California / Counties by Population

California Counties by Population

The data is from the US Census. Below are 58 California counties ranked 1 through 58 . You can copy and paste this list directly into your favorite spreadsheet program. Don't you just adore lovely numbers listed nicely in columns & rows? We do!

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Rank County Population
1 Los Angeles County 10,039,107
2 San Diego County 3,338,330
3 Orange County 3,175,692
4 Riverside County 2,470,546
5 San Bernardino County 2,180,085
6 Santa Clara County 1,927,852
7 Alameda County 1,671,329
8 Sacramento County 1,552,058
9 Contra Costa County 1,153,526
10 Fresno County 999,101
11 Kern County 900,202
12 San Francisco County 881,549
13 Ventura County 846,006
14 San Mateo County 766,573
15 San Joaquin County 762,148
16 Stanislaus County 550,660
17 Sonoma County 494,336
18 Tulare County 466,195
19 Solano County 447,643
20 Santa Barbara County 446,499
21 Monterey County 434,061
22 Placer County 398,329
23 San Luis Obispo County 283,111
24 Merced County 277,680
25 Santa Cruz County 273,213
26 Marin County 258,826
27 Yolo County 220,500
28 Butte County 219,186
29 El Dorado County 192,843
30 Imperial County 181,215
31 Shasta County 180,080
32 Madera County 157,327
33 Kings County 152,940
34 Napa County 137,744
35 Humboldt County 135,558
36 Nevada County 99,755
37 Sutter County 96,971
38 Mendocino County 86,749
39 Yuba County 78,668
40 Tehama County 65,084
41 Lake County 64,386
42 San Benito County 62,808
43 Tuolumne County 54,478
44 Calaveras County 45,905
45 Siskiyou County 43,539
46 Amador County 39,752
47 Lassen County 30,573
48 Glenn County 28,393
49 Del Norte County 27,812
50 Colusa County 21,547
51 Plumas County 18,807
52 Inyo County 18,039
53 Mariposa County 17,203
54 Mono County 14,444
55 Trinity County 12,285
56 Modoc County 8,841
57 Sierra County 3,005
58 Alpine County 1,129

United States Census Bureau. B01001 SEX BY AGE, 2018 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 19 December 2019. http://www.census.gov/.

United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2019. U.S. Census Bureau, Population Division. Web. May 2020. http://www.census.gov/.

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