The following 17 schools will participate in boys lacrosse in two divisions in 2025.

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

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