Sumter High School is a co-educational four-year public high school serving grades 9 through 12 in Sumter School District located in the south side of Sumter, South Carolina, United States. With an enrollment of approximately 2,400 students, Sumter High is the second-largest high school in the Midlands of South Carolina and the fifth largest in the state of South Carolina. In 2004 Sumter High School was designated The Model School for SC and one of thirty model schools nationwide by a national organization funded by the Bill and Melinda Gates Foundation.