The Colonial Athletic Association is celebrating its 25th year of operation during the 2009-10 season. It is a Division I conference comprising 12 schools on the East Coast. Formerly, it was just a southern conference, when it was founded in 1983 as the ECAC South, but it assumed its current name in 1985.

The league currently has 12 members for men's basketball ranging from Georgia to Massachusetts. Drexel, Hofstra, Delaware and Townson were added in 2001 with Georgia State and Northwestern joining in 2005. The conference sponsors 21 sports, although most of the focus is on men's basketball. The top highlight in 25-year history of the league came in 2006, when George Mason reached the Final Four of the NCAA men's basketball tournament. The Patriot upset two-time national champion Connecticut, 86-84, in overtime in the regional finals to become the first CAA team to reach the national semifinals. George Mason also was the first mid-major school to reach the Final Four since the NCAA expanded the tournament to 64 teams in 1985. The CAA conducts a postseason men's basketball tournament and the winner receives an automatic bid to the NCAA Tournament. Virginia Commonweath is the defending champion.

• Delaware Blue Hens
• Drexel Dragons
• George Mason Patriots
• Georgia State Panthers
• Hofstra Pride
• James Madison Dukes
• Northeastern Huskies
• Old Dominion Monarchs
• Towson Tigers
• UNC at Wilmington Seahawks
• VCU Rams
• William & Mary Pride

It was founded in 1983 as the ECAC South basketball league, then assumed its current name in `1985. Towson University, Drexel University, Hofstra University and the University of Delaware were added as members in 2001. Four years later, Georgia State and Northeastern joined the conference. Former member are the United States Naval Academy, University of Richmond, East Carolina University and American University.

George Mason became the first CAA team to reach the Final Four in 2006. Virginia Commonwealth is the defending league champion.

• 2009: [[Virginia Commonwealth Rams Men's Basketball| Official site
• 2008: George Mason<ref name="Media Guide"> Official site: CAA Past Champions
• 2007: VCU Official site: CAA Past Champions
• 2006: UNC Wilmington Official site: CAA Past Champions
• 2005: Old Dominion Official site: CAA Past Champions
• 2004: VCU Official site: CAA Past Champions
• 2003: UNC Wilmington Official site: CAA Past Champions
• 2002: UNC Wilmington Official site: CAA Past Champions
• 2001: George Mason Official site: CAA Past Champions
• 2000: UNC Wilmington Official site: CAA Past Champions
• 1999: George Mason Official site: CAA Past Champions
• 1998: Richmond Official site: CAA Past Champions
• 1997: Old Dominion Official site: CAA Past Champions
• 1996: VCU Official site: CAA Past Champions
• 1995: Old Dominion Official site: CAA Past Champions
• 1994: James Madison Official site: CAA Past Champions
• 1993: East Carolina Official site: CAA Past Champions
• 1992: Old Dominion Official site: CAA Past Champions
• 1991: Richmond Official site: CAA Past Champions
• 1990: Richmond Official site: CAA Past Champions
• 1989: George Mason Official site: CAA Past Champions