Southern Indiana Athletic Conference

Southern Indiana Athletic Conference
Founded1936
No. of teams6 Class 4A, 3 Class 3A, and 1 Class 2A
Region4 Counties: Dubois, Knox, Vanderburgh, and Warrick, Indiana
Locations
Current Southern Indiana Athletic Conference Members are in Gold inside Dubois, Knox, Vanderburgh and Warrick Counties. Former members are in pink inside Maroon Counties. The Pink dot in Vanderburgh County is Rex Mundi High School. Other former members in Dubois and Knox Counties are also pink.Current Southern Indiana Athletic Conference Members are in Gold inside Dubois, Knox, Vanderburgh and Warrick Counties. Former members are in pink inside Maroon Counties. The Pink dot in Vanderburgh County is Rex Mundi High School. Other former members in Dubois and Knox Counties are also pink.

The Southern Indiana Athletic Conference (SIAC) is a high school athletic conference based in Evansville, Indiana. Five of the conferences 10 schools; Bosse, Central, Harrison, North, and Reitz; comprise the public Evansville Vanderburgh School Corporation. Mater Dei and Memorial are private Catholic high schools run by the Roman Catholic Diocese of Evansville, and the largest member is Castle, a public school located in neighboring Newburgh in Warrick County under the Warrick County School Corporation. The league was founded in 1936, and at one point stretched far across southern and western Indiana: from Mount Vernon in the west to New Albany in the east, and from Evansville in the south to Terre Haute in the north. Jasper and Vincennes Lincoln announced in May 2019 that they would leave the disbanding Big Eight Conference to rejoin the Southern Indiana Athletic Conference beginning with the 2020–21 season.