Interactive Map from the US Census Bureau Showing State-by-State Population Change Over a Century

Thanks to Joe Bish for this link.  See http://www.wral.com/news/national_world/national/flash/9193970/

A century of population change
WRAL.com
This interactive map from the US Census Bureau shows the state-by-state change over a century in population, density and Congressional representation. Population Density: Includes Puerto Rico and the District of Columbia in population density rankings.