Baseball - 1990, 1993, 1995, 1996, 1997, 1998, 2002, 2006, 2009, 2010
Boys basketball - 1997, 1998
Girls basketball - 1990, 1993, 1994, 1995, 1996
Boys cross country - 1990, 1991, 1992, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
Girls cross country - 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009
Football - 1989, 1990, 1991, 1992, 1993, 1994, 1998, 2001, 2009
Boys golf - 1997, 2000, 2001
Girls golf - 1990, 1991, 1992, 1993, 1995, 1998, 2000
Gymnastics - 1990, 1991, 1992, 1993, 1995, 2009
Hockey
Boys soccer - 1995, 1998, 1999, 2000, 2001, 2008
Girls soccer
Softball - 1990, 1995, 1996, 2000, 2001, 2002, 2003, 2008, 2010
Boys tennis - 1990, 1991, 1992, 1995, 1996, 1997, 2002, 2003, 2004, 2005
Girls tennis - 1989, 1990, 1993, 1994, 1995, 1996, 2003, 2004, 2005, 2007
Boys track and field - 1992, 1993, 2001, 2010
Girls track and field - 1990, 1994, 1995, 2000, 2001, 2003, 2004, 2005, 2010
Volleyball - 1989, 1994
Wrestling - 1990, 1995, 2002, 2003
126 total championships in 17 sports
*Central and Onalaska are tied for having won conference championships in 17 of the 19 sports