Federal Data Hub › IRS Migration Flows · JSON

Costilla County, CO

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

Net migration: +48 tax returns · +85 people · +$1,878,000 AGI

Inflow
135 returns · 240 people · $5,661,000 AGI
Outflow
87 returns · 155 people · $3,783,000 AGI

Top origins (where new residents came from)

CountyReturnsAGI
Alamosa County, CO22$707,000

Top destinations (where leavers went)

CountyReturnsAGI
Alamosa County, CO21$612,000

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.