The Southern Illinois River to River Athletic Conference was established in 1993-94. Since then, Congrats to the (29) following conference teams for winning an IHSA State Team Championship:

2021-22, Nashville Hornets-Bketball (B)
2018-19, DuQuoin Indians-Track (G)
2017-18, Massac County Patriots-Golf (G)
2015-16, Carterville Lions-Softball
2014-15, Nashville Hornettes-Softball
2013-14, Nashville Hornettes-Golf (G)
2012-13, Harrisburg Bulldogs-Bketball (B)
2012-13, Massac County Patriots-Golf (G)
2012-13, Nashville Hornettes-Bketball (G)
2011-12, Nashville Hornettes-Golf (G)
2009-10, Herrin Tigers-Track (B)
2009-10, Massac County Patriots-Golf (G)
2007-08, Benton Rangerettes-Track (G)
2007-08, Carterville Lions-Softball
2007-08, Herrin Tigers-Track (B)
2006-07, Herrin Tigers-Track (B)
2006-07, Massac County Patriots-Golf (B)
2006-07, Massac County Patriots-Golf (G)
2005-06, Benton Rangerettes-Track (G)
2003-04, Harrisburg Bulldogs-Baseball
2003-04, Sparta Bulldogs-Track (B)
2000-01, Harrisburg Bulldogs-Football
2000-01, Harrisburg Bulldogs-Track (B)
2000-01, Nashville Hornettes-Softball
2000-01, Pinckneyville Panthers-Bketball (B)
1998-99, Harrisburg Bulldogs-Track (B)
1997-98, Nashville Hornets-Basketball (B)
1994-95, Harrisburg Bulldogs-Track (B)
1993-94, Pinckneyville Panthers-Bketball (B)