Post Office - Leonard 406 Railroad Ave S Leonard, ND 58052 Phone : (701) 645-2323 Post Office - Leonard Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (605) 357-4906 U S Government--postal Service 406 Railroad Ave S Leonard, ND 58052 Phone : (701) 645-2323 U S Government--postal Service Business Category Government Offices-Federal Government Offices & Public Schools