RANKING · 2024 ACS · 41 SHOWN OF 41

Highest Ecuadorian population share, California counties

California counties ranked by the share of all residents who are Ecuadorian origin (2024 American Community Survey). A concentration measure: Ecuadorian residents as a percentage of total population. This list covers the 41 counties in California that qualify, ranked against each other statewide.

Ecuadorian Americans: full group profile →

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RELATEDLargest Mexican population Highest Mexican population share Largest Puerto Rican population Highest Puerto Rican population share Largest Cuban population Highest Cuban population share

YEAR2010 2020 2024

Highest Ecuadorian population share by state

RANKPLACESTATEPOPECUADORIAN SHAREVS 2010

01Marin County, CACA253,6940.3%+0.2 pts

02Tuolumne County, CACA53,1600.3%–

03Tehama County, CACA64,6650.3%–

04Los Angeles County, CACA9,694,9340.2%+0.0 pts

05San Bernardino County, CACA2,224,0910.2%+0.1 pts

06Orange County, CACA3,149,5070.2%+0.1 pts

07Plumas County, CACA18,5830.1%+0.1 pts

08Ventura County, CACA830,8510.1%+0.0 pts

09Riverside County, CACA2,544,9160.1%+0.0 pts

10Contra Costa County, CACA1,170,0700.1%+0.1 pts

11Modoc County, CACA8,4260.1%–

12San Diego County, CACA3,282,2480.1%+0.0 pts

13Placer County, CACA442,0810.1%+0.1 pts

14San Francisco County, CACA826,0790.1%+0.0 pts

15Napa County, CACA132,9490.1%+0.1 pts

16San Mateo County, CACA743,5680.1%−0.0 pts

17Humboldt County, CACA131,6470.1%+0.1 pts

18Alameda County, CACA1,636,6300.1%+0.0 pts

19Santa Clara County, CACA1,914,3910.1%+0.0 pts

20Sonoma County, CACA486,4440.1%+0.0 pts

21San Benito County, CACA70,0820.1%–

22Monterey County, CACA433,7290.1%+0.0 pts

23San Luis Obispo County, CACA282,3670.1%+0.0 pts

24Santa Barbara County, CACA442,0650.1%+0.0 pts

25Kern County, CACA927,0680.1%−0.0 pts

26Yolo County, CACA224,4100.0%−0.0 pts

27Santa Cruz County, CACA258,8520.0%+0.0 pts

28Stanislaus County, CACA557,7190.0%+0.0 pts

29Sacramento County, CACA1,618,4600.0%+0.0 pts

30Fresno County, CACA1,035,4560.0%−0.0 pts

31Butte County, CACA209,2110.0%–

32Shasta County, CACA181,6480.0%+0.0 pts

33Kings County, CACA154,3270.0%+0.0 pts

34Solano County, CACA455,3760.0%−0.0 pts

35San Joaquin County, CACA823,8150.0%−0.0 pts

36Tulare County, CACA485,1460.0%–

37Madera County, CACA167,9270.0%−0.0 pts

38Merced County, CACA297,2600.0%–

39Mariposa County, CACA16,9180.0%−0.3 pts

40El Dorado County, CACA192,3230.0%−0.0 pts

41Imperial County, CACA181,4110.0%−0.0 pts

SHOWING 1–41 OF 41

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES