List of US Post Office Stores in Fountainville, PA Outlet Note Regular Brands US Post Office Pennsylvania Fountainville Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Fountainville 5045 Swamp Rd, #102 (215) 345-8415 People Also Viewed