List of US Post Office Stores in Newtown Square, PA Outlet Note Regular Brands US Post Office Pennsylvania Newtown Square Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Newtown Square 3576 West Chester Pike (610) 353-4896 US Post Office outlet - Newtown Square 20 N Newtown Street Rd, #1 (610) 325-9368 US Post Office outlet - Newtown Square 5044 West Chester Pike (610) 325-7961 People Also Viewed