Ranking of California Counties By Net Migration Rate per 1K in 2021
Updated on June 21, 2025.
Based on the US Census Vintage data estimates, in 2021, the Net Migration Rate per 1K for California was -11.02. Among all California counties, Alpine County had the highest net migration rate (38.62), followed by San Benito County (29.34), and Sierra County (26.35).
The chart below shows the top 10 counties, and the table below shows the ranking of all California counties.
You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.
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Related Topics: California Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage), 2021 Census.
See this for other years:
Ranking of California Counties By Net Migration Rate per 1K in 2021
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| Rank | County | Net Migration Rate |
|---|---|---|
| 1 | Alpine County | 38.62 |
| 2 | San Benito County | 29.34 |
| 3 | Sierra County | 26.35 |
| 4 | Calaveras County | 25.87 |
| 5 | Amador County | 21.92 |
| 6 | Placer County | 17.92 |
| 7 | Nevada County | 16.85 |
| 8 | El Dorado County | 14.85 |
| 9 | Plumas County | 13.64 |
| 10 | Madera County | 12.5 |
| 11 | Riverside County | 10.92 |
| 12 | Lake County | 9.87 |
| 13 | Yuba County | 8.35 |
| 14 | Siskiyou County | 7.99 |
| 15 | San Joaquin County | 6.22 |
| 16 | Mariposa County | 4.79 |
| 17 | Trinity County | 4.35 |
| 18 | Shasta County | 4.24 |
| 19 | Kern County | 2.32 |
| 20 | Tuolumne County | 1.52 |
| 21 | Merced County | 1.13 |
| 22 | Mendocino County | 1.05 |
| 23 | Del Norte County | 0.65 |
| 24 | Tulare County | 0.41 |
| 25 | San Bernardino County | 0.28 |
| 26 | Modoc County | -0.11 |
| 27 | Fresno County | -1.57 |
| 28 | Sacramento County | -1.81 |
| 29 | Tehama County | -2.04 |
| 30 | Mono County | -2.34 |
| 31 | Colusa County | -2.56 |
| 32 | Inyo County | -2.69 |
| 33 | Stanislaus County | -3.97 |
| 34 | Contra Costa County | -4.57 |
| 35 | Ventura County | -6.1 |
| 36 | Imperial County | -6.16 |
| 37 | Sutter County | -6.65 |
| 38 | Solano County | -6.87 |
| 39 | Kings County | -7.15 |
| 40 | Monterey County | -7.76 |
| 41 | San Luis Obispo County | -7.77 |
| 42 | Sonoma County | -7.81 |
| 43 | Marin County | -7.84 |
| 44 | Humboldt County | -7.98 |
| 45 | Glenn County | -8.3 |
| 46 | Napa County | -8.39 |
| 47 | Orange County | -9.64 |
| 48 | San Diego County | -11.13 |
| 49 | Lassen County | -15.2 |
| 50 | Butte County | -15.58 |
| 51 | Los Angeles County | -18.74 |
| 52 | Yolo County | -20.15 |
| 53 | Alameda County | -23.77 |
| 54 | Santa Clara County | -26.4 |
| 55 | Santa Barbara County | -26.64 |
| 56 | San Mateo County | -32.01 |
| 57 | Santa Cruz County | -38.2 |
| 58 | San Francisco County | -65.65 |
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