RANKING · 2024 ACS · 58 SHOWN OF 58

Highest British population share, California counties

California counties ranked by the share of all residents who are British ancestry (2024 American Community Survey). A concentration measure: British residents as a percentage of total population. This list covers the 58 counties in California that qualify, ranked against each other statewide.

British Americans: full group profile →

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPBRITISH SHAREVS 2010

01Marin County, CACA253,6941.1%−0.1 pts

02Nevada County, CACA101,9111.0%+0.3 pts

03El Dorado County, CACA192,3230.8%+0.1 pts

04Sonoma County, CACA486,4440.8%+0.2 pts

05Placer County, CACA442,0810.8%+0.2 pts

06Santa Cruz County, CACA258,8520.7%−0.1 pts

07Mariposa County, CACA16,9180.7%−0.1 pts

08Calaveras County, CACA46,6050.7%+0.2 pts

09Humboldt County, CACA131,6470.7%+0.1 pts

10San Luis Obispo County, CACA282,3670.6%−0.2 pts

11Santa Barbara County, CACA442,0650.6%+0.0 pts

12Yolo County, CACA224,4100.6%+0.2 pts

13Alpine County, CACA1,0430.6%–

14San Francisco County, CACA826,0790.6%−0.2 pts

15Yuba County, CACA88,6910.6%+0.4 pts

16San Mateo County, CACA743,5680.6%+0.0 pts

17Mono County, CACA12,5050.6%+0.4 pts

18Amador County, CACA41,8760.6%−0.0 pts

19Butte County, CACA209,2110.5%+0.1 pts

20Siskiyou County, CACA42,0130.5%+0.1 pts

21Contra Costa County, CACA1,170,0700.5%−0.1 pts

22Napa County, CACA132,9490.5%−0.0 pts

23Mendocino County, CACA88,1220.5%+0.0 pts

24San Diego County, CACA3,282,2480.5%−0.0 pts

25Tuolumne County, CACA53,1600.5%+0.2 pts

26Alameda County, CACA1,636,6300.4%−0.1 pts

27Shasta County, CACA181,6480.4%−0.0 pts

28Lassen County, CACA28,1170.4%+0.2 pts

29Solano County, CACA455,3760.4%+0.1 pts

30Sacramento County, CACA1,618,4600.4%+0.0 pts

31Ventura County, CACA830,8510.4%−0.2 pts

32Santa Clara County, CACA1,914,3910.4%−0.1 pts

33Inyo County, CACA18,1580.4%−0.2 pts

34Modoc County, CACA8,4260.4%−0.3 pts

35Orange County, CACA3,149,5070.3%−0.2 pts

36Sutter County, CACA98,7870.3%+0.1 pts

37Del Norte County, CACA26,4100.3%−0.1 pts

38Los Angeles County, CACA9,694,9340.3%+0.0 pts

39Lake County, CACA67,7720.3%−0.1 pts

40Riverside County, CACA2,544,9160.3%−0.0 pts

41San Benito County, CACA70,0820.3%−0.1 pts

42Madera County, CACA167,9270.3%+0.0 pts

43Stanislaus County, CACA557,7190.3%+0.1 pts

44Fresno County, CACA1,035,4560.2%+0.1 pts

45Monterey County, CACA433,7290.2%−0.1 pts

46Tulare County, CACA485,1460.2%+0.1 pts

47Sierra County, CACA3,0980.2%−0.2 pts

48San Joaquin County, CACA823,8150.2%−0.0 pts

49Kern County, CACA927,0680.2%−0.0 pts

50Glenn County, CACA28,1410.2%−0.3 pts

51San Bernardino County, CACA2,224,0910.2%−0.0 pts

52Plumas County, CACA18,5830.2%−0.5 pts

53Tehama County, CACA64,6650.2%−0.1 pts

54Trinity County, CACA15,7200.2%−0.1 pts

55Merced County, CACA297,2600.1%+0.0 pts

56Imperial County, CACA181,4110.1%−0.0 pts

57Colusa County, CACA21,8360.1%+0.0 pts

58Kings County, CACA154,3270.1%−0.1 pts

SHOWING 1–58 OF 58

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES