Migration + Wealth Flow Explorer

San Diego County, CAMontana

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

Households moved

258

People moved

434

Reported AGI moved

$32.04M

Avg. AGI per migrating return

$124,174

Avg. household size

1.68

Reported county-pair flows

5

County-by-county breakdown

OriginDestinationHouseholdsPeopleReported AGI
San Diego County, CAGallatin County, MT65106$9.86M
San Diego County, CAFlathead County, MT70126$9.79M
San Diego County, CARavalli County, MT3150$5.53M
San Diego County, CAMissoula County, MT4667$4.00M
San Diego County, CAYellowstone County, MT4685$2.86M

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.”