As of the most recently completed 2025–26 basketball season, 366 men's college basketball programs competed in the National Collegiate Athletic Association's Division I. This number includes programs transitioning from a lower NCAA division, all from Division II, and Saint Francis (PA), transitioning to Division III. For the 2026–27 season, one school became a full Division I member, having completed its transition from Division II, while another school started a transition from Division II.
Each program employs a head coach. As of the 2026–27 season, the longest-tenured head coach is Greg Kampe, who has been head coach at Oakland since 1984. However, Kampe does not have the longest tenure at the Division I level because Oakland played in NCAA Division II before the 1997–98 season. The longest tenure at the D-I level is that of Tom Izzo of Michigan State, who has coached the Spartans since 1995–96.
Conference affiliations reflect those in place for the 2026–27 college basketball season.