Ranking of California Counties By Percentage of Population with Swiss Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 92.46K people in California with Swiss ancestry (0.23% of California population). Among all California counties, Sierra County had the highest percentage of its population with Swiss ancestry (6.30%), followed by Modoc County (2.75%), and Inyo County (1.20%).
The chart and table below shows the top 10 counties with high percentage of its population having Swiss ancestry.
You can see similar information for other states and for other ancestry groups in California.
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Related Topics: California ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of California Counties By Percentage of Population with Swiss Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Sierra County | 6.30 |
| 2 | Modoc County | 2.75 |
| 3 | Inyo County | 1.20 |
| 4 | Sonoma County | 0.80 |
| 5 | Alpine County | 0.74 |
| 6 | San Luis Obispo County | 0.70 |
| 7 | Tuolumne County | 0.64 |
| 8 | Marin County | 0.63 |
| 9 | Napa County | 0.61 |
| 10 | Humboldt County | 0.56 |
| 11 | El Dorado County | 0.55 |
| 12 | Mono County | 0.53 |
| 13 | Placer County | 0.51 |
| 14 | Mendocino County | 0.49 |
| 15 | Amador County | 0.47 |
| 16 | San Benito County | 0.46 |
| 17 | Butte County | 0.45 |
| 18 | Lassen County | 0.44 |
| 18 | Monterey County | 0.44 |
| 18 | Santa Barbara County | 0.44 |
| 19 | Siskiyou County | 0.43 |
| 20 | Nevada County | 0.41 |
| 20 | Santa Cruz County | 0.41 |
| 21 | Plumas County | 0.40 |
| 22 | Shasta County | 0.39 |
| 23 | Lake County | 0.38 |
| 23 | Yolo County | 0.38 |
| 24 | Stanislaus County | 0.35 |
| 25 | Colusa County | 0.34 |
| 25 | Del Norte County | 0.34 |
| 25 | Sacramento County | 0.34 |
| 25 | San Mateo County | 0.34 |
| 26 | San Francisco County | 0.33 |
| 27 | Glenn County | 0.31 |
| 28 | Contra Costa County | 0.29 |
| 28 | Santa Clara County | 0.29 |
| 29 | Tehama County | 0.26 |
| 30 | Alameda County | 0.25 |
| 31 | San Diego County | 0.24 |
| 32 | Trinity County | 0.23 |
| 32 | Ventura County | 0.23 |
| 33 | Mariposa County | 0.22 |
| 33 | Solano County | 0.22 |
| 34 | Merced County | 0.21 |
| 35 | Orange County | 0.20 |
| 35 | Sutter County | 0.20 |
| 36 | San Joaquin County | 0.19 |
| 37 | Calaveras County | 0.16 |
| 37 | Imperial County | 0.16 |
| 38 | Fresno County | 0.15 |
| 38 | Kern County | 0.15 |
| 38 | Kings County | 0.15 |
| 39 | Los Angeles County | 0.14 |
| 40 | Riverside County | 0.13 |
| 40 | San Bernardino County | 0.13 |
| 41 | Tulare County | 0.12 |
| 41 | Yuba County | 0.12 |
| 42 | Madera County | 0.11 |
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