States does not include Puerto Rico.