Southern Indiana Athletic Conference


The Southern Indiana Athletic Conference 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 [High School (Indiana)|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. Vincennes Lincoln announced in January 2025, that it will depart the SIAC for the Western Indiana Conference after the 2025–26 season, citing lack of ability to compete with the Evansville schools, setting off a possible search for a replacement which may involve schools like Heritage Hills and Gibson Southern of the Pocket Athletic Conference

Member schools

Former members

  1. Linton played concurrently in the SIAC and West Central Conference 1944–45, and the SIAC and WIC 1945–51.
  2. Sullivan played in both the SIAC and West Central Conference 1944–45, and the SIAC and WIC 1945–62.

Membership timeline


DateFormat = yyyy
ImageSize = width:750 height:auto barincrement:22.5
Period = from:1935 till:2035
TimeAxis = orientation:horizontal
PlotArea = right:30 left:0 bottom:50 top:5
Colors = id:barcolor value:rgb
id:line value:black
id:bg value:white
PlotData=
width:15 textcolor:black shift: anchor:from fontsize:s
bar:1 color:red from:1935 till:1963 text:Bicknell
bar:2 color:red from:1935 till:1964 text:Bloomington
bar:3 color:red from:1935 till:end text:Evansville Bosse
bar:4 color:red from:1935 till:end text:Evansville Central
bar:5 color:red from:1935 till:end text:Evansville F.J. Reitz
bar:6 color:red from:1935 till:1951 text:Linton
bar:7 color:red from:1935 till:1978 text:New Albany
bar:8 color:red from:1935 till:1980 text:Princeton
bar:9 color:red from:1935 till:1962 text:Sullivan
bar:10 color:red from:1935 till:1980 text:Vincennes Lincoln
bar:10 color:red from:2020 till:end text:Vincennes Lincoln
bar:11 color:red from:1936 till:1980 text:Washington
bar:12 color:red from:1941 till:1980 text:Boonville
bar:13 color:red from:1942 till:1973 text:Bedford
bar:14 color:red from:1942 till:1970 text:Huntingburg
bar:15 color:red from:1947 till:end text:Reitz Memorial
bar:16 color:red from:1953 till:1980 text:Jasper
bar:16 color:red from:2020 till:end text:Jasper
bar:17 color:red from:1953 till:1980 text:Tell City
bar:18 color:red from:1954 till:end text:Mater Dei
bar:19 color:red from:1958 till:end text:Evansville North
bar:20 color:red from:1959 till:1980 text:Mount Vernon
bar:21 color:red from:1961 till:1972 text:Evansville Rex Mundi
bar:22 color:red from:1963 till:end text:Evansville Harrison
bar:23 color:red from:1963 till:1968 text:North Knox
bar:24 color:red from:1964 till:end text:Castle
bar:25 color:red from:1971 till:1982 text:Terre Haute North
bar:26 color:red from:1971 till:1982 text:Terre Haute South]
ScaleMajor = gridcolor:line unit:year increment:5 start:1935
TextData =
fontsize:L
textcolor:black
pos: # tabs:
text:"SIAC Membership History"

Conference championships

Baseball

Girls swimming

State titles

John H. Castle Knights

  • Football
  • Boys Soccer
  • Girls Basketball
  • Softball

Evansville Benjamin Bosse Bulldogs

  • Boys Basketball

Evansville Central Bears

None

Evansville William Henry Harrison Warriors

  • Girls Golf
  • Boys Golf

Evansville Mater Dei Wildcats

Evansville North Huskies

  • Baseball
  • Boys Basketball
  • Boys Golf
  • Girls Golf
''* = indicates title won before IHSAA State Tournament was initiated''

Evansville Francis Joseph Reitz Panthers

  • Girls Basketball
  • Football
  • Bowling
* = indicates title won before IHSAA State Tournament was initiated

+ = indicates title sanctioned by the 'Indiana High School Bowling Association'''''

Evansville Reitz Memorial Tigers

  • Baseball
  • Football
  • Girls Soccer
  • Softball
  • Girls Tennis
  • Boys Soccer
  • Girls Basketball
''* = indicates title won before IHSAA State Tournament was initiated''

Jasper Wildcats

  • 1949 Boys' Basketball
  • 1996 Baseball
  • 1997 Baseball
  • 1998 Baseball
  • 1999 Boys' Tennis
  • 2000 Baseball
  • 2001 Football
  • 2006 Baseball
  • 2021 Baseball
  • 2025 Girls’ Tennis

Vincennes Lincoln Alices

  • 1923 Boys' Basketball
  • 1981 Boys' Basketball
  • 2002 Baseball

Neighboring conferences