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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: -45 tax returns · -3 people · $-500,000 AGI
| County | Returns | AGI |
|---|---|---|
| Story County, IA | 30 | $1,698,000 |
| Polk County, IA | 28 | $1,293,000 |
| Hamilton County, IA | 24 | $1,479,000 |
| Franklin County, IA | 23 | $958,000 |
| County | Returns | AGI |
|---|---|---|
| Story County, IA | 52 | $2,128,000 |
| Polk County, IA | 43 | $2,446,000 |
| Black Hawk County, IA | 30 | $1,302,000 |
| Franklin County, IA | 28 | $1,311,000 |
| Grundy County, IA | 25 | $1,399,000 |
| Marshall County, IA | 23 | $696,000 |
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.