Interpretation of Demographics Data
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
California
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Value (Percent) : The value is 34.0 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 13,375,209.
- Rank within US : This county is ranked 44 of 52
United States
- 2023 Rural-Urban Continuum Codes Φ : N/A
- Value (Percent) : The value is 36.1 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 120,764,820.
- Rank within US : N/A
Alpine County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 40.6 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 656.
- Rank within US : This county is ranked 1431 of 3143
Sierra County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 52.2 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 1,434.
- Rank within US : This county is ranked 140 of 3143
Modoc County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 47.5 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 4,082.
- Rank within US : This county is ranked 377 of 3143
Mono County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 39.2 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 5,149.
- Rank within US : This county is ranked 1737 of 3143
Colusa County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 33.0 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 7,258.
- Rank within US : This county is ranked 2732 of 3143
Inyo County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 45.1 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 8,450.
- Rank within US : This county is ranked 615 of 3143
Trinity County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 54.8 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 8,689.
- Rank within US : This county is ranked 77 of 3143
Mariposa County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 51.0 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 8,718.
- Rank within US : This county is ranked 180 of 3143
Glenn County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 34.3 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 9,783.
- Rank within US : This county is ranked 2601 of 3143
Plumas County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 52.4 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 10,171.
- Rank within US : This county is ranked 132 of 3143
Lassen County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 34.0 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 10,310.
- Rank within US : This county is ranked 2637 of 3143
Del Norte County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 39.7 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 10,760.
- Rank within US : This county is ranked 1623 of 3143
Amador County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 49.7 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 20,596.
- Rank within US : This county is ranked 234 of 3143
Siskiyou County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 47.6 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 20,679.
- Rank within US : This county is ranked 368 of 3143
San Benito County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 31.5 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 21,216.
- Rank within US : This county is ranked 2847 of 3143
Calaveras County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 52.4 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 24,243.
- Rank within US : This county is ranked 132 of 3143
Yuba County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 29.3 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 24,721.
- Rank within US : This county is ranked 2984 of 3143
Tehama County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 39.4 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 25,661.
- Rank within US : This county is ranked 1693 of 3143
Tuolumne County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 47.7 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 25,994.
- Rank within US : This county is ranked 363 of 3143
Lake County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 44.0 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 30,015.
- Rank within US : This county is ranked 756 of 3143
Sutter County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 33.9 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 33,547.
- Rank within US : This county is ranked 2648 of 3143
Kings County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 25.5 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 39,029.
- Rank within US : This county is ranked 3105 of 3143
Mendocino County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 43.4 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 39,199.
- Rank within US : This county is ranked 852 of 3143
Madera County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 30.5 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 49,131.
- Rank within US : This county is ranked 2916 of 3143
Humboldt County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 37.0 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 49,829.
- Rank within US : This county is ranked 2200 of 3143
Nevada County
- 2023 Rural-Urban Continuum Codes Φ : Rural
- Value (Percent) : The value is 50.1 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 51,386.
- Rank within US : This county is ranked 217 of 3143
Imperial County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 29.3 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 52,743.
- Rank within US : This county is ranked 2984 of 3143
Napa County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 41.0 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 55,328.
- Rank within US : This county is ranked 1330 of 3143
Yolo County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 28.7 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 63,310.
- Rank within US : This county is ranked 3004 of 3143
Butte County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 34.9 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 72,485.
- Rank within US : This county is ranked 2528 of 3143
Shasta County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 40.6 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 73,747.
- Rank within US : This county is ranked 1431 of 3143
Merced County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 27.0 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 78,307.
- Rank within US : This county is ranked 3076 of 3143
El Dorado County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 45.5 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 87,678.
- Rank within US : This county is ranked 571 of 3143
Santa Cruz County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 37.9 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 100,416.
- Rank within US : This county is ranked 2041 of 3143
San Luis Obispo County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 39.8 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 112,049.
- Rank within US : This county is ranked 1599 of 3143
Marin County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 46.4 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 119,826.
- Rank within US : This county is ranked 478 of 3143
Tulare County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 27.2 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 130,139.
- Rank within US : This county is ranked 3072 of 3143
Monterey County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 31.5 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 137,985.
- Rank within US : This county is ranked 2847 of 3143
Santa Barbara County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 32.7 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 145,240.
- Rank within US : This county is ranked 2762 of 3143
Solano County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 36.3 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 164,004.
- Rank within US : This county is ranked 2327 of 3143
Placer County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 39.9 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 167,374.
- Rank within US : This county is ranked 1582 of 3143
Stanislaus County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 30.5 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 169,206.
- Rank within US : This county is ranked 2916 of 3143
Sonoma County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 41.5 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 201,504.
- Rank within US : This county is ranked 1227 of 3143
San Joaquin County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 30.5 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 243,245.
- Rank within US : This county is ranked 2916 of 3143
Kern County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 27.4 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 251,174.
- Rank within US : This county is ranked 3067 of 3143
San Mateo County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 37.6 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 279,059.
- Rank within US : This county is ranked 2097 of 3143
Fresno County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 28.6 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 290,516.
- Rank within US : This county is ranked 3010 of 3143
San Francisco County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 36.3 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 301,028.
- Rank within US : This county is ranked 2327 of 3143
Ventura County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 37.1 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 311,002.
- Rank within US : This county is ranked 2183 of 3143
Contra Costa County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 37.0 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 430,892.
- Rank within US : This county is ranked 2200 of 3143
Sacramento County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 33.2 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 528,796.
- Rank within US : This county is ranked 2716 of 3143
Alameda County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 34.1 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 562,764.
- Rank within US : This county is ranked 2628 of 3143
Santa Clara County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 33.6 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 638,558.
- Rank within US : This county is ranked 2678 of 3143
San Bernardino County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 29.8 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 654,357.
- Rank within US : This county is ranked 2962 of 3143
Riverside County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 33.2 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 822,172.
- Rank within US : This county is ranked 2716 of 3143
San Diego County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 33.1 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 1,089,603.
- Rank within US : This county is ranked 2725 of 3143
Orange County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 36.3 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 1,148,792.
- Rank within US : This county is ranked 2327 of 3143
Los Angeles County
- 2023 Rural-Urban Continuum Codes Φ : Urban
- Value (Percent) : The value is 34.2 percent.
- People (Age 50 And Over) : The number of people (age 50 and over) is 3,351,204.
- Rank within US : This county is ranked 2614 of 3143
Notes:
Created by statecancerprofiles.cancer.gov on 03/23/2026 8:04 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.