RANKING · 2020 CENSUS · 40 SHOWN OF 40

Highest Nigerian population share, California counties · 2020

California counties ranked by the share of all residents who are Nigerian ancestry (2023 American Community Survey). A concentration measure: Nigerian residents as a percentage of total population. This list covers the 40 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

RANKPLACESTATEPOPNIGERIAN SHAREVS 2000

01San Benito County, CACA70,0820.3%–

02Marin County, CACA253,6940.3%–

03Alameda County, CACA1,636,6300.2%–

04Contra Costa County, CACA1,170,0700.2%–

05Del Norte County, CACA26,4100.2%–

06Lassen County, CACA28,1170.2%–

07Riverside County, CACA2,544,9160.2%–

08Los Angeles County, CACA9,694,9340.1%–

09San Luis Obispo County, CACA282,3670.1%–

10San Bernardino County, CACA2,224,0910.1%–

11Kings County, CACA154,3270.1%–

12San Joaquin County, CACA823,8150.1%–

13Sacramento County, CACA1,618,4600.1%–

14Solano County, CACA455,3760.1%–

15San Francisco County, CACA826,0790.1%–

16Imperial County, CACA181,4110.1%–

17San Mateo County, CACA743,5680.1%–

18Stanislaus County, CACA557,7190.1%–

19Kern County, CACA927,0680.1%–

20San Diego County, CACA3,282,2480.1%–

21Santa Clara County, CACA1,914,3910.1%–

22Orange County, CACA3,149,5070.0%–

23Fresno County, CACA1,035,4560.0%–

24Tulare County, CACA485,1460.0%–

25Yolo County, CACA224,4100.0%–

26Ventura County, CACA830,8510.0%–

27Santa Barbara County, CACA442,0650.0%–

28Butte County, CACA209,2110.0%–

29Tuolumne County, CACA53,1600.0%–

30Sonoma County, CACA486,4440.0%–

31Santa Cruz County, CACA258,8520.0%–

32Monterey County, CACA433,7290.0%–

33Siskiyou County, CACA42,0130.0%–

34Napa County, CACA132,9490.0%–

35Merced County, CACA297,2600.0%–

36Amador County, CACA41,8760.0%–

37El Dorado County, CACA192,3230.0%–

38Humboldt County, CACA131,6470.0%–

39Shasta County, CACA181,6480.0%–

40Placer County, CACA442,0810.0%–

SHOWING 1–40 OF 40

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