Federal Data Hub › IRS Migration Flows · JSON

Stillwater County, MT

County-to-county migration · IRS SOI · filing years 2022-2023

Net migration: -30 tax returns · +26 people · +$1,365,000 AGI

Inflow
283 returns · 571 people · $21,763,000 AGI
Outflow
313 returns · 545 people · $20,398,000 AGI

Top origins (where new residents came from)

CountyReturnsAGI
Yellowstone County, MT91$6,566,000
Gallatin County, MT21$1,848,000

Top destinations (where leavers went)

CountyReturnsAGI
Yellowstone County, MT111$7,780,000

IRS migration data tracks where tax filers lived in consecutive years. A "return" is roughly a household; "AGI" is the adjusted gross income that moved with them. Net migration = inflow − outflow. Small county-pair flows are suppressed by the IRS for privacy and shown blank.

Source: IRS SOI Migration Data. License: CC0 1.0.