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 (2023 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.

CaliforniaAll states All rankings

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 2000

01Alpine County, CACA1,0430.8%–

02Sacramento County, CACA1,618,4600.5%–

03Placer County, CACA442,0810.4%–

04Marin County, CACA253,6940.3%–

05Tuolumne County, CACA53,1600.3%–

06El Dorado County, CACA192,3230.2%–

07Yuba County, CACA88,6910.2%–

08Orange County, CACA3,149,5070.2%–

09Glenn County, CACA28,1410.2%–

10Mendocino County, CACA88,1220.2%–

11Yolo County, CACA224,4100.2%–

12Butte County, CACA209,2110.2%–

13Amador County, CACA41,8760.2%–

14San Mateo County, CACA743,5680.2%–

15Santa Clara County, CACA1,914,3910.2%–

16Nevada County, CACA101,9110.2%–

17Los Angeles County, CACA9,694,9340.2%–

18Santa Cruz County, CACA258,8520.2%–

19San Francisco County, CACA826,0790.2%–

20Alameda County, CACA1,636,6300.1%–

21Ventura County, CACA830,8510.1%–

22Contra Costa County, CACA1,170,0700.1%–

23Sonoma County, CACA486,4440.1%–

24Riverside County, CACA2,544,9160.1%–

25San Luis Obispo County, CACA282,3670.1%–

26Napa County, CACA132,9490.1%–

27San Diego County, CACA3,282,2480.1%–

28San Bernardino County, CACA2,224,0910.1%–

29Madera County, CACA167,9270.1%–

30Monterey County, CACA433,7290.1%–

31Solano County, CACA455,3760.1%–

32Santa Barbara County, CACA442,0650.1%–

33Shasta County, CACA181,6480.1%–

34Sutter County, CACA98,7870.1%–

35Inyo County, CACA18,1580.1%–

36Stanislaus County, CACA557,7190.1%–

37Lassen County, CACA28,1170.1%–

38San Joaquin County, CACA823,8150.1%–

39Siskiyou County, CACA42,0130.0%–

40San Benito County, CACA70,0820.0%–

41Kern County, CACA927,0680.0%–

42Tulare County, CACA485,1460.0%–

43Lake County, CACA67,7720.0%–

44Fresno County, CACA1,035,4560.0%–

45Plumas County, CACA18,5830.0%–

46Humboldt County, CACA131,6470.0%–

47Merced County, CACA297,2600.0%–

48Tehama County, CACA64,6650.0%–

49Kings County, CACA154,3270.0%–

50Imperial County, CACA181,4110.0%–

SHOWING 1–50 OF 50

Download CSV (full list, 50 rows)

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