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Southern Indiana Athletic Conference
High School Athletic Conference in Indiana From Wikipedia, the free encyclopedia
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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. 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
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Member schools
Former members
- Linton played concurrently in the SIAC and West Central Conference 1944–45, and the SIAC and WIC 1945–51.
- Sullivan played in both the SIAC and West Central Conference 1944–45, and the SIAC and WIC 1945–62.
Membership timeline

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Conference championships
Football
Boys basketball
Boys cross country
Wrestling
Boys soccer
Boys tennis
Boys swimming
Baseball
Boys golf
Boys track and field
Volleyball
Girls basketball
Girls cross country
Girls soccer
Girls tennis
Girls swimming
Softball
Girls golf
Girls track and field
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State titles
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John H. Castle Knights
- Football (1982, 1994)
- Boys Soccer (2000)
- Girls Basketball (2006)
- Softball (2001)
Evansville Benjamin Bosse Bulldogs
- Boys Basketball (1943, 1944, 1962)
Evansville Central Bears
None
Evansville William Henry Harrison Warriors
- Girls Golf (1989)
- Boys Golf (2012)
Evansville Mater Dei Wildcats
- Baseball (1999)
- Boys Basketball (2004)
- Girls Basketball (2012, 2013)
- Football (2001, 2022)
- Wrestling (1986, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2006, 2007, 2021)
- Softball (2016)
- Girls Soccer (2017, 2018, 2019)
Evansville North Huskies
- Baseball (1962*)
- Boys Basketball (1967)
- Boys Golf (2000)
- Girls Golf (2014, 2015, 2016, 2018, 2020, 2021)
* = indicates title won before IHSAA State Tournament was initiated
Evansville Francis Joseph Reitz Panthers
- Girls Basketball (1981)
- Football (1933*, 1940*, 1948*, 1953*, 1956*, 1957*, 1960*, 1961*, 1971*, 2007, 2009)
- Bowling (2012+)
* = indicates title won before IHSAA State Tournament was initiated
+ = indicates title sanctioned by the Indiana High School Bowling Association
Evansville Reitz Memorial Tigers
- Baseball (1978, 1989, 1993)
- Football (1937*, 1958*, 2017, 2019)
- Girls Soccer (1989*, 1997, 2008, 2013, 2017, 2021, 2022)
- Softball (2002)
- Girls Tennis (1991, 1993, 1994, 1995, 1996, 2012)
- Boys Soccer (1979*, 1980*, 1981*, 1983*, 1984*, 1986*, 1988*, 1989*, 1990*, 1992*, 2007, 2008, 2016, 2017, 2019, 2020)
- Girls Basketball (2011)
* = indicates title won before IHSAA State Tournament was initiated
Jasper Wildcats
- 1949 Boys' Basketball
- 1996 Baseball
- 1997 Baseball
- 1998 Baseball (3A)
- 1999 Boys' Tennis
- 2000 Baseball (3A)
- 2001 Football (4A)
- 2006 Baseball (3A)
- 2021 Baseball (4A)
- 2025 Girls’ Tennis
Vincennes Lincoln Alices
- 1923 Boys' Basketball
- 1981 Boys' Basketball
- 2002 Baseball (3A)
Neighboring conferences
See also
References
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