Downers Grove South High School, or DGS, and locally referred to as "South", is a public four-year high school located at the corner of Dunham Road and 63rd Street in Downers Grove, Illinois, a western suburb of Chicago, Illinois, in the United States. Its principal is Arwen Lyp. It is part of Community High School District 99, which also includes Downers Grove North High School. The South campus draws students from Downers Grove (south of 55th St.), the majority of Woodridge, half of Darien (west of Cass Ave.), and small sections of Bolingbrook and Westmont. From Wikipedia