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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: -988 tax returns · -1,126 people · $-75,871,000 AGI
| County | Returns | AGI |
|---|---|---|
| San Joaquin County, CA | 1,879 | $107,720,000 |
| Merced County, CA | 1,110 | $63,977,000 |
| Santa Clara County, CA | 792 | $55,651,000 |
| Alameda County, CA | 767 | $63,745,000 |
| Sacramento County, CA | 303 | $17,406,000 |
| Contra Costa County, CA | 258 | $18,960,000 |
| Los Angeles County, CA | 255 | $13,277,000 |
| Fresno County, CA | 216 | $8,549,000 |
| San Mateo County, CA | 203 | $14,223,000 |
| Tuolumne County, CA | 136 | $7,915,000 |
| County | Returns | AGI |
|---|---|---|
| San Joaquin County, CA | 1,560 | $107,321,000 |
| Merced County, CA | 972 | $48,325,000 |
| Alameda County, CA | 495 | $33,149,000 |
| Santa Clara County, CA | 459 | $24,930,000 |
| Sacramento County, CA | 449 | $24,512,000 |
| Los Angeles County, CA | 260 | $12,495,000 |
| San Diego County, CA | 214 | $12,091,000 |
| Fresno County, CA | 209 | $9,785,000 |
| Contra Costa County, CA | 193 | $13,659,000 |
| Tuolumne County, CA | 158 | $9,109,000 |
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.