RANKING · 2010 CENSUS · 57 SHOWN OF 57

Highest British population share, California counties · 2010

California counties ranked by the share of all residents who are British ancestry (2023 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.

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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 2000

01Marin County, CACA253,6941.3%–

02Santa Cruz County, CACA258,8520.9%–

03San Luis Obispo County, CACA282,3670.8%–

04Mariposa County, CACA16,9180.8%–

05El Dorado County, CACA192,3230.8%–

06San Francisco County, CACA826,0790.8%–

07Plumas County, CACA18,5830.7%–

08Nevada County, CACA101,9110.7%–

09Sonoma County, CACA486,4440.7%–

10Modoc County, CACA8,4260.7%–

11Santa Barbara County, CACA442,0650.6%–

12Inyo County, CACA18,1580.6%–

13Placer County, CACA442,0810.6%–

14Ventura County, CACA830,8510.6%–

15Amador County, CACA41,8760.6%–

16Contra Costa County, CACA1,170,0700.6%–

17San Mateo County, CACA743,5680.6%–

18Orange County, CACA3,149,5070.6%–

19Santa Clara County, CACA1,914,3910.5%–

20Napa County, CACA132,9490.5%–

21Alameda County, CACA1,636,6300.5%–

22Humboldt County, CACA131,6470.5%–

23San Diego County, CACA3,282,2480.5%–

24Shasta County, CACA181,6480.5%–

25Calaveras County, CACA46,6050.5%–

26Butte County, CACA209,2110.5%–

27Mendocino County, CACA88,1220.5%–

28Glenn County, CACA28,1410.5%–

29Yolo County, CACA224,4100.4%–

30Sierra County, CACA3,0980.4%–

31Del Norte County, CACA26,4100.4%–

32San Benito County, CACA70,0820.4%–

33Lake County, CACA67,7720.4%–

34Sacramento County, CACA1,618,4600.4%–

35Siskiyou County, CACA42,0130.4%–

36Solano County, CACA455,3760.3%–

37Monterey County, CACA433,7290.3%–

38Tehama County, CACA64,6650.3%–

39Riverside County, CACA2,544,9160.3%–

40Los Angeles County, CACA9,694,9340.3%–

41Tuolumne County, CACA53,1600.3%–

42Trinity County, CACA15,7200.3%–

43Lassen County, CACA28,1170.3%–

44San Joaquin County, CACA823,8150.2%–

45Yuba County, CACA88,6910.2%–

46San Bernardino County, CACA2,224,0910.2%–

47Madera County, CACA167,9270.2%–

48Kern County, CACA927,0680.2%–

49Mono County, CACA12,5050.2%–

50Kings County, CACA154,3270.2%–

51Sutter County, CACA98,7870.2%–

52Stanislaus County, CACA557,7190.2%–

53Fresno County, CACA1,035,4560.2%–

54Merced County, CACA297,2600.1%–

55Imperial County, CACA181,4110.1%–

56Tulare County, CACA485,1460.1%–

57Colusa County, CACA21,8360.0%–

SHOWING 1–57 OF 57

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES