Parkway West High School is a member of the Missouri State High School Activities Association (MSHSAA) and the St. Louis Suburban League.

Affton	Normandy
Clayton	Northwest
Eureka	Oakville
Fox	Parkway Central
Hazelwood Central	Parkway North
Hazelwood East	Parkway South
Hazelwood West	Parkway West
Jennings	Pattonville
Kirkwood	Ritenour
Ladue	Riverview Gardens
Lafayette	Rockwood Summit
Lindbergh	Seckman
Marquette	STEAM
McCluer	University City
McCluer North	Webster Groves
Mehlville