Passport Application Services - Wahpeton 926 2nd Ave N Wahpeton, ND 58075 Phone : (701) 642-2347 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Fax           (701) 642-2326 Post Office - Wahpeton 926 2nd Ave N Wahpeton, ND 58075 Phone : (701) 642-2347 Post Office - Wahpeton Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (701) 642-2326