The Great Lakes Athletic Conference is a four-member IHSAA-sanctioned conference located entirely within Lake County. The conference is among the youngest in the state, created in 2007 following the disbandment of the Lake Athletic Conference and after failing to find acceptance in another conference for each of the four schools. The GLAC's "sister" conferences also created from the Lake Athletic Conference are the Greater South Shore Athletic Conference and the Northwest Crossroads Conference. At the start of the 2021–2022 school year, the conference lost two members as Hammond Clark and Hammond Gavit were closed due to the consolidation of Hammond Schools.
Membership SchoolTown Team name Colors Enrollment 24–25 IHSAA Class IHSAA Class Football Year joined Previous conference East Chicago CentralEast Chicago, Indiana Cardinals 1009 3A 4A 2016 Independents(ILSC 1987) Gary West SideGary, Indiana Cougars 995 3A 4A 2018 Independents(NWC 2014) Hammond CentralHammond, Indiana Wildcats 1923 4A 5A 2007 Lake Hammond MortonHammond, Indiana Governors 1534 4A 5A 2007 Lake
State champions
Hammond High School Wildcats (17) 1905 Boys Track & Field 1906 Boys Track & Field 1935 Wrestling 1936 Wrestling 1936 Boys Swimming & Diving 1937 Wrestling 1938 Boys Track & Field 1939 Boys Track & Field 1940 Boys Swimming & Diving 1941 Boys Swimming & Diving 1942 Boys Swimming & Diving 1943 Boys Swimming & Diving 1951 Boys Swimming & Diving 1952 Boys Swimming & Diving 1954 Boys Swimming & Diving 1962 Wrestling 1963 Wrestling
Hammond Clark Pioneers (1) 1938 Wrestling
Hammond Morton Governors (1) 1965 Football
Resources IHSAA Conferences IHSAA Directory Northern Indiana Football History IHSAA State Champions IHSAA Classification IHSAA Football Classification