List of US Post Office Stores in Prairie du Chien, WI Outlet Note Regular Brands US Post Office Wisconsin Prairie du Chien Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Prairie du Chien 120 S Beaumont Rd (608) 326-6914 People Also Viewed