The New Secessionists

This is mentioned in the article but worth emphasising: the graphic shows is coloured by the proportion of the local population that supports secession, not by absolute numbers. Therefore, a state that is coloured mostly pink still may have very little absolute support, assuming that they're mostly rural areas.

In fact, since rural counties tend to be physical larger, I'm not convinced a map like this is the best way to present the data anyway, since it could be misleading.