Federal Data Hub › IRS Migration Flows · JSON

Hill County, MT

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

Net migration: +4 tax returns · -82 people · $-1,314,000 AGI

Inflow
342 returns · 558 people · $16,356,000 AGI
Outflow
338 returns · 640 people · $17,670,000 AGI

Top origins (where new residents came from)

CountyReturnsAGI
Cascade County, MT37$1,205,000
Blaine County, MT32$834,000

Top destinations (where leavers went)

CountyReturnsAGI
Cascade County, MT46$2,468,000
Yellowstone County, MT21$1,183,000
Chouteau County, MT21$754,000
Blaine County, MT20$811,000

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.