Notes on county migration
Seven short articles built on the IRS figures: how to read them, who gains and loses, how far people move, how the balance changed over four filing years, and what movers report in income.
- Reading IRS migration data: returns, people and the 20-return rule
What the IRS county migration figures count, why a return is not a person, and how the 20-return rule shapes every county list.
- The counties gaining the most residents from moves
Which US counties gained the most tax filers through moves in 2022–23, by rate and in absolute numbers, and which lost the most.
- Where people leaving the biggest US counties go
Top destinations for households leaving the ten largest US counties, how many leave the state and how far they go, from IRS data.
- How far people move when they change counties
Distances of US county-to-county moves among tax filers: how many stay within 50 or 100 miles, and which counties draw movers from farthest away.
- How county migration changed from 2019–20 to 2022–23
Four filing years of IRS migration data: which counties and states swung from losses to gains, and where earlier gains slowed down.
- Income of movers: do arrivals report more than leavers?
Average adjusted gross income per return for households moving into and out of US counties and states, from IRS migration data.
- State-to-state moves: who gains from whom
The largest state-to-state migration flows and net balances among US tax filers in 2022–23, from IRS data: California to Texas, New York to Florida.