Federal Data Hub › IRS Migration Flows · JSON

Park County, MT

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

Net migration: +97 tax returns · +216 people · +$38,186,000 AGI

Inflow
778 returns · 1,243 people · $84,437,000 AGI
Outflow
681 returns · 1,027 people · $46,251,000 AGI

Top origins (where new residents came from)

CountyReturnsAGI
Gallatin County, MT184$37,917,000
Yellowstone County, MT26$1,535,000

Top destinations (where leavers went)

CountyReturnsAGI
Gallatin County, MT155$11,465,000
Yellowstone County, MT22$1,592,000
Missoula County, MT22$1,054,000

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.