St. Clair County, IL → Missouri
Reported tax-filing households, individuals, and adjusted gross income that moved from St. Clair County, IL to Missouri, 2022–2023.
Households moved
1,309
People moved
2,173
Reported AGI moved
$69.76M
Avg. AGI per migrating return
$53,293
Avg. household size
1.66
Reported county-pair flows
6
County-by-county breakdown
| Origin | Destination | Households | People | Reported AGI |
|---|---|---|---|---|
| St. Clair County, IL | St. Louis County, MO | 626 | 1,093 | $34.63M |
| St. Clair County, IL | St. Louis city, MO | 387 | 579 | $17.34M |
| St. Clair County, IL | St. Charles County, MO | 121 | 208 | $8.42M |
| St. Clair County, IL | Jefferson County, MO | 126 | 215 | $7.50M |
| St. Clair County, IL | Franklin County, MO | 20 | 42 | $1.18M |
| St. Clair County, IL | Boone County, MO | 29 | 36 | $691.0K |
IRS migration data does not represent every U.S. resident (non-filers are underrepresented), a mailing address does not always equal a physical residence, and AGI reflects Year 2 tax returns without proving income was earned after arrival. Use “income moved” or “reported AGI moved,” not “economic impact created.”