IRS Migration


Source U.S. Internal Revenue Service
File Size 666 MB (all years, all tables)
Dates Covered 1992-93 to 2007-08
Cost Snapshot

  • Nonmembers $225
  • Members $75
Categories: ,


The decennial census provides all sorts of interesting morsels that can be passed on to readers, viewers, or listeners. But there is one item the census does not cover: where the people in your community are coming from and where are they moving to. With the IRS migration data, you can track movement in and out of counties. Moreover, financial information in the data allows you to gauge whether your community is gaining or losing wealth. This data – which is processed through a cooperative agreement between the IRS and the Census Bureau – makes a perfect complement to other census data. The Census Bureau compiles the dataset by matching the Social Security number of the primary taxpayer from one year to the next. If the address for that taxpayer changes, they are considered migrants.

Record layouts and samples of this database

Main documentation (readme.txt) 14.2 KB
Schema (migration.pdf) 164.3 KB
Sample Data, County inflows table (inflow0607.xls) 40.0 KB
Sample Data, County outflows table (outflow0607.xls) 40.0 KB
Record Layout, Full database (reclay9508.txt) 1.9 KB

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