Return to Home Demographics > Table

Demographics Table

Data Options

Demographic Data Report for California by County
Population: Age under 18
All Races (includes Hispanic), Both Sexes
2019-2023 American Community Survey 5-Year Data
Sorted by Count

County
 sort alphabetically by name ascending
2023 Rural-Urban Continuum Codes Φ
 sort by rural urban descending
Value (Percent)
 sort by value ascending
People (Age Under 18)
 sort by sample size descending
Rank within US
(of 3143 counties)
 sort by rank ascending
California N/A 22.2 8,729,012 23 of 52
United States N/A 22.2 73,645,238 N/A
Sierra County Rural 12.8 349 3,111
Alpine County Rural 22.6 383 1,288
Modoc County Rural 19.2 1,661 2,514
Mono County Rural 18.4 2,419 2,684
Mariposa County Rural 16.8 2,874 2,927
Trinity County Rural 18.3 2,912 2,702
Plumas County Rural 17.5 3,430 2,844
Inyo County Rural 20.3 3,819 2,213
Lassen County Rural 17.9 5,580 2,778
Del Norte County Rural 21.0 5,728 1,977
Colusa County Rural 27.3 5,987 176
Amador County Rural 15.5 6,356 3,036
Glenn County Rural 26.2 7,501 259
Calaveras County Rural 16.9 7,768 2,917
Siskiyou County Rural 20.1 8,827 2,274
Tuolumne County Rural 17.2 9,428 2,882
Lake County Rural 21.8 14,828 1,646
Tehama County Rural 24.1 15,783 687
San Benito County Urban 25.5 16,820 355
Nevada County Rural 17.1 17,514 2,892
Mendocino County Rural 21.1 19,142 1,936
Yuba County Urban 27.3 22,640 176
Sutter County Urban 25.4 25,168 378
Humboldt County Rural 19.0 25,685 2,557
Napa County Urban 19.9 27,023 2,329
El Dorado County Urban 19.7 37,917 2,378
Shasta County Urban 21.7 39,404 1,683
Kings County Urban 27.1 41,374 187
Butte County Urban 20.5 42,935 2,151
Madera County Urban 27.4 43,447 173
Yolo County Urban 20.5 44,638 2,151
San Luis Obispo County Urban 17.6 49,564 2,835
Santa Cruz County Urban 18.8 49,902 2,608
Marin County Urban 19.7 51,012 2,378
Imperial County Urban 28.5 51,116 121
Merced County Urban 29.1 83,242 103
Placer County Urban 22.0 90,610 1,567
Sonoma County Urban 19.3 93,938 2,489
Solano County Urban 22.1 99,424 1,518
Santa Barbara County Urban 22.4 99,608 1,385
Monterey County Urban 26.0 113,201 281
San Francisco County Urban 13.7 114,728 3,100
Tulare County Urban 30.1 143,115 74
San Mateo County Urban 19.9 148,064 2,329
Stanislaus County Urban 26.9 148,315 204
Ventura County Urban 22.2 185,795 1,469
San Joaquin County Urban 26.5 208,930 234
Contra Costa County Urban 22.2 258,092 1,469
Kern County Urban 28.8 262,550 115
Fresno County Urban 28.0 283,823 136
Alameda County Urban 20.0 331,035 2,300
Sacramento County Urban 23.1 365,667 1,087
Santa Clara County Urban 21.0 398,753 1,977
San Bernardino County Urban 25.8 563,979 315
Riverside County Urban 24.4 598,671 594
Orange County Urban 21.3 674,833 1,876
San Diego County Urban 21.1 694,169 1,936
Los Angeles County Urban 20.9 2,057,536 2,008
Notes:
Created by statecancerprofiles.cancer.gov on 06/17/2025 1:14 am.

Φ Rural-Urban Continuum Codes provided by the USDA.

Source: Demographic data provided by the Census Bureau and the American Community Survey.
For more information about Population: Age under 18, see the dictionary.

Data for United States does not include Puerto Rico.

Return to Top