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QuickFacts

Los Angeles County, California

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

Chart

Population Estimates, July 1 2021, (V2021)

0
990,000
1,980,000
2,970,000
3,960,000
4,950,000
5,940,000
6,930,000
7,920,000
8,910,000
9,900,000
Los Angeles County, California
9,829,544
Alameda County, California
1,648,556
Alpine County, California
1,235
Amador County, California
41,259
Butte County, California
208,309
Calaveras County, California
46,221
Colusa County, California
21,917
Contra Costa County, California
1,161,413
Del Norte County, California
28,100
El Dorado County, California
193,221
Fresno County, California
1,013,581
Glenn County, California
28,805
Humboldt County, California
136,310
Imperial County, California
179,851
Inyo County, California
18,970
Kern County, California
917,673
Kings County, California
153,443
Lake County, California
68,766
Lassen County, California
33,159
Madera County, California
159,410
Marin County, California
260,206
Mariposa County, California
17,147
Mendocino County, California
91,305
Merced County, California
286,461
Modoc County, California
8,661
Mono County, California
13,247
Monterey County, California
437,325
Napa County, California
136,207
Nevada County, California
103,487
Orange County, California
3,167,809
Placer County, California
412,300
Plumas County, California
19,915
Riverside County, California
2,458,395
Sacramento County, California
1,588,921
San Benito County, California
66,677
San Bernardino County, California
2,194,710
San Diego County, California
3,286,069
San Francisco County, California
815,201
San Joaquin County, California
789,410
San Luis Obispo County, California
283,159
San Mateo County, California
737,888
Santa Barbara County, California
446,475
Santa Clara County, California
1,885,508
Santa Cruz County, California
267,792
Shasta County, California
182,139
Sierra County, California
3,283
Siskiyou County, California
44,118
Solano County, California
451,716
Sonoma County, California
485,887
Stanislaus County, California
552,999
Sutter County, California
99,063
Tehama County, California
65,498
Trinity County, California
16,060
Tulare County, California
477,054
Tuolumne County, California
55,810
Ventura County, California
839,784
Yolo County, California
216,986
Yuba County, California
83,421
0
990,000
1,980,000
2,970,000
3,960,000
4,950,000
5,940,000
6,930,000
7,920,000
8,910,000
9,900,000
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., V2021) refers to the final year of the series (2020 thru 2021). Different vintage years of estimates are not comparable.

Users should exercise caution when comparing 2016-2020 ACS 5-year estimates to other ACS estimates. For more information, please visit the 2020 5-year ACS Comparison Guidance page.

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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