Cook County, IL → Montana
Reported tax-filing households, individuals, and adjusted gross income that moved from Cook County, IL to Montana, 2022–2023.
Households moved
84
People moved
116
Reported AGI moved
$10.45M
Avg. AGI per migrating return
$124,381
Avg. household size
1.38
Reported county-pair flows
3
County-by-county breakdown
| Origin | Destination | Households | People | Reported AGI |
|---|---|---|---|---|
| Cook County, IL | Gallatin County, MT | 43 | 65 | $6.59M |
| Cook County, IL | Flathead County, MT | 20 | 29 | $2.52M |
| Cook County, IL | Missoula County, MT | 21 | 22 | $1.34M |
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.”