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QuickFacts

San Francisco County, California; San Francisco city, California

QuickFacts provides statistics for all states and counties, and for cities and towns with a population of 5,000 or more.

Chart

Persons under 18 years, percent

0.0%
4.0%
8.0%
12.0%
16.0%
20.0%
24.0%
28.0%
32.0%
San Francisco County, California
13.4%
Alameda County, California
20.5%
Alpine County, California
17.5%
Amador County, California
15.0%
Butte County, California
20.0%
Calaveras County, California
16.9%
Colusa County, California
27.3%
Contra Costa County, California
22.6%
Del Norte County, California
21.0%
El Dorado County, California
19.8%
Fresno County, California
28.3%
Glenn County, California
26.6%
Humboldt County, California
19.2%
Imperial County, California
28.5%
Inyo County, California
20.5%
Kern County, California
28.9%
Kings County, California
27.1%
Lake County, California
21.0%
Lassen County, California
17.1%
Los Angeles County, California
21.7%
Madera County, California
27.5%
Marin County, California
20.0%
Mariposa County, California
16.2%
Mendocino County, California
21.4%
Merced County, California
29.3%
Modoc County, California
19.5%
Mono County, California
18.3%
Monterey County, California
26.1%
Napa County, California
20.7%
Nevada County, California
17.1%
Orange County, California
21.9%
Placer County, California
22.2%
Plumas County, California
16.9%
Riverside County, California
25.1%
Sacramento County, California
23.6%
San Benito County, California
25.7%
San Bernardino County, California
26.4%
San Diego County, California
21.6%
San Joaquin County, California
27.1%
San Luis Obispo County, California
17.6%
San Mateo County, California
20.6%
Santa Barbara County, California
22.1%
Santa Clara County, California
21.9%
Santa Cruz County, California
19.3%
Shasta County, California
21.4%
Sierra County, California
16.1%
Siskiyou County, California
20.1%
Solano County, California
22.1%
Sonoma County, California
19.6%
Stanislaus County, California
27.1%
Sutter County, California
25.9%
Tehama County, California
24.0%
Trinity County, California
17.1%
Tulare County, California
30.7%
Tuolumne County, California
16.8%
Ventura County, California
22.9%
Yolo County, California
21.0%
Yuba County, California
27.6%
0.0%
4.0%
8.0%
12.0%
16.0%
20.0%
24.0%
28.0%
32.0%
Value Notes

Estimates are not comparable to other geographic levels due to methodology differences that may exist between different data sources.

Some estimates presented here come from sample data, and thus have sampling errors that may render some apparent differences between geographies statistically indistinguishable. Click the Quick Info icon to the left of each row in TABLE view to learn about sampling error.

The vintage year (e.g., V2018) refers to the final year of the series (2010 thru 2018). Different vintage years of estimates are not comparable.

Fact Notes Value Flags

QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

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