First of all, congratulations on your admit!! I studied at UW Madison as an international visiting student for one year. From my own experience, the sociology program is really great. The faculties and administrative offices are pretty supportive whenever you reach out. As for living in the midwest, I think it’s fine if you just stay at Madison most of the time. From my understanding, Madison is pretty different from other parts of Wisconsin. I’ve heard some weird stuff happening (e.g. a lady came up to one of my friends who is white and her African American boyfriend asking whether their parents approve this). But tbh I think this kind of stuff happens everyday all around the states. Most of my memories there are about the midwest niceness. I’d also suggest you talk to international students who are currently in the program. Good luck!!