List of US Post Office Stores in Newark, DE Outlet Note Regular Brands US Post Office Delaware Newark Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Newark 110 E Main St (302) 368-3833 US Post Office outlet - Newark 401 Ogletown Rd (302) 737-5771 US Post Office outlet - Newark 1 Polly Drummond Shopping Ctr (800) 275-8777 People Also Viewed