By Jon Bruner | Forbes
Bruner’s interactive visualization, based on IRS data, illustrates inward and outward migration for every U.S. county. Each move had its own motivations, but in aggregate they reflect the geographical marketplace during the boom and bust of the last decade: Migrants flock to Las Vegas in 2005 in search of cheap, luxurious housing, then flee in 2009 as the city’s economy collapses; Miami beckons retirees from the North but offers little to its working-age residents, who leave for the West. Even fast-growing boomtowns like Charlotte, N.C., lose residents to their outlying counties as the demand for exurban tract-housing pushes workers ever outward.
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Last year I participated in WNYC’s ‘Map Your Moves‘ data visualization challenge, rendering a very similar map of migration patterns.