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Grundy County, IA

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

Net migration: -39 tax returns · -17 people · $-431,000 AGI

Inflow
285 returns · 512 people · $17,707,000 AGI
Outflow
324 returns · 529 people · $18,138,000 AGI

Top origins (where new residents came from)

CountyReturnsAGI
Black Hawk County, IA91$6,053,000
Marshall County, IA29$2,188,000
Hardin County, IA25$1,399,000
Tama County, IA21$1,005,000
Butler County, IA20$1,394,000

Top destinations (where leavers went)

CountyReturnsAGI
Black Hawk County, IA113$6,322,000
Marshall County, IA24$1,220,000

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.