Post Offices in Mankato, Minnesota, United States SearchSearch SearchSearch View: Grid 1View: Grid 2View: Grid 3View: Grid 4View: Grid 5View: List Madison East Post Office No Reviews Favorite Phone: (507) 625-6831Retail Hours Mankato Post Office No Reviews Favorite Phone: (507) 625-6587Retail Hours Mankato 2 Post Office No Reviews Favorite Phone: (507) 625-2320Retail Hours