Doesn't surprise me. The lack of coffee shops, that is. Active LDS should't drink coffee, Rexburg is predominantly LDS.
I live in Idaho Falls, not too far from there, and there are a lot of LDS in this area too. However, I think we have a lot more coffee shops here, than Rexburg does.
My suspicion (well founded) is that there are a lot of LDS members, that buy coffee all of the time. Otherwise, these coffee shops would go out of business.
I've tried to drink it in the past, but for some weird reason, it puts me to sleep 30 minutes later. So, I stick to my Pepsi.
MOO
LOL. Yes. IF even has a Dutch Bros which is my SIL's favorite coffee place. We (in a mysterious town a little south of you and about the same size) aren't lucky enough to have them here.
And I understood why Rexburg doesn't have as many Starbucks as a town of the same size in either of the states to Idaho's west, for example, would have. I also understand why, unlike virtually every other college town in the world, they don't appear to have a bar where I could go out dancing and buy a beer. (I think IF has one or two of those.)