List of US Post Office Stores in St Simons Island, GA Outlet Note Regular Brands US Post Office Georgia St Simons Island Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - St Simons Island 1705 Frederica Rd (912) 638-3621 People Also Viewed