The New York Times has published an interesting series of maps of the United States showing where the residents of each state were born. It shows the percentage of natives of each state, along with the other states where people were born and also the percentage of residents who were born outside the U.S. Within a state, larger shapes mean a group makes up a larger share of the population. The map shows data from 1900, 1950, and 2012.
Those born in Louisiana must really enjoy living there as 79% of the Louisiana residents of 2012 were also born there. Only 36% of the Floridians are native born, which should surprise no one.