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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: -1,243 tax returns · -2,053 people · $-9,418,000 AGI
| County | Returns | AGI |
|---|---|---|
| Santa Clara County, CA | 1,029 | $194,429,000 |
| Monterey County, CA | 545 | $32,683,000 |
| Los Angeles County, CA | 285 | $16,488,000 |
| Alameda County, CA | 236 | $27,789,000 |
| San Francisco County, CA | 195 | $34,143,000 |
| San Mateo County, CA | 174 | $40,611,000 |
| San Diego County, CA | 154 | $14,137,000 |
| Contra Costa County, CA | 134 | $28,138,000 |
| Sacramento County, CA | 110 | $11,002,000 |
| Orange County, CA | 108 | $11,267,000 |
| County | Returns | AGI |
|---|---|---|
| Santa Clara County, CA | 869 | $93,953,000 |
| Monterey County, CA | 721 | $57,009,000 |
| Los Angeles County, CA | 288 | $19,415,000 |
| San Francisco County, CA | 244 | $22,706,000 |
| Alameda County, CA | 242 | $16,466,000 |
| San Diego County, CA | 220 | $15,673,000 |
| Sacramento County, CA | 136 | $8,635,000 |
| San Benito County, CA | 130 | $12,056,000 |
| Contra Costa County, CA | 121 | $15,202,000 |
| San Mateo County, CA | 119 | $16,439,000 |
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.