ANNUAL LEAGUE CHAMPION
| SCHOOL YEAR | GIRLS BASKETBALL CONFERENCE CHAMPION |
| 1973-74 | Western |
| 1974-75 | Michigan Center |
| 1975-76 | Northwest |
| 1976-77 | Columbia Central |
| 1977-78 | Grass Lake, Michigan Center |
| 1978-79 | Columbia Central |
| 1979-80 | Hanover-Horton |
| 1980-81 | Hanover-Horton |
| 1981-82 | Columbia Central |
| 1982-83 | Grass Lake |
| 1983-84 | Grass Lake |
| 1984-85 | Grass Lake |
| 1985-86 | Grass Lake |
| 1986-87 | Grass Lake |
| 1987-88 | Grass Lake |
| 1988-89 | Addison |
| 1989-90 | Michigan Center |
| 1990-91 | Michigan Center |
| 1991-92 | East Jackson, Michigan Center |
| 1992-93 | East Jackson |
| 1993-94 | Grass Lake |
| 1994-95 | Addison |
| 1995-96 | Addison |
| 1996-97 | Addison |
| 1997-98 | Addison |
| 1998-99 | Michigan Center |
| 1999-00 | Michigan Center |
| 2000-01 | Hanover-Horton |
| 2001-02 | Napoleon |
| 2002-03 | Michigan Center |
| 2003-04 | Michigan Center |
| 2004-05 | Michigan Center |
| 2005-06 | Michigan Center |
| 2006-07 | Michigan Center |
| 2007-08 | Napoleon |
| 2008-09 | Napoleon |
| 2009-10 | Napoleon |
| 2010-11 | Michigan Center |
| 2011-12 | Grass Lake, Manchester |
| 2012-13 | Manchester |
| 2013-14 | East Jackson |
| 2014-15 | Manchester |
| 2015-16 | Napoleon |
| 2016-17 | Grass Lake |
| 2017-18 | Grass Lake |
| 2018-19 | Grass Lake |
| 2019-20 | Grass Lake & Michigan Center |
ALL-TIME LEAGUE STANDINGS (LEAGUE GAMES ONLY)
| SCHOOL | W | L | G | PCT | TITLES |
| Northwest | 20 | 4 | 24 | 0.833 | 1 |
| Michigan Center | 460 | 154 | 614 | 0.749 | 14 |
| Columbia Central | 73 | 33 | 106 | 0.689 | 3 |
| Parma Western | 14 | 10 | 24 | 0.583 | 2 |
| Grass Lake | 335 | 255 | 590 | 0.568 | 13 |
| Addison | 242 | 206 | 448 | 0.540 | 5 |
| Napoleon | 304 | 309 | 613 | 0.496 | 5 |
| Manchester | 249 | 259 | 508 | 0.490 | 3 |
| East Jackson | 260 | 341 | 601 | 0.433 | 3 |
| Hanover-Horton | 239 | 351 | 590 | 0.405 | 3 |
| Vandercook Lake | 171 | 443 | 614 | 0.279 | 0 |
LEAGUE CHAMPIONSHIPS
| Addison (5): 1988, 1994, 1995, 1996, 1997 |
| Columbia Central (3): 1976, 1978, 1981 |
| East Jackson (3): 1991t, 1992, 2013-14 |
| Grass Lake (13): 1977t, 1982, 1983, 1984, 1985, 1986, 1987, 1993, 2011-12t, 2016-17, 2017-18, 2018-19, 2019-20t |
| Hanover-Horton (3): 1979, 1980, 2000 |
| Manchester (3): 2011-12t, 2012-13, 2014-15 |
| Michigan Center (14): 1974, 1977t, 1989, 1990, 1991t, 1998, 1999, 2002, 2003, 2004, 2005, 2006, 2010-11, 2019-20t |
| Napoleon (5): 2001, 2007-08, 2008-09, 2009-10, 2015-16 |
| Northwest (1): 1975 |
| Parma Western (2): 1973, 1975 |
