List of US Post Office Stores in Uxbridge, MA Outlet Note Regular Brands US Post Office Massachusetts Uxbridge Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Uxbridge 298 N Main St (508) 278-7203 US Post Office outlet - Uxbridge 287 Millville Rd (508) 278-6834 US Post Office outlet - Uxbridge 278 N Main St (508) 278-7203 People Also Viewed