List of US Post Office Stores in Greer, SC Outlet Note Regular Brands US Post Office South Carolina Greer Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Greer 500 Aviation Pkwy (864) 989-0788 US Post Office outlet - Greer 419 The Pkwy (864) 877-6423 US Post Office outlet - Greer 504 Pennsylvania Ave (864) 877-6423 People Also Viewed