RANKING · 2024 ACS · 51 SHOWN OF 51

Highest Romanian population share, California counties

California counties ranked by the share of all residents who are Romanian ancestry (2024 American Community Survey). A concentration measure: Romanian residents as a percentage of total population. This list covers the 51 counties in California that qualify, ranked against each other statewide. The median across all 51 is 0.1%. Biggest climber in the top 100 since 2020: Kings County, CA, up 23 places to #26.

Romanian Americans: full group profile →

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPROMANIAN SHAREVS 2010

01▲1Sacramento County, CACA1,618,4600.4%0.0 pts

02▲1Placer County, CACA442,0810.4%+0.2 pts

03▼2Alpine County, CACA1,0430.4%–

04Sierra County, CACA3,0980.3%–

05▲2Yuba County, CACA88,6910.3%−0.9 pts

06▲2Orange County, CACA3,149,5070.2%−0.1 pts

07▲12San Francisco County, CACA826,0790.2%0.0 pts

08▼4Marin County, CACA253,6940.2%−0.3 pts

09▲7Nevada County, CACA101,9110.2%0.0 pts

10▲8Santa Cruz County, CACA258,8520.2%0.0 pts

11Yolo County, CACA224,4100.2%0.0 pts

12▲8Alameda County, CACA1,636,6300.2%0.0 pts

13▲11Riverside County, CACA2,544,9160.2%−0.1 pts

14San Mateo County, CACA743,5680.2%0.0 pts

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

16▲1Los Angeles County, CACA9,694,9340.2%0.0 pts

17▼5Butte County, CACA209,2110.2%0.0 pts

18▲3Ventura County, CACA830,8510.1%−0.1 pts

19▼13El Dorado County, CACA192,3230.1%−0.1 pts

20▲7San Diego County, CACA3,282,2480.1%0.0 pts

21▲2Sonoma County, CACA486,4440.1%0.0 pts

22▼17Tuolumne County, CACA53,1600.1%0.0 pts

23▼1Contra Costa County, CACA1,170,0700.1%0.0 pts

24▼14Mendocino County, CACA88,1220.1%−0.1 pts

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

26▲23Kings County, CACA154,3270.1%+0.1 pts

27▲16Lake County, CACA67,7720.1%−0.1 pts

28▲4Santa Barbara County, CACA442,0650.1%0.0 pts

29▼1San Bernardino County, CACA2,224,0910.1%−0.1 pts

30Del Norte County, CACA26,4100.1%–

31Calaveras County, CACA46,6050.1%0.0 pts

32▲3Inyo County, CACA18,1580.1%0.0 pts

33▼7Napa County, CACA132,9490.1%0.0 pts

34▲12Humboldt County, CACA131,6470.1%0.0 pts

35▲4Siskiyou County, CACA42,0130.1%−0.1 pts

36▼5Solano County, CACA455,3760.1%0.0 pts

37▼8Madera County, CACA167,9270.1%0.0 pts

38▲3Kern County, CACA927,0680.1%0.0 pts

39▲5Fresno County, CACA1,035,4560.1%0.0 pts

40▼3Lassen County, CACA28,1170.1%0.0 pts

41▲7Tehama County, CACA64,6650.0%−0.1 pts

42▼6Stanislaus County, CACA557,7190.0%−0.2 pts

43▼9Sutter County, CACA98,7870.0%0.0 pts

44▼31Amador County, CACA41,8760.0%–

45▼15Monterey County, CACA433,7290.0%0.0 pts

46▼13Shasta County, CACA181,6480.0%0.0 pts

47▼5Tulare County, CACA485,1460.0%0.0 pts

48▼10San Joaquin County, CACA823,8150.0%0.0 pts

49▼2Merced County, CACA297,2600.0%0.0 pts

50▼10San Benito County, CACA70,0820.0%–

51▼1Imperial County, CACA181,4110.0%0.0 pts

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES