Northern State Conference

The Northern State Conference (currently known as the Indiana Northern State Conference) is a high school athletic conference in Indiana that had previously disbanded in 2015, before being revived in 2024.

In 2013, Culver and Knox announced that they would be leaving the conference after the 2014–2015 school year in order to join the Hoosier North Athletic Conference with three schools from the Midwest Conference and Independent North Judson. LaVille and Triton decided to join the HNAC at the same time. The remaining four schools joined the Northern Indiana Athletic Conference, ending the conference at the time.

This conference was later revived in 2024 as the Indiana Northern State Conference; including 5 schools from the previous iteration of the conference (Bremen, Jimtown, John Glenn, Knox, and LaVille) and adding Tippecanoe Valley of the Three Rivers Conference.