RANKING · 2020 CENSUS · 36 SHOWN OF 36

Highest Bulgarian population share, California counties · 2020

California counties ranked by the share of all residents who are Bulgarian ancestry (2023 American Community Survey). A concentration measure: Bulgarian residents as a percentage of total population. This list covers the 36 counties in California that qualify, ranked against each other statewide.

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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 Bulgarian population share by state

RANKPLACESTATEPOPBULGARIAN SHAREVS 2000

01El Dorado County, CACA192,3230.1%–

02Solano County, CACA455,3760.1%–

03Marin County, CACA253,6940.1%–

04Placer County, CACA442,0810.1%–

05San Luis Obispo County, CACA282,3670.1%–

06San Francisco County, CACA826,0790.1%–

07Contra Costa County, CACA1,170,0700.1%–

08Santa Clara County, CACA1,914,3910.1%–

09San Mateo County, CACA743,5680.1%–

10Sacramento County, CACA1,618,4600.1%–

11San Diego County, CACA3,282,2480.1%–

12Santa Barbara County, CACA442,0650.0%–

13Lake County, CACA67,7720.0%–

14Yolo County, CACA224,4100.0%–

15Sonoma County, CACA486,4440.0%–

16Los Angeles County, CACA9,694,9340.0%–

17Alameda County, CACA1,636,6300.0%–

18Santa Cruz County, CACA258,8520.0%–

19Orange County, CACA3,149,5070.0%–

20Napa County, CACA132,9490.0%–

21Riverside County, CACA2,544,9160.0%–

22Monterey County, CACA433,7290.0%–

23Nevada County, CACA101,9110.0%–

24Shasta County, CACA181,6480.0%–

25Madera County, CACA167,9270.0%–

26Ventura County, CACA830,8510.0%–

27Yuba County, CACA88,6910.0%–

28Fresno County, CACA1,035,4560.0%–

29Tulare County, CACA485,1460.0%–

30Humboldt County, CACA131,6470.0%–

31Butte County, CACA209,2110.0%–

32San Bernardino County, CACA2,224,0910.0%–

33Kern County, CACA927,0680.0%–

34San Joaquin County, CACA823,8150.0%–

35Siskiyou County, CACA42,0130.0%–

36Sutter County, CACA98,7870.0%–

SHOWING 1–36 OF 36

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