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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: -9,835 tax returns · -22,360 people · $-3,131,571,000 AGI
| County | Returns | AGI |
|---|---|---|
| Alameda County, CA | 4,634 | $742,481,000 |
| San Mateo County, CA | 3,874 | $1,010,532,000 |
| Los Angeles County, CA | 2,354 | $297,299,000 |
| San Francisco County, CA | 2,061 | $513,134,000 |
| King County, WA | 1,214 | $271,714,000 |
| San Diego County, CA | 1,191 | $160,349,000 |
| Contra Costa County, CA | 1,002 | $136,824,000 |
| Orange County, CA | 919 | $105,066,000 |
| Santa Cruz County, CA | 869 | $93,953,000 |
| San Joaquin County, CA | 861 | $75,361,000 |
| County | Returns | AGI |
|---|---|---|
| Alameda County, CA | 6,578 | $1,262,447,000 |
| San Mateo County, CA | 3,879 | $975,649,000 |
| San Francisco County, CA | 3,335 | $607,627,000 |
| Los Angeles County, CA | 2,171 | $295,166,000 |
| San Joaquin County, CA | 2,060 | $272,198,000 |
| Contra Costa County, CA | 1,655 | $346,287,000 |
| San Diego County, CA | 1,584 | $264,233,000 |
| Sacramento County, CA | 1,515 | $167,329,000 |
| King County, WA | 1,462 | $342,022,000 |
| Orange County, CA | 1,101 | $208,853,000 |
IRS migration data tracks where tax filers lived in consecutive years. A "return" is roughly a household; "AGI" is the adjusted gross income that moved with them. Net migration = inflow − outflow. Small county-pair flows are suppressed by the IRS for privacy and shown blank.
Source: IRS SOI Migration Data. License: CC0 1.0.