Automated Postal Center - Gresham 103 W Powell Blvd Gresham, OR 97030 Phone : (503) 665-2663 Business Category Automated Postal Centers Toll-Free           (800) ASK-USPS Fax           (503) 669-6516 Post Office - Gresham 103 W Powell Blvd Gresham, OR 97030 Phone : (503) 665-2663 Post Office - Gresham Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (503) 669-6516