Post Office - Mapleton 651 2nd St Mapleton, ND 58059 Phone : (701) 282-3754 Post Office - Mapleton Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (605) 357-4906 United States Government--postal Service, Mapleton Community Building Nd West Fargo, ND 58078 Phone : (701) 282-3754 Business Category Government Offices-Federal Government Offices & Public Schools