Bozeman is not a county. There are 46 precincts in Gallatin county, and near as I can tell, Bozeman is made of up 5 of those 46 precincts. Bozeman is Liberal. You have the Montana State University campus that practically is the size of Bozeman. Bozeman is comprised of college liberal students, and educators and very little else. If the campus didn't exist there, Bozeman wouldn't amount to much.
I've lived in Bozeman. It's just Seattle at a smaller scale.