Chicago, Los Angeles, New York, and San Francisco are among the major U.S. metro areas to experience a net loss of migration between 2004 and 2010, according to a February 2012 report  by the Urban Institute that studied migration from urban center to urban center.
Using IRS data that tracks year-to-year address changes on individual income tax returns, the group studied the nation's 100 largest metro areas. Of that group, 40 metros saw a net loss in migration between 2004-10, including six of the nation's 10 largest cities. Most of the areas to experience a net loss were based in either the Northeast, Rust Belt, or California, according to The Atlantic Cities , which summarized the report.
Other trends include:
For more on the report, including an interactive map that breaks down urban migration trends within the nation's largest metros, visit: http://tinyurl.com/urban-migration .