RANKING · 2020 CENSUS · 50 SHOWN OF 50

Highest Romanian population share, California counties · 2020

California counties ranked by the share of all residents who are Romanian ancestry (2020 American Community Survey). A concentration measure: Romanian residents as a percentage of total population. This list covers the 50 counties in California that qualify, ranked against each other statewide. The median across all 50 is 0.1%.

Romanian 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

RANKPLACESTATEPOPROMANIAN SHAREVS 2010

01Alpine County, CACA1,0430.8%–

02Sacramento County, CACA1,618,4600.5%+0.1 pts

03Placer County, CACA442,0810.4%+0.2 pts

04Marin County, CACA253,6940.3%−0.2 pts

05Tuolumne County, CACA53,1600.3%+0.2 pts

06El Dorado County, CACA192,3230.2%+0.1 pts

07Yuba County, CACA88,6910.2%−0.9 pts

08Orange County, CACA3,149,5070.2%−0.1 pts

09Glenn County, CACA28,1410.2%–

10Mendocino County, CACA88,1220.2%0.0 pts

11Yolo County, CACA224,4100.2%0.0 pts

12Butte County, CACA209,2110.2%0.0 pts

13Amador County, CACA41,8760.2%–

14San Mateo County, CACA743,5680.2%0.0 pts

15Santa Clara County, CACA1,914,3910.2%0.0 pts

16Nevada County, CACA101,9110.2%0.0 pts

17Los Angeles County, CACA9,694,9340.2%0.0 pts

18Santa Cruz County, CACA258,8520.2%−0.1 pts

19San Francisco County, CACA826,0790.2%−0.1 pts

20Alameda County, CACA1,636,6300.1%0.0 pts

21Ventura County, CACA830,8510.1%−0.1 pts

22Contra Costa County, CACA1,170,0700.1%0.0 pts

23Sonoma County, CACA486,4440.1%0.0 pts

24Riverside County, CACA2,544,9160.1%−0.1 pts

25San Luis Obispo County, CACA282,3670.1%0.0 pts

26Napa County, CACA132,9490.1%+0.1 pts

27San Diego County, CACA3,282,2480.1%0.0 pts

28San Bernardino County, CACA2,224,0910.1%0.0 pts

29Madera County, CACA167,9270.1%0.0 pts

30Monterey County, CACA433,7290.1%0.0 pts

31Solano County, CACA455,3760.1%0.0 pts

32Santa Barbara County, CACA442,0650.1%0.0 pts

33Shasta County, CACA181,6480.1%0.0 pts

34Sutter County, CACA98,7870.1%0.0 pts

35Inyo County, CACA18,1580.1%0.0 pts

36Stanislaus County, CACA557,7190.1%−0.1 pts

37Lassen County, CACA28,1170.1%0.0 pts

38San Joaquin County, CACA823,8150.1%0.0 pts

39Siskiyou County, CACA42,0130.0%−0.2 pts

40San Benito County, CACA70,0820.0%–

41Kern County, CACA927,0680.0%0.0 pts

42Tulare County, CACA485,1460.0%0.0 pts

43Lake County, CACA67,7720.0%−0.1 pts

44Fresno County, CACA1,035,4560.0%0.0 pts

45Plumas County, CACA18,5830.0%–

46Humboldt County, CACA131,6470.0%−0.1 pts

47Merced County, CACA297,2600.0%0.0 pts

48Tehama County, CACA64,6650.0%−0.1 pts

49Kings County, CACA154,3270.0%0.0 pts

50Imperial County, CACA181,4110.0%0.0 pts

SHOWING 1–50 OF 50

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