RANKING · 2010 CENSUS · 46 SHOWN OF 46

Highest Australian population share, California counties · 2010

California counties ranked by the share of all residents who are Australian ancestry (2010 American Community Survey). A concentration measure: Australian residents as a percentage of total population. This list covers the 46 counties in California that qualify, ranked against each other statewide.

Australian Americans: full group profile →

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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 –

01Alpine County, CACA1,0430.4%–

02Calaveras County, CACA46,6050.3%–

03Lake County, CACA67,7720.3%–

04Yolo County, CACA224,4100.2%–

05Marin County, CACA253,6940.2%–

06San Benito County, CACA70,0820.2%–

07Mendocino County, CACA88,1220.1%–

08San Francisco County, CACA826,0790.1%–

09Yuba County, CACA88,6910.1%–

10Shasta County, CACA181,6480.1%–

11Tehama County, CACA64,6650.1%–

12Amador County, CACA41,8760.1%–

13Santa Barbara County, CACA442,0650.1%–

14Placer County, CACA442,0810.1%–

15Sonoma County, CACA486,4440.1%–

16Nevada County, CACA101,9110.1%–

17San Luis Obispo County, CACA282,3670.1%–

18Santa Cruz County, CACA258,8520.1%–

19Contra Costa County, CACA1,170,0700.1%–

20San Diego County, CACA3,282,2480.1%–

21San Mateo County, CACA743,5680.1%–

22Glenn County, CACA28,1410.1%–

23Napa County, CACA132,9490.1%–

24Orange County, CACA3,149,5070.1%–

25Humboldt County, CACA131,6470.1%–

26Butte County, CACA209,2110.1%–

27Sacramento County, CACA1,618,4600.1%–

28Ventura County, CACA830,8510.0%–

29Los Angeles County, CACA9,694,9340.0%–

30San Bernardino County, CACA2,224,0910.0%–

31Riverside County, CACA2,544,9160.0%–

32Monterey County, CACA433,7290.0%–

33Alameda County, CACA1,636,6300.0%–

34Madera County, CACA167,9270.0%–

35Siskiyou County, CACA42,0130.0%–

36Solano County, CACA455,3760.0%–

37Kings County, CACA154,3270.0%–

38Stanislaus County, CACA557,7190.0%–

39El Dorado County, CACA192,3230.0%–

40Santa Clara County, CACA1,914,3910.0%–

41San Joaquin County, CACA823,8150.0%–

42Kern County, CACA927,0680.0%–

43Tulare County, CACA485,1460.0%–

44Merced County, CACA297,2600.0%–

45Tuolumne County, CACA53,1600.0%–

46Fresno County, CACA1,035,4560.0%–

SHOWING 1–46 OF 46

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS