Wahpeton City Of--city Hall, Assessor Wahpeton, ND 58075 Phone : (701) 642-8449 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools Wahpeton City Assessor 1900 4th St N Wahpeton, ND 58075 Phone : (701) 642-8449 Business Category Government Offices-City Village & Twp Government Offices State & Local Public Finance Taxation & Monetary Policy Government Offices & Public Schools