This School is no longer MSHSAA Member School. School Colors & Logos Pioneers Royal/White boys girls Social Media DuchesneHighSchool Duchesne_Athletics duchesnehs Membership Full Member High School, Grades 9-12 St. Charles County Board District: #7 St. Louis Contact Information 2550 Elm St. Charles, MO 63301-1494 (636) 946-6767 (636) 946-1219 fax Location 2550 Elm St. Charles, MO 63301-1494 (636) 946-6767 Get Directions