South Williamsport Post Office

About South Williamsport Post Office

USPS South Williamsport Post Office is located at 1223 W Southern Ave, Williamsport, PA 17702 - 9995.You can contact USPS South Williamsport Post Office on this at phone 570-323-7678.At South Williamsport Post Office , you can avail services like Call Referral , Duck Stamps , General Delivery , Global Express Guranteed , Label Broker , Money Orders (Domestic) , Money Orders (Inquiry) , Money Orders (International) , Pickup Accountable Mail , Pickup Hold Mail , Pickup Notice Left Mail , Priority Mail International , PO Box Online , etc.