There is 1 station I know of in MN that does e100 but it is crazy expensive and like 2 hours away from me. Otherwise e85 is everywhere around here, just on my drive home I probably pass 5 to 7 stations with e85. Most of them are e70+ from what I've seen, but there's only a couple that have e85/93 in one place, most are 91/e85.
EDIT: Minnoco Gas stations here also have Pump e30 there's lots of those around here too.
I stopped using Minnoco, it would've been sweet not to have to mix but it killed my OAR, now I just use the Holiday stations. It is top tier, albeit 91/e85, it keeps my OAR at -.96 and I have their monthly car wash to keep the rust away.
Where is the e100? I haven't ran across that one yet.