The Indiana High School Football Conference was an Indiana High School Athletic Association (IHSAA)-sanctioned conference founded in 1926 by 10 members. The founding members were:
Elwood
Evansville Central
Fort Wayne South
Gary Emerson
Indianapolis Tech
Mishawaka
Muncie
Richmond Morton
South Bend Central
Terre Haute Gerstmeyer
7 teams withdrew Fort Wayne South (1926); Terre Haute Gerstmeyer (1926); Mishawaka (1927); Richmond (1927); Gary Emerson (1928); South Bend Central (1928); New Castle (1930).
Added (12): Linton-Stockton (1926); Marion (1926); Clinton (1928); Logansport (1928); Bicknell (1929); Kokomo (1929); Bloomington (1930); Brazil (1930); New Castle (1930); Wabash (1930); Sullivan (1931); Vincennes Lincoln (1931).
The conference ended in 1931 and the final members were (15):