I cannot remember where but I read that the number of bitcoin ATM's doubled last year compared to the previous. I guess BTC is widely used in those areas. The question here is, have you checked or asked people in your area if they know about BTC and if they are willing to use it?
Exactly my sentiment, you can't put an ATM in the middle of nowhere and expect it to be profitable, but it is anything but a saturated niche.
OP doesn't seem interested in sharing his location though.