Maryland → King County, WA
Reported tax-filing households, individuals, and adjusted gross income that moved from Maryland to King County, WA, 2022–2023.
Households moved
640
People moved
851
Reported AGI moved
$64.46M
Avg. AGI per migrating return
$100,713
Avg. household size
1.33
Reported county-pair flows
7
County-by-county breakdown
| Origin | Destination | Households | People | Reported AGI |
|---|---|---|---|---|
| Montgomery County, MD | King County, WA | 228 | 316 | $26.81M |
| Baltimore city, MD | King County, WA | 118 | 142 | $9.45M |
| Baltimore County, MD | King County, WA | 74 | 104 | $7.50M |
| Prince George's County, MD | King County, WA | 90 | 116 | $7.38M |
| Howard County, MD | King County, WA | 57 | 78 | $7.23M |
| Anne Arundel County, MD | King County, WA | 52 | 65 | $4.52M |
| Frederick County, MD | King County, WA | 21 | 30 | $1.58M |
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.”