As older Rust Belt city with an older population, deaths in Pittsburgh have far outweighed the number of births since 2000, a key factor to the city's population decline, according to Mark Mather of the Population Reference Bureau.
And older residents are moving out of the city to areas that are warmer and friendlier to retirees. Though the recession has recently forced some of Pittsburgh's residents to stay put until an economic rebound, the city's net population loss has been 76,000 since the last census tally.
* Pittsburgh stands to give up some of the $3.2 billion in federal funds it received in 2008.
* Pennsylvania may lose one of its 19 seats in Congress.
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