Homes in the
Huntley HS district.

Huntley High School's current building on Harmony Road opened in 1997 as Consolidated School District 158's first new building in roughly thirty years. It was originally laid out as a combined middle-high school, with a shared cafeteria and library at the center, then expanded as the area boomed: a classroom wing in 1999, major east and west additions in 2002 that added a larger gym and a 700-seat performing arts center, and a 2005 reallocation to high-school-only use once the district's new middle schools opened. The teams were the Huntley Redskins until 2002, when the district retired that name and adopted the Red Raiders.

Huntley is the single comprehensive high school for all of District 158, with an attendance area that covers Huntley plus parts of Lake in the Hills, Algonquin, and the surrounding rural areas. Serving roughly 2,800 students in grades 9-12, it has historically tested above Illinois state averages on state assessments.

Huntley moved up from the small-school Big Northern Conference to the larger suburban Fox Valley Conference in 2002 as its enrollment crossed 1,000. The Red Raiders' biggest moment came in 2019, when the softball team beat St. Charles East for the IHSA Class 4A state title, the first state championship in school history. The girls track and field team added a Class 3A state team title in 2023, and the school's journalism program won back-to-back IHSA state championships in 2021 and 2022.