List of US Post Office Stores in Mukwonago, WI Outlet Note Regular Brands US Post Office Wisconsin Mukwonago Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Mukwonago 911 Greenridge Ctr (262) 363-7741 People Also Viewed