My longtime pal Philip grabbed another couple columns of data for each state (and DC) and threw ’em into a Google Docs spreadsheet. You saw before that college degree penetration correlates almost perfectly with Democratic voting in this cycle; here’s what we found when we looked at high school diplomas and income.

Diplomas

Not as clear. The top ten states break 60/40 for the Democrats, but the bottom ten are 80% Republican.

Income

The top ten states by income break 90% for Democrats, and the bottom ten are all GOP.