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Interpretation of Demographics Data

Demographic Data Report for California by County
Population: Age 65 and over
All Races (includes Hispanic), Both Sexes
2020-2024 American Community Survey 5-Year Data
Sorted by Percent

United States

2023 Rural-Urban Continuum Codes Φ : N/A
Value (Percent) : The value is 17.2 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 57,633,628.
Rank within US : N/A

California

2023 Rural-Urban Continuum Codes Φ : N/A
Value (Percent) : The value is 15.7 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 6,158,371.
Rank within US : This county is ranked 46 of 52

Sierra County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 35.1 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 963.
Rank within US : This county is ranked 32 of 3143

Modoc County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 31.7 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 2,722.
Rank within US : This county is ranked 86 of 3143

Plumas County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 31.5 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 6,114.
Rank within US : This county is ranked 88 of 3143

Trinity County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 30.2 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 4,795.
Rank within US : This county is ranked 125 of 3143

Mariposa County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 29.7 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 5,073.
Rank within US : This county is ranked 138 of 3143

Nevada County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 29.3 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 30,033.
Rank within US : This county is ranked 161 of 3143

Calaveras County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 29.2 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 13,517.
Rank within US : This county is ranked 168 of 3143

Tuolumne County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 28.1 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 15,339.
Rank within US : This county is ranked 217 of 3143

Siskiyou County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 27.8 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 12,101.
Rank within US : This county is ranked 241 of 3143

Amador County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 27.6 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 11,423.
Rank within US : This county is ranked 248 of 3143

Inyo County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 24.9 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 4,675.
Rank within US : This county is ranked 492 of 3143

Mendocino County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 24.5 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 22,154.
Rank within US : This county is ranked 541 of 3143

Lake County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 23.9 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 16,290.
Rank within US : This county is ranked 616 of 3143

Marin County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 23.8 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 61,345.
Rank within US : This county is ranked 636 of 3143

El Dorado County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 23.5 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 45,254.
Rank within US : This county is ranked 682 of 3143

San Luis Obispo County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 22.1 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 62,338.
Rank within US : This county is ranked 961 of 3143

Shasta County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 21.5 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 39,009.
Rank within US : This county is ranked 1094 of 3143

Sonoma County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 21.5 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 104,389.
Rank within US : This county is ranked 1094 of 3143

Alpine County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 21.1 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 341.
Rank within US : This county is ranked 1197 of 3143

Napa County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 21.1 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 28,455.
Rank within US : This county is ranked 1197 of 3143

Del Norte County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 20.5 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 5,552.
Rank within US : This county is ranked 1385 of 3143

Placer County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 20.5 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 85,822.
Rank within US : This county is ranked 1385 of 3143

Tehama County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 20.1 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 13,085.
Rank within US : This county is ranked 1518 of 3143

Humboldt County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 19.8 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 26,660.
Rank within US : This county is ranked 1625 of 3143

Santa Cruz County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 19.0 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 50,275.
Rank within US : This county is ranked 1855 of 3143

Butte County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 18.4 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 38,227.
Rank within US : This county is ranked 2046 of 3143

San Mateo County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 17.8 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 132,242.
Rank within US : This county is ranked 2221 of 3143

San Francisco County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 17.6 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 146,510.
Rank within US : This county is ranked 2271 of 3143

Mono County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 17.5 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 2,297.
Rank within US : This county is ranked 2284 of 3143

Solano County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 17.4 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 78,738.
Rank within US : This county is ranked 2309 of 3143

Ventura County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 17.4 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 145,793.
Rank within US : This county is ranked 2309 of 3143

Glenn County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 17.2 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 4,893.
Rank within US : This county is ranked 2358 of 3143

Contra Costa County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 17.1 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 199,270.
Rank within US : This county is ranked 2381 of 3143

Santa Barbara County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 16.6 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 73,710.
Rank within US : This county is ranked 2508 of 3143

Lassen County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 16.5 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 5,012.
Rank within US : This county is ranked 2529 of 3143

Sutter County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 16.4 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 16,216.
Rank within US : This county is ranked 2548 of 3143

Orange County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 16.3 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 514,824.
Rank within US : This county is ranked 2558 of 3143

Colusa County

2023 Rural-Urban Continuum Codes Φ : Rural
Value (Percent) : The value is 15.5 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 3,410.
Rank within US : This county is ranked 2702 of 3143

Alameda County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 15.4 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 254,161.
Rank within US : This county is ranked 2717 of 3143

Riverside County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 15.4 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 382,888.
Rank within US : This county is ranked 2717 of 3143

San Diego County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 15.4 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 507,734.
Rank within US : This county is ranked 2717 of 3143

Sacramento County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 15.3 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 243,370.
Rank within US : This county is ranked 2736 of 3143

Los Angeles County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 15.2 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 1,487,700.
Rank within US : This county is ranked 2760 of 3143

Monterey County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 14.9 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 65,068.
Rank within US : This county is ranked 2799 of 3143

Santa Clara County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 14.8 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 282,010.
Rank within US : This county is ranked 2811 of 3143

Madera County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 14.4 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 23,148.
Rank within US : This county is ranked 2870 of 3143

Stanislaus County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 13.8 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 76,271.
Rank within US : This county is ranked 2924 of 3143

Imperial County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 13.7 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 24,701.
Rank within US : This county is ranked 2935 of 3143

San Benito County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 13.7 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 9,234.
Rank within US : This county is ranked 2935 of 3143

San Joaquin County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 13.5 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 107,730.
Rank within US : This county is ranked 2952 of 3143

Yolo County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 13.5 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 29,712.
Rank within US : This county is ranked 2952 of 3143

Yuba County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 13.1 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 11,060.
Rank within US : This county is ranked 2986 of 3143

Fresno County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 12.9 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 131,488.
Rank within US : This county is ranked 3002 of 3143

San Bernardino County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 12.6 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 276,984.
Rank within US : This county is ranked 3023 of 3143

Kern County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 11.9 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 108,560.
Rank within US : This county is ranked 3058 of 3143

Tulare County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 11.9 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 57,101.
Rank within US : This county is ranked 3058 of 3143

Merced County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 11.7 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 34,001.
Rank within US : This county is ranked 3071 of 3143

Kings County

2023 Rural-Urban Continuum Codes Φ : Urban
Value (Percent) : The value is 10.8 percent.
People (Age 65 And Over) : The number of people (age 65 and over) is 16,584.
Rank within US : This county is ranked 3100 of 3143

Notes:
Created by statecancerprofiles.cancer.gov on 03/30/2026 7:06 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 65 and over, see the dictionary.

Data for United States does not include Puerto Rico.

State Cancer Profiles