Electoral Vote Changes in Future Elections

This is how the electoral map of the United States will change by 2030 and 2060 according to population projections. I used state-by-state population projections1 and then calculated vote apportionment2 to determine what the electoral map would look like. The map below shows which states will gain or lose votes.

Display the electoral map of:

electoral votes

Electoral vote changes

Hover over the map to the left to see details.
This visualization was created by @RaviSParikh using d3.js.