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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: -32 tax returns · +7 people · +$3,171,000 AGI
| County | Returns | AGI |
|---|---|---|
| St. Clair County, IL | 218 | $14,392,000 |
| St. Louis County, MO | 124 | $10,363,000 |
| Randolph County, IL | 60 | $4,427,000 |
| St. Louis city, MO | 38 | $2,794,000 |
| Jefferson County, MO | 37 | $2,773,000 |
| Madison County, IL | 34 | $2,633,000 |
| County | Returns | AGI |
|---|---|---|
| St. Clair County, IL | 168 | $9,747,000 |
| St. Louis County, MO | 118 | $8,122,000 |
| Randolph County, IL | 52 | $2,744,000 |
| St. Louis city, MO | 39 | $2,797,000 |
| Jefferson County, MO | 36 | $2,132,000 |
| Madison County, IL | 34 | $1,748,000 |
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.