2024-25 Boys Basketball Divisions
^ Denotes moved up due to success in tournament factor
* Denotes opted out of CIAC Tournament eligibility
Boys Division I (16 Schools)
| Schools |
| Conard |
| Danbury |
| East Catholic |
| Fairfield Prep |
| Holy Cross |
| Kolbe Cathedral |
| Northwest Catholic |
| Notre Dame Prep |
| Notre Dame-West Haven |
| Ridgefield |
| St. Bernard |
| Stamford |
| Staples |
| WCA |
| Wilbur Cross |
| Windsor |
Boys Division II (36 Schools)
| Schools |
| Bloomfield |
| Bristol Central |
| Cheney Tech |
| Crosby |
| Daniel Hand |
| East Hartford |
| Enfield |
| Fairfield Warde |
| Farmington |
| Glastonbury |
| Greenwich |
| Guilford |
| Hall |
| Hamden |
| Hillhouse |
| Innovation |
| Kennedy |
| Lewis Mills |
| Manchester |
| Middletown |
| Naugatuck |
| New Britain |
| New London |
| Newtown |
| NFA |
| Norwalk |
| Platt |
| RHAM |
| SMSA |
| Southington |
| Trumbull |
| West Haven |
| Westhill |
| Wilby |
| Wilton |
| Xavier |
Boys Division III (40 Schools)
| Schools |
| Amistad |
| Amity |
| Ansonia |
| Bassick |
| Berlin |
| Bethel |
| Branford |
| Brien McMahon |
| Bristol Eastern |
| Brookfield |
| Bunnell |
| Cheshire |
| Darien |
| East Haven |
| East Lyme |
| Fairfield Ludlowe |
| Fitch |
| Foran |
| Harding |
| Immaculate |
| Jonathan Law |
| Killingly |
| Maloney |
| Masuk |
| New Canaan |
| Newington |
| North Haven |
| Pomperaug |
| Seymour |
| Shelton |
| Simsbury |
| South Windsor |
| St. Joseph |
| St. Paul Catholic |
| Stratford |
| Torrington |
| Waterford |
| Weaver |
| Weston |
| Windham |
Boys Division IV (39 Schools)
| Schools |
| Abbott Tech |
| Aerospace |
| Avon |
| Bridgeport Central |
| Canton |
| Capital Prep |
| Career Magnet |
| Cromwell |
| E.O. Smith |
| Ellington |
| Goodwin Tech |
| Granby Memorial |
| Griswold |
| Joel Barlow |
| Lakeview |
| Ledyard |
| Lyman Hall |
| Morgan |
| New Fairfield |
| New Milford |
| Nonnewaug |
| Northwestern |
| Plainville |
| Platt Tech |
| Prince Tech |
| Rockville |
| Sheehan |
| Somers |
| Stonington |
| Suffield |
| Tolland |
| Wethersfield |
| Whitney Tech |
| Windham Tech |
| Windsor Locks |
| Wolcott |
| Wolcott Tech |
| Woodland |
| Woodstock Academy |
Boys Division V (49 Schools)
| Schools |
| Achievement First |
| Bacon Academy |
| Bolton |
| Bulkeley |
| Bullard Havens Tech |
| Classical Magnet |
| Coginchaug |
| Comp Sci |
| Coventry |
| Derby |
| East Granby |
| East Hampton |
| East Windsor |
| Ellis Tech |
| Gilbert |
| Grasso Tech |
| Haddam Killingworth |
| Hale Ray |
| Hartford Public |
| HMTCA |
| Housatonic Regional |
| International |
| Kaynor Tech |
| Lyman Memorial |
| Montville |
| North Branford |
| Norwich Tech |
| O'Brien Tech |
| Old Lyme |
| Old Saybrook |
| Oxford |
| Parish Hill |
| Plainfield |
| Portland |
| Putnam |
| Rocky Hill |
| Shepaug Valley |
| Stafford |
| Terryville |
| Thomaston |
| Tourtellotte |
| University |
| Valley Regional |
| Vinal Tech |
| Watertown |
| Westbrook |
| Wheeler |
| Wilcox Tech |
| Wright Tech |