Migration + Wealth Flow Explorer

PennsylvaniaKing County, WA

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

Households moved

849

People moved

1,052

Reported AGI moved

$95.17M

Avg. AGI per migrating return

$112,097

Avg. household size

1.24

Reported county-pair flows

9

County-by-county breakdown

OriginDestinationHouseholdsPeopleReported AGI
Allegheny County, PAKing County, WA273326$31.56M
Philadelphia County, PAKing County, WA279340$29.17M
Montgomery County, PAKing County, WA81102$9.49M
Chester County, PAKing County, WA6585$7.82M
Bucks County, PAKing County, WA3848$5.59M
Centre County, PAKing County, WA3237$3.50M
Dauphin County, PAKing County, WA2231$3.48M
Delaware County, PAKing County, WA3450$3.04M
Lancaster County, PAKing County, WA2533$1.52M

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.”