Number of coffeeneurs by state:
DC is the epicenter for coffeeneuring and it is small relative to the rest of the country so here is a detailed look at it:
Cities with coffeeneurs and links to the blogs, if they have one (a blog is not required to finish but they are fun to read):
And here are the coffeeneuring stops (big red points are 2015 and purple are from 2014):
How these maps are made.