Gallatin County, MT → King County, WA
Reported tax-filing households, individuals, and adjusted gross income that moved from Gallatin County, MT to King County, WA, 2022–2023.
Households moved
117
People moved
149
Reported AGI moved
$8.99M
Avg. AGI per migrating return
$76,846
Avg. household size
1.27
Reported county-pair flows
1
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.”