Ranking of California Counties By Population with Polish Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 452.02K people in California with Polish ancestry. Among all California counties, Los Angeles County had the highest population with Polish ancestry (108.33K), followed by San Diego County (54.67K), and Orange County (45.02K).
The chart and table below shows the top 10 counties with high number of people with Polish 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 Population with Polish Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Los Angeles County | 108331 |
| 2 | San Diego County | 54673 |
| 3 | Orange County | 45021 |
| 4 | Riverside County | 23108 |
| 5 | Santa Clara County | 20599 |
| 6 | San Bernardino County | 18379 |
| 7 | Alameda County | 17863 |
| 8 | Sacramento County | 17747 |
| 9 | San Francisco County | 15886 |
| 10 | Contra Costa County | 15446 |
| 11 | Ventura County | 14433 |
| 12 | San Mateo County | 10428 |
| 13 | Sonoma County | 8591 |
| 14 | Marin County | 6932 |
| 15 | Santa Barbara County | 5875 |
| 16 | Placer County | 5774 |
| 17 | Kern County | 5238 |
| 18 | San Luis Obispo County | 4961 |
| 19 | Santa Cruz County | 4875 |
| 20 | San Joaquin County | 4632 |
| 21 | Solano County | 3721 |
| 22 | Fresno County | 3638 |
| 23 | Monterey County | 3208 |
| 24 | El Dorado County | 3026 |
| 25 | Stanislaus County | 2983 |
| 26 | Shasta County | 2530 |
| 27 | Yolo County | 2493 |
| 28 | Butte County | 2486 |
| 29 | Napa County | 1858 |
| 30 | Nevada County | 1707 |
| 31 | Humboldt County | 1667 |
| 32 | Tulare County | 1353 |
| 33 | Merced County | 1301 |
| 34 | Mendocino County | 1191 |
| 35 | Tuolumne County | 991 |
| 36 | Madera County | 868 |
| 37 | Calaveras County | 851 |
| 38 | Yuba County | 799 |
| 39 | Lake County | 704 |
| 40 | Mono County | 613 |
| 41 | Sutter County | 571 |
| 42 | Tehama County | 533 |
| 43 | Siskiyou County | 529 |
| 44 | Kings County | 462 |
| 45 | San Benito County | 445 |
| 46 | Amador County | 425 |
| 47 | Imperial County | 361 |
| 48 | Lassen County | 342 |
| 49 | Mariposa County | 328 |
| 50 | Del Norte County | 299 |
| 51 | Glenn County | 243 |
| 52 | Inyo County | 232 |
| 53 | Plumas County | 125 |
| 54 | Modoc County | 90 |
| 55 | Colusa County | 89 |
| 56 | Trinity County | 88 |
| 57 | Sierra County | 72 |
| 58 | Alpine County | 5 |
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