Interactive graphic by Christopher Ingraham. More at wonkviz.tumblr.com.
Source: American Community Survey 2012.
Last week this graphic of migration flows by Chris Walker made the rounds. Many commenters noted how beautiful the graphic is, and rightly so.
I always have a bit of a hard time parsing exactly what's going on within these Circos-style visualizations. Walker's graphic allows you to hover over a given state to highlight only those migrations, which helps quite a bit.
I thought there might be a better way to display these data, but I wasn't right. I stuck with a map, drawing circles for each state sized by net migration (comings minus goings) and colored according to whether the state gained or lost residents overall. To get at individual state fl