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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: -1,395 tax returns · -4,504 people · $-275,648,000 AGI
| County | Returns | AGI |
|---|---|---|
| St. Louis County, MO | 5,157 | $239,505,000 |
| St. Charles County, MO | 559 | $30,412,000 |
| St. Clair County, IL | 387 | $17,341,000 |
| Jefferson County, MO | 351 | $17,201,000 |
| Madison County, IL | 295 | $14,103,000 |
| Cook County, IL | 269 | $20,318,000 |
| Boone County, MO | 128 | $6,595,000 |
| Los Angeles County, CA | 90 | $7,816,000 |
| Jackson County, MO | 89 | $4,971,000 |
| Franklin County, MO | 84 | $4,068,000 |
| County | Returns | AGI |
|---|---|---|
| St. Louis County, MO | 6,585 | $413,392,000 |
| St. Charles County, MO | 602 | $39,850,000 |
| Jefferson County, MO | 508 | $28,820,000 |
| St. Clair County, IL | 411 | $24,152,000 |
| Cook County, IL | 313 | $26,988,000 |
| Madison County, IL | 273 | $15,231,000 |
| Harris County, TX | 119 | $7,235,000 |
| Los Angeles County, CA | 113 | $8,345,000 |
| Jackson County, MO | 103 | $6,201,000 |
| King County, WA | 102 | $9,083,000 |
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.