RANKING · 2020 CENSUS · 48 SHOWN OF 48

Highest Australian population share, California counties · 2020

California counties ranked by the share of all residents who are Australian ancestry (2023 American Community Survey). A concentration measure: Australian residents as a percentage of total population. This list covers the 48 counties in California that qualify, ranked against each other statewide.

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

YEAR2010 2020 2024

Highest Australian population share by state

RANKPLACESTATEPOPAUSTRALIAN SHAREVS 2000

01Tehama County, CACA64,6650.2%–

02San Francisco County, CACA826,0790.1%–

03El Dorado County, CACA192,3230.1%–

04Nevada County, CACA101,9110.1%–

05Amador County, CACA41,8760.1%–

06Marin County, CACA253,6940.1%–

07San Luis Obispo County, CACA282,3670.1%–

08Yolo County, CACA224,4100.1%–

09Contra Costa County, CACA1,170,0700.1%–

10Placer County, CACA442,0810.1%–

11Sonoma County, CACA486,4440.1%–

12Napa County, CACA132,9490.1%–

13Santa Barbara County, CACA442,0650.1%–

14Siskiyou County, CACA42,0130.1%–

15Tuolumne County, CACA53,1600.1%–

16San Mateo County, CACA743,5680.1%–

17Lassen County, CACA28,1170.1%–

18Ventura County, CACA830,8510.1%–

19Santa Clara County, CACA1,914,3910.1%–

20Los Angeles County, CACA9,694,9340.1%–

21Butte County, CACA209,2110.1%–

22Orange County, CACA3,149,5070.1%–

23Santa Cruz County, CACA258,8520.1%–

24Alameda County, CACA1,636,6300.1%–

25Shasta County, CACA181,6480.0%–

26Riverside County, CACA2,544,9160.0%–

27Sacramento County, CACA1,618,4600.0%–

28San Diego County, CACA3,282,2480.0%–

29San Bernardino County, CACA2,224,0910.0%–

30San Joaquin County, CACA823,8150.0%–

31Monterey County, CACA433,7290.0%–

32Colusa County, CACA21,8360.0%–

33Glenn County, CACA28,1410.0%–

34Stanislaus County, CACA557,7190.0%–

35Humboldt County, CACA131,6470.0%–

36Solano County, CACA455,3760.0%–

37Mendocino County, CACA88,1220.0%–

38Tulare County, CACA485,1460.0%–

39Calaveras County, CACA46,6050.0%–

40Merced County, CACA297,2600.0%–

41Lake County, CACA67,7720.0%–

42Fresno County, CACA1,035,4560.0%–

43Sutter County, CACA98,7870.0%–

44Kern County, CACA927,0680.0%–

45Madera County, CACA167,9270.0%–

46Yuba County, CACA88,6910.0%–

47San Benito County, CACA70,0820.0%–

48Kings County, CACA154,3270.0%–

SHOWING 1–48 OF 48

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