Craig, a part of the School District of Janesville, has a student enrollment of approximately 1,800.

Located on the east side of Janesville, it is named after Joseph A. Craig, who was instrumental in attracting the General Motors Janesville Assembly Plant to the city.

The original building, simply known as Janesville High School, was opened in 1955.

The school sports teams compete in the Big Eight Conference.

State level competition is governed by the Wisconsin Interscholastic Athletic Association (WIAA).