In September 2003 the high school was completely remodeled, with 155,000 square feet (14,400 m2) added to the building.

Along with this referendum, a new set of bleachers and press box were added to the West side of Inpro Field.

On the south side of Inpro Field there was a concession stand added with restrooms and the ticket booths.

Muskego High School competes as a member of the Wisconsin Interscholastic Athletic Association (WIAA) and are a part of the Classic 8 Conference.

In 2018 the Muskego High School Summer Baseball team, Girls Soccer, Girls Cross Country, Gymnastics, Pom Pom, and Football team won WIAA Division 1 State Championships.