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QuickFacts provides statistics for all states and counties. Also for cities and towns with a population of 5,000 or more.
Chart
Population estimates, July 1, 2025, (V2025)
0
970,000
1,940,000
2,910,000
3,880,000
4,850,000
5,820,000
6,790,000
7,760,000
8,730,000
9,700,000
Los Angeles County, California
9,694,934
San Diego County, California
3,282,248
Orange County, California
3,149,507
Riverside County, California
2,544,916
San Bernardino County, California
2,224,091
Santa Clara County, California
1,914,391
Alameda County, California
1,636,630
Sacramento County, California
1,618,460
Contra Costa County, California
1,170,070
Fresno County, California
1,035,456
Kern County, California
927,068
Ventura County, California
830,851
San Francisco County, California
826,079
San Joaquin County, California
823,815
San Mateo County, California
743,568
Stanislaus County, California
557,719
Sonoma County, California
486,444
Tulare County, California
485,146
Solano County, California
455,376
Placer County, California
442,081
Santa Barbara County, California
442,065
Monterey County, California
433,729
Merced County, California
297,260
San Luis Obispo County, California
282,367
Santa Cruz County, California
258,852
Marin County, California
253,694
Yolo County, California
224,410
Butte County, California
209,211
El Dorado County, California
192,323
Shasta County, California
181,648
Imperial County, California
181,411
Madera County, California
167,927
Kings County, California
154,327
Napa County, California
132,949
Humboldt County, California
131,647
Nevada County, California
101,911
Sutter County, California
98,787
Yuba County, California
88,691
Mendocino County, California
88,122
San Benito County, California
70,082
Lake County, California
67,772
Tehama County, California
64,665
Tuolumne County, California
53,160
Calaveras County, California
46,605
Siskiyou County, California
42,013
Amador County, California
41,876
Glenn County, California
28,141
Lassen County, California
28,117
Del Norte County, California
26,410
Colusa County, California
21,836
Plumas County, California
18,583
Inyo County, California
18,158
Mariposa County, California
16,918
Trinity County, California
15,720
Mono County, California
12,505
Modoc County, California
8,426
Sierra County, California
3,098
Alpine County, California
1,043
0
970,000
1,940,000
2,910,000
3,880,000
4,850,000
5,820,000
6,790,000
7,760,000
8,730,000
9,700,000
Value Notes
Methodology differences may exist between data sources, and so estimates from different sources are not comparable.
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., V2025) refers to the final year of the series (2020 thru 2025). Different vintage years of estimates are not comparable.
Users should exercise caution when comparing 2020-2024 ACS 5-year estimates to other ACS estimates. For more information, please visit
the 2024 5-year ACS Comparison Guidance page.
(b)Hispanics may be of any race, so also are included in applicable race categories
(c)Economic Census - Puerto Rico data are not comparable to U.S. Economic Census data
Value Flags
DSuppressed to avoid disclosure of confidential information
FFewer than 25 firms
FNFootnote on this item in place of data
NANot available
SSuppressed; does not meet publication standards
XNot applicable
ZValue greater than zero but less than half unit of measure shown
-Either no or too few sample observations were available to compute an estimate, or a ratio of medians cannot be calculated because one or both of the median estimates falls in the lowest or upper interval of an open ended distribution.
NData for this geographic area cannot be displayed because the number of sample cases is too small.
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, Annual Business Survey, Building Permits.
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