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 (2020 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.

Australian 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

Highest Australian population share by state

RANKPLACESTATEPOPAUSTRALIAN SHAREVS 2010

01Tehama County, CACA64,6650.2%+0.1 pts

02San Francisco County, CACA826,0790.1%+0.0 pts

03El Dorado County, CACA192,3230.1%+0.1 pts

04Nevada County, CACA101,9110.1%+0.0 pts

05Amador County, CACA41,8760.1%+0.0 pts

06Marin County, CACA253,6940.1%−0.1 pts

07San Luis Obispo County, CACA282,3670.1%+0.0 pts

08Yolo County, CACA224,4100.1%−0.1 pts

09Contra Costa County, CACA1,170,0700.1%+0.0 pts

10Placer County, CACA442,0810.1%−0.0 pts

11Sonoma County, CACA486,4440.1%−0.0 pts

12Napa County, CACA132,9490.1%+0.0 pts

13Santa Barbara County, CACA442,0650.1%−0.0 pts

14Siskiyou County, CACA42,0130.1%+0.0 pts

15Tuolumne County, CACA53,1600.1%+0.1 pts

16San Mateo County, CACA743,5680.1%−0.0 pts

17Lassen County, CACA28,1170.1%–

18Ventura County, CACA830,8510.1%+0.0 pts

19Santa Clara County, CACA1,914,3910.1%+0.0 pts

20Los Angeles County, CACA9,694,9340.1%+0.0 pts

21Butte County, CACA209,2110.1%+0.0 pts

22Orange County, CACA3,149,5070.1%−0.0 pts

23Santa Cruz County, CACA258,8520.1%−0.0 pts

24Alameda County, CACA1,636,6300.1%+0.0 pts

25Shasta County, CACA181,6480.0%−0.1 pts

26Riverside County, CACA2,544,9160.0%+0.0 pts

27Sacramento County, CACA1,618,4600.0%−0.0 pts

28San Diego County, CACA3,282,2480.0%−0.0 pts

29San Bernardino County, CACA2,224,0910.0%−0.0 pts

30San Joaquin County, CACA823,8150.0%+0.0 pts

31Monterey County, CACA433,7290.0%−0.0 pts

32Colusa County, CACA21,8360.0%–

33Glenn County, CACA28,1410.0%−0.0 pts

34Stanislaus County, CACA557,7190.0%−0.0 pts

35Humboldt County, CACA131,6470.0%−0.0 pts

36Solano County, CACA455,3760.0%−0.0 pts

37Mendocino County, CACA88,1220.0%−0.1 pts

38Tulare County, CACA485,1460.0%+0.0 pts

39Calaveras County, CACA46,6050.0%−0.3 pts

40Merced County, CACA297,2600.0%+0.0 pts

41Lake County, CACA67,7720.0%−0.3 pts

42Fresno County, CACA1,035,4560.0%+0.0 pts

43Sutter County, CACA98,7870.0%–

44Kern County, CACA927,0680.0%−0.0 pts

45Madera County, CACA167,9270.0%−0.0 pts

46Yuba County, CACA88,6910.0%−0.1 pts

47San Benito County, CACA70,0820.0%−0.2 pts

48Kings County, CACA154,3270.0%−0.0 pts

SHOWING 1–48 OF 48

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