Monday Map: Annual Income Lost/Gained due to Interstate Migration as a Percentage of State Income
December 12, 2011
This week’s map takes advantage of new migration data recently released by the IRS. It shows, for the year 2009, the net annual income of all migrants to and from each state to other states, as a percentage of that state’s aggregate income. (Foreign migration is deliberately excluded.) At the top of the list is Montana, where migrants, in a single year, brought with them a net income totaling more than 1% of the state’s entire annual income. At the bottom is Michigan, where migrants leaving the state took with them 0.43% of Michigan’s entire annual income.
This data partly comes from our interactive State-by-State Migration Calculator, which has just been updated with the most recent 2009-2010 migration data.
Click on the map to enlarge it.
Note: This map is similar to another recent Tax Foundation Monday Map, but it is different in two important ways: one, that the time period is one year, rather than ten years, and two, the measurement is a percentage of state income rather than the raw amount (which removes the bias towards large states dominating the list.)
Second Note: Last week I posted a map of effective tax rate by zip code and mentioned that I’d try to have a similar map this week that controls for income. I’m still trying out a variety of different methods, so that map has been pushed back.
View previous Monday maps here.
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