Daily Kos, a digital media platform focused on American politics, has created a dataset tracking population redistribution in congressional districts. State policymakers redraw the boundaries of legislative districts every ten years after a census count. This redistricting process results in some voters receiving new representation in state legislatures and the federal government. The dataset contains population counts for old and new congressional districts, corresponding percentages of how many voters in a new district came from an old district, and each district’s current congressional representative.
Image credit: Flickr user Brian Cantoni