Robert Ramsey, who describes himself a student in the Geographical Information Sciences, sends this map of Minnesota Congresswoman Michele Bachmann's Tea Party Caucus.
I think part of what makes Texas and Florida, in particular, look like so heavily Tea Party is that they're population centers with large congressional delegations. But part of it is that are also more heavily Tea Party -- at least in terms of elected officials. For comparison, check out this map of Tea Party membership last year from Patch Work Nation.
(And do keep sending stuff, please. It's fun to get and it helps a ton.)