RANKING · 2024 ACS · 46 SHOWN OF 46

Highest Chamorro population share, California counties

California counties ranked by the share of all residents who are Chamorro (2024 American Community Survey). A concentration measure: Chamorro residents as a percentage of total population. This list covers the 46 counties in California that qualify, ranked against each other statewide. The median across all 46 is 0.1%. Biggest climber in the top 100 since 2020: Tuolumne County, CA, up 37 places to #7.

Chamorro Americans: full group profile →

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SAME RANKING BYCities States Metros

YEAR2020 2024

Highest Chamorro population share by state

RANKPLACESTATEPOPCHAMORRO SHAREVS 2020

01Solano County, CACA455,3760.6%−0.1 pts

02▲5Yuba County, CACA88,6910.3%+0.1 pts

03▼1Sutter County, CACA98,7870.3%−0.3 pts

04▼1San Diego County, CACA3,282,2480.2%0.0 pts

05▲9Shasta County, CACA181,6480.2%+0.1 pts

06▲22Stanislaus County, CACA557,7190.2%+0.1 pts

07▲37Tuolumne County, CACA53,1600.2%+0.2 pts

08▲1Alameda County, CACA1,636,6300.2%0.0 pts

09▲9Yolo County, CACA224,4100.2%0.0 pts

10▲2San Benito County, CACA70,0820.1%0.0 pts

11▼3Monterey County, CACA433,7290.1%−0.1 pts

12▲1Sacramento County, CACA1,618,4600.1%0.0 pts

13▼3San Joaquin County, CACA823,8150.1%−0.1 pts

14▲3Santa Clara County, CACA1,914,3910.1%0.0 pts

15▼4Riverside County, CACA2,544,9160.1%−0.1 pts

16▲3San Mateo County, CACA743,5680.1%0.0 pts

17▲4San Bernardino County, CACA2,224,0910.1%0.0 pts

18▲28El Dorado County, CACA192,3230.1%+0.1 pts

19▼4Contra Costa County, CACA1,170,0700.1%−0.1 pts

20▲3San Francisco County, CACA826,0790.1%0.0 pts

21▼1Placer County, CACA442,0810.1%0.0 pts

22▼18Humboldt County, CACA131,6470.1%−0.2 pts

23▼1Orange County, CACA3,149,5070.1%0.0 pts

24▲9Los Angeles County, CACA9,694,9340.1%0.0 pts

25▲13Sonoma County, CACA486,4440.1%0.0 pts

26▲14Santa Cruz County, CACA258,8520.1%0.0 pts

27▲8Ventura County, CACA830,8510.1%0.0 pts

28▲2Fresno County, CACA1,035,4560.1%0.0 pts

29▲7Santa Barbara County, CACA442,0650.1%0.0 pts

30▲2Kern County, CACA927,0680.0%0.0 pts

31▲10Kings County, CACA154,3270.0%0.0 pts

32Siskiyou County, CACA42,0130.0%–

33▼9Napa County, CACA132,9490.0%0.0 pts

34Lassen County, CACA28,1170.0%–

35▲7Merced County, CACA297,2600.0%0.0 pts

36▼2Inyo County, CACA18,1580.0%0.0 pts

37▼8Tulare County, CACA485,1460.0%0.0 pts

38▲9Madera County, CACA167,9270.0%0.0 pts

39▲4San Luis Obispo County, CACA282,3670.0%0.0 pts

40▼9Imperial County, CACA181,4110.0%0.0 pts

41▼2Amador County, CACA41,8760.0%0.0 pts

42▼15Butte County, CACA209,2110.0%−0.1 pts

43▼37Nevada County, CACA101,9110.0%−0.2 pts

44▼18Marin County, CACA253,6940.0%−0.1 pts

45▼29Mendocino County, CACA88,1220.0%−0.1 pts

46▼1Lake County, CACA67,7720.0%0.0 pts

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES