If that’s the case it’ll be prioritized to health care workers and the ultra rich first and powerful politicians of course.
I would expect large urban areas as well, to include the ultra rich and the ultra poor. Based on both my economic status and geography, I expect I'll be one of the last people to get it. :)
The Boise metro actually has more large, advanced hospitals than I've seen in many even much more populous areas, so they would likely have the infrastructure to accept storage, and may already have some of the medical freezers, but it will do no good if there is no vaccine for them to store and distribute.
Apparently the vaccine also is only viable at refrigerator temperatures for 48 hours, so there is also going to be some logistical planning involved to ensure thawing/distribution are well-planned to avoid losing undoubtedly tight quantities of the vaccine.