List of US Post Office Stores in Hillsboro, OR Outlet Note Regular Brands US Post Office Oregon Hillsboro Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Hillsboro 3685 Nw Aloclek Pl (800) 275-8777 US Post Office outlet - Hillsboro 1330 Sw Walnut St (503) 615-2825 US Post Office outlet - Hillsboro 5333 W Baseline Rd (503) 601-3522 People Also Viewed