An interesting interactive chart from the New York Times showing migration patterns in the United States:

Taken individually, each state tells its own story, and each makes for fascinating reading. As a follow-up, here is the big picture: a map showing all of the states at a given time.

Each shape represents where the people living in a state were born. Within a state, larger shapes mean a group makes up a larger share of the population.

For map enthusiasts out there — you know who you are — this is a new kind of chart we are calling a Voronoi treemap map, based on the work of two visualization researchers, Michael Balzer and Oliver Deussen.

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Map: The wealthiest member of Congress in each state

"Millionaires make up only a small percentage of Americans, but their ranks are much thicker on Capitol Hill, where 35 percent of Congress’ members have a disclosed net worth of at least — at least! — $1 million. (Perhaps this is one reason Congress is more sensitive to the concerns of the affluent?)

But the range of congressional riches is vast. This map shows the wealthiest member of Congress from each state’s delegation, according to CQ Roll Call’s Wealth of Congress lis.”

Via Vox