Monroe High School offers 22 sports for students to participate in, 19 compete under the Wisconsin Interscholastic Athletic Association (WIAA) and Monroe High School is a charter member of the Badger Conference. 

The WIAA implemented football-only conference in 2019.  Monroe was moved out of the Badger Conference and entered the Rock Valley Conference.  Due to COVID-19, the first season we completed in the football-only conference (Rock Valley) was in the Spring of 2020.

The 2023-2024 school year, was the first school year Monroe competed in the Rock Valley Conference for all sports except Girls Swimming and Boys Hockey as the Rock Valley Conference does not offer those sports.  Girls Swimming and Boys Hockey will remain in the Badger Conference.