The following 17 schools participate in boys lacrosse in two divisions.

Division I (7)
Fairfield Prep, Guilford, Daniel Hand, Xavier, Cheshire, Notre Dame, Amity Regional

Division II (10)
Branford/East Haven co-op, Hamden, Foran, North Haven, Sheehan, Shelton, Lyman Hall, West Haven, Jonathan Law, Wilbur Cross