 Many of these districts serve students who live on the outer edges of Sioux Falls city limits, and serve thousands of metro-area students.The Sioux Falls School District has signed an agreement that will allow it to participate in an athletic conference known as the Metro Conference.Sioux Falls Lincoln, Washington, Roosevelt, O'Gorman and Brandon Valley High Schools will compete in this conference, potentially with other suburban districts, to help cut costs and increase competition between schools in the Sioux Falls Metro Area.