The four-divisional format will be used for the following team sports: boys and girls cross country, boys and girls soccer, boys and girls basketball, boys and girls indoor and outdoor track, golf, baseball, softball, and girls volleyball.

Hammonasset
Foran, Guilford, Daniel Hand, Hillhouse, Jonathan Law

Housatonic
Amity, Cheshire, Lyman Hall, Shelton, Sheehan

Quinnipiac
Hamden, Xavier, Mercy, Notre Dame, Sacred Heart, Fairfield Prep, West Haven

Oronoque
Branford, Career, East Haven, North Haven, Wilbur Cross

* Note: Hillhouse/Career have a co-op team in boys soccer and compete in the Hammonasset Division.

The divisional structure for ice hockey is:

Division I
Amity, Cheshire, East Haven, Fairfield Prep, Hamden, North Haven, Notre Dame, West Haven, Xavier

Division II

Branford, Guilford, Hand, Lyman Hall, Milford, Sheehan

The divisional structure for wrestling is:

Division A
Amity, Cheshire, Hand, Law, Xavier

Division B
Fairfield Prep, Guilford, Shelton, Branford, East Haven, Foran, New Haven

The following sports have no divisional structure (but are scheduled using a tier-system) and compete as one conference in  field hockey, gymnastics, boys and girls lacrosse, girls and boys swimming and tennis.