Automated Postal Center - Port Wing 83320 Washington Ave Port Wing, WI 54865 Phone : (715) 774-3615 Business Category Automated Postal Centers Toll-Free           (800) ASK-USPS Post Office - Port Wing 83320 Washington Ave Port Wing, WI 54865 Phone : (715) 774-3615 Post Office - Port Wing Business Category Post Offices Government Offices & Public Schools Toll-Free           (800) ASK-USPS