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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: +239 tax returns · +501 people · +$34,763,000 AGI
| County | Returns | AGI |
|---|---|---|
| Thurston County, WA | 319 | $21,609,000 |
| King County, WA | 218 | $21,876,000 |
| Pierce County, WA | 213 | $13,697,000 |
| Snohomish County, WA | 87 | $6,293,000 |
| Lewis County, WA | 78 | $3,865,000 |
| Mason County, WA | 74 | $3,947,000 |
| Pacific County, WA | 50 | $1,887,000 |
| Kitsap County, WA | 44 | $2,949,000 |
| Clark County, WA | 40 | $3,306,000 |
| Maricopa County, AZ | 36 | $2,773,000 |
| County | Returns | AGI |
|---|---|---|
| Thurston County, WA | 320 | $19,594,000 |
| King County, WA | 136 | $8,708,000 |
| Pierce County, WA | 116 | $8,217,000 |
| Mason County, WA | 84 | $4,153,000 |
| Lewis County, WA | 68 | $3,770,000 |
| Snohomish County, WA | 51 | $2,407,000 |
| Spokane County, WA | 44 | $2,313,000 |
| Pacific County, WA | 43 | $1,656,000 |
| Kitsap County, WA | 37 | $2,267,000 |
| Clark County, WA | 28 | $1,980,000 |
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.