Migration + Wealth Flow Explorer

King County, WAIsland County, WA

Reported tax-filing households, individuals, and adjusted gross income that moved from King County, WA to Island County, WA, 2022–2023.

Households moved

508

People moved

822

Reported AGI moved

$92.41M

Avg. AGI per migrating return

$181,906

Avg. household size

1.62

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.”