Migration + Wealth Flow Explorer

Los Angeles County, CASan Mateo County, CA

Reported tax-filing households, individuals, and adjusted gross income that moved from Los Angeles County, CA to San Mateo County, CA, 2022–2023.

Households moved

977

People moved

1,347

Reported AGI moved

$139.43M

Avg. AGI per migrating return

$142,708

Avg. household size

1.38

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.”