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Wednesday, September 05, 2007

The IRS, GIS and Florida's Population Migration

If you've ever wondered where all the new residents in Florida are coming from or where your neighbors are moving to, the IRS may hold the answer. I recently read a post about a GIS Population Migration Mapping App that addresses this very question.

The full mapping application was completed at a national level and was developed by staff at the Charlotte Observer and the Fort Worth Star-Telegram.

For the record, "the map displays county-to-county migration data for 2000-2005 from the U.S. Internal Revenue Service. The IRS estimates are based on year-to-year changes of address on U.S. tax returns. All figures include only include people listed as exemptions on returns, so totals will be less than population. Because the IRS does not disclose small county flows because of privacy concerns, the county-to-county details will not add up to totals."