Does anyone have any good resources on creating a county by county map like that? I've tried to find a good one to use, hopefully to output some data I've play

Does anyone have any good resources on creating a county by county map like that? I've tried to find a good one to use, hopefully to output some data I've played with in python, but I can't seem to find any good resources. Note to HN: There is so much information out there now. Lets see more people playing with it ;)