The numbers behind the maps and stories in "Valley on the Move"
come from a Sunday Gazette-Mail computer analysis of Internal Revenue
In addition to collecting taxes from citizens, the IRS keeps
track of the county and state where taxpayers and their dependents say
they live, and where they move. The IRS does not release
data on any individual taxpayer, only the total numbers of people
This IRSmigrationdata also tracks the average
income of the taxpayers who leave or come into a county, called the median
adjusted gross income, and the sum earning power of all those people,
called the aggregate adjusted gross income.
The IRSdata does not count all people. Not everybody