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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: -420 tax returns · -719 people · +$93,144,000 AGI
| County | Returns | AGI |
|---|---|---|
| Solano County, CA | 567 | $39,604,000 |
| Sonoma County, CA | 247 | $24,336,000 |
| Contra Costa County, CA | 219 | $28,939,000 |
| San Francisco County, CA | 166 | $63,899,000 |
| Alameda County, CA | 152 | $27,022,000 |
| Los Angeles County, CA | 130 | $18,998,000 |
| San Mateo County, CA | 99 | $21,181,000 |
| Sacramento County, CA | 87 | $7,005,000 |
| Santa Clara County, CA | 86 | $21,631,000 |
| Marin County, CA | 82 | $14,478,000 |
| County | Returns | AGI |
|---|---|---|
| Solano County, CA | 796 | $55,976,000 |
| Sonoma County, CA | 317 | $24,268,000 |
| Sacramento County, CA | 148 | $9,964,000 |
| Contra Costa County, CA | 136 | $11,739,000 |
| San Francisco County, CA | 113 | $16,024,000 |
| Los Angeles County, CA | 104 | $7,954,000 |
| Alameda County, CA | 98 | $11,434,000 |
| San Diego County, CA | 80 | $8,793,000 |
| Lake County, CA | 62 | $3,143,000 |
| Santa Clara County, CA | 51 | $5,733,000 |
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.