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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: +1,395 tax returns · +784 people · +$248,717,000 AGI
| County | Returns | AGI |
|---|---|---|
| King County, WA | 10,534 | $1,347,460,000 |
| Pierce County, WA | 637 | $41,275,000 |
| Skagit County, WA | 607 | $40,855,000 |
| Whatcom County, WA | 470 | $27,397,000 |
| Island County, WA | 462 | $32,310,000 |
| Los Angeles County, CA | 376 | $27,471,000 |
| Maricopa County, AZ | 354 | $26,510,000 |
| San Diego County, CA | 257 | $18,879,000 |
| Kitsap County, WA | 245 | $17,920,000 |
| Spokane County, WA | 230 | $16,790,000 |
| County | Returns | AGI |
|---|---|---|
| King County, WA | 7,334 | $710,322,000 |
| Pierce County, WA | 808 | $61,600,000 |
| Skagit County, WA | 706 | $55,877,000 |
| Maricopa County, AZ | 624 | $70,942,000 |
| Island County, WA | 527 | $57,420,000 |
| Whatcom County, WA | 514 | $33,606,000 |
| Spokane County, WA | 346 | $25,410,000 |
| Kitsap County, WA | 324 | $26,262,000 |
| Thurston County, WA | 268 | $20,587,000 |
| Los Angeles County, CA | 268 | $22,222,000 |
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.