California Net Migration By County in 2021
According to the US Census Bureau estimates, in 2021, the net migration for California was -433,459. Riverside County had the highest net migration (26,646) followed by Placer County (7,336), and San Joaquin County (4,881). On the other hand, Los Angeles County had the lowest net migration (-185,627), followed by San Francisco County (-55,485), and Santa Clara County (-50,198).
Net migration for a county refers to the difference between the number of migrants, both domestic and international, moving to the county and those leaving the county. Or to put it simply, the net migration for a given county is the inbound migration minus the outbound migration for that county.
You can also see similar information for other states and also by state for the United States.
Hover over or click on the chart to see this information for each county. The data can also be filtered, sorted, and explored further in a table below.
| County | Net Migration |
|---|---|
| Alameda | -39519 |
| Alpine | 46 |
| Amador | 897 |
| Butte | -3245 |
| Calaveras | 1185 |
| Colusa | -56 |
| Contra Costa | -5321 |
| Del Norte | 18 |
| El Dorado | 2859 |
| Fresno | -1593 |
| Glenn | -239 |
| Humboldt | -1083 |
| Imperial | -1106 |
| Inyo | -51 |
| Kern | 2107 |
| Kings | -1092 |
| Lake | 675 |
| Lassen | -488 |
| Los Angeles | -185627 |
| Madera | 1971 |
| Marin | -2041 |
| Mariposa | 82 |
| Mendocino | 96 |
| Merced | 321 |
| Modoc | -1 |
| Mono | -31 |
| Monterey | -3413 |
| Napa | -1148 |
| Nevada | 1734 |
| Orange | -30600 |
| Placer | 7336 |
| Plumas | 271 |
| Riverside | 26646 |
| Sacramento | -2869 |
| San Benito | 1925 |
| San Bernardino | 612 |
| San Diego | -36598 |
| San Francisco | -55485 |
| San Joaquin | 4881 |
| San Luis Obispo | -2182 |
| San Mateo | -24043 |
| Santa Barbara | -11792 |
| Santa Clara | -50198 |
| Santa Cruz | -10175 |
| Shasta | 773 |
| Sierra | 86 |
| Siskiyou | 352 |
| Solano | -3106 |
| Sonoma | -3800 |
| Stanislaus | -2197 |
| Sutter | -660 |
| Tehama | -134 |
| Trinity | 70 |
| Tulare | 195 |
| Tuolumne | 84 |
| Ventura | -5132 |
| Yolo | -4345 |
| Yuba | 689 |
