South Umpqua High SchoolSouth Umpqua High School is a public high school in Myrtle Creek, Oregon, United States.WWW susd.k12.or.us/schools/su...AcademicsIn 2008, 68% of the school's seniors received their high school diploma. Of 129 students, 88 graduated, 31 withdrew, 6 received a modified diploma, and 4 continued to attend high school.