RANKING · 2010 CENSUS · 40 SHOWN OF 40

Largest Ecuadorian population, California counties · 2010

California counties ranked by the number of residents who are Ecuadorian origin, from the 2023 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 40 counties in California that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

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

Largest Ecuadorian population by state

RANKPLACESTATEPOPECUADORIAN POPULATIONVS 2000

01Los Angeles County, CACA9,694,93419,615–

02Orange County, CACA3,149,5073,091–

03San Bernardino County, CACA2,224,0912,759–

04Riverside County, CACA2,544,9161,926–

05San Diego County, CACA3,282,2481,865–

06Ventura County, CACA830,851841–

07Santa Clara County, CACA1,914,391730–

08San Mateo County, CACA743,568696–

09Kern County, CACA927,068602–

10Alameda County, CACA1,636,630596–

11Contra Costa County, CACA1,170,070587–

12Sacramento County, CACA1,618,460574–

13San Francisco County, CACA826,079478–

14Fresno County, CACA1,035,456369–

15Marin County, CACA253,694234–

16San Joaquin County, CACA823,815225–

17Santa Barbara County, CACA442,065161–

18Solano County, CACA455,376137–

19San Luis Obispo County, CACA282,367136–

20Sonoma County, CACA486,444134–

21Yolo County, CACA224,410122–

22Monterey County, CACA433,729112–

23Stanislaus County, CACA557,71966–

24El Dorado County, CACA192,32364–

25Santa Cruz County, CACA258,85263–

26Mariposa County, CACA16,91854–

27Madera County, CACA167,92738–

28Humboldt County, CACA131,64718–

29Imperial County, CACA181,41118–

30Kings County, CACA154,32718–

31Plumas County, CACA18,58317–

32Lassen County, CACA28,11716–

33Napa County, CACA132,94913–

34Del Norte County, CACA26,41013–

35Sutter County, CACA98,78712–

36Shasta County, CACA181,64810–

37Mendocino County, CACA88,12210–

38Placer County, CACA442,0817–

39Amador County, CACA41,8767–

40Glenn County, CACA28,1417–

SHOWING 1–40 OF 40

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