But I do have one wish for Sioux Falls: To bring back Dunkin' and open a local shop in town. Dunkin' has announced they are opening a second South Dakota location that's only about 50 minutes south of Sioux Falls. University of South Dakota University of South DakotaThe plan is to open the Vermillion Dunkin' inside the Muenster University Center, which is the Student Union building. This would be the closest Dunkin' shop near Sioux Falls. It's at a local rest stop about an hour and a half away from Sioux Falls.