There are 19 teams, divided into four divisions, that compete in SCC baseball. The following divisions will be in effect for the 2025 season.

Hammonasset:  Guilford, Hamden, Fairfield Prep, East Haven
Housatonic: Amity Regional, Xavier, Sheehan, Foran, Hillhouse/Career co-op
Oronoque: Notre Dame, North Haven, Shelton, Cheshire, Branford 
Quinnipiac: Daniel Hand, Lyman Hall, Jonathan Law, West Haven, Wilbur Cross