Col. Zadok Magruder HS www.montgomeryschoolsmd.org/schools/magruderhs/ 5939 Muncaster Mill Road Rockville, MD 20855 39.13139000000002 -77.11861000000002 Col. Zadok Magruder HS5939 Muncaster Mill RoadRockville,MD 20855 Phone: 240-740-5550 Fax: 301-840-4617 Mr. Christopher (Chris) J.Ascienzo, Principal (Acting) Staff Directory