There are definitely more in Ann Arbor than elsewhere but its still a small minority, and like I said if the building is UM expect masks (The Big House and Chrysler Arena dont require them.). I spend a lot of time in Dexter, which is more or less Ann Arbor, and though it is full of woke idiots (a once beautiful small community destroyed by liberal trash) you dont see many masks.

I dont see many at all in Ypsi or Belleville. Get out of Washtenaw into Lenawee and theres almost none. Maybe a few in Adrian, another college town. (I have work in Tecumseh, Adrian and Clinton.)