RANKING · 2020 CENSUS · 57 SHOWN OF 57

Highest British population share, California counties · 2020

California counties ranked by the share of all residents who are British ancestry (2020 American Community Survey). A concentration measure: British residents as a percentage of total population. This list covers the 57 counties in California that qualify, ranked against each other statewide. The median across all 57 is 0.6%.

British Americans: full group profile →

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPBRITISH SHAREVS 2010

01Alpine County, CACA1,0431.8%–

02Marin County, CACA253,6941.6%+0.3 pts

03Inyo County, CACA18,1581.5%+0.9 pts

04Santa Cruz County, CACA258,8521.3%+0.5 pts

05El Dorado County, CACA192,3231.3%+0.5 pts

06Nevada County, CACA101,9111.1%+0.4 pts

07Tuolumne County, CACA53,1601.1%+0.8 pts

08Placer County, CACA442,0811.0%+0.5 pts

09Sonoma County, CACA486,4441.0%+0.3 pts

10Santa Barbara County, CACA442,0651.0%+0.3 pts

11Amador County, CACA41,8761.0%+0.4 pts

12Modoc County, CACA8,4261.0%+0.3 pts

13San Francisco County, CACA826,0790.9%+0.2 pts

14San Luis Obispo County, CACA282,3670.9%0.0 pts

15Humboldt County, CACA131,6470.9%+0.3 pts

16Yuba County, CACA88,6910.8%+0.6 pts

17Napa County, CACA132,9490.8%+0.3 pts

18Shasta County, CACA181,6480.8%+0.3 pts

19San Mateo County, CACA743,5680.8%+0.2 pts

20Butte County, CACA209,2110.8%+0.3 pts

21Mariposa County, CACA16,9180.8%0.0 pts

22Calaveras County, CACA46,6050.8%+0.3 pts

23Tehama County, CACA64,6650.8%+0.5 pts

24Contra Costa County, CACA1,170,0700.7%+0.1 pts

25San Diego County, CACA3,282,2480.7%+0.2 pts

26Alameda County, CACA1,636,6300.7%+0.2 pts

27Ventura County, CACA830,8510.7%+0.1 pts

28Santa Clara County, CACA1,914,3910.7%+0.1 pts

29Sutter County, CACA98,7870.6%+0.5 pts

30Mendocino County, CACA88,1220.6%+0.2 pts

31Orange County, CACA3,149,5070.6%+0.1 pts

32Siskiyou County, CACA42,0130.6%+0.2 pts

33Yolo County, CACA224,4100.6%+0.1 pts

34Solano County, CACA455,3760.6%+0.2 pts

35Sacramento County, CACA1,618,4600.5%+0.2 pts

36Colusa County, CACA21,8360.5%+0.5 pts

37Plumas County, CACA18,5830.5%−0.2 pts

38Riverside County, CACA2,544,9160.5%+0.2 pts

39Glenn County, CACA28,1410.4%0.0 pts

40Los Angeles County, CACA9,694,9340.4%+0.1 pts

41Monterey County, CACA433,7290.4%+0.1 pts

42Madera County, CACA167,9270.4%+0.2 pts

43San Benito County, CACA70,0820.4%0.0 pts

44Stanislaus County, CACA557,7190.3%+0.2 pts

45Lake County, CACA67,7720.3%0.0 pts

46San Bernardino County, CACA2,224,0910.3%+0.1 pts

47Kern County, CACA927,0680.3%+0.1 pts

48Fresno County, CACA1,035,4560.3%+0.2 pts

49Tulare County, CACA485,1460.3%+0.2 pts

50Lassen County, CACA28,1170.3%0.0 pts

51Del Norte County, CACA26,4100.3%−0.1 pts

52San Joaquin County, CACA823,8150.2%0.0 pts

53Merced County, CACA297,2600.2%+0.1 pts

54Kings County, CACA154,3270.2%0.0 pts

55Trinity County, CACA15,7200.1%−0.1 pts

56Imperial County, CACA181,4110.1%0.0 pts

57Mono County, CACA12,5050.1%−0.2 pts

SHOWING 1–57 OF 57

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS