For the 1970-71 school year, West Senior operated as a four-year high school (grades 9-12), with West Junior grades 7 and 8 attending Parkway South Junior High School on a split schedule.

Members of the class of 1974 attended school in the West Senior building for five straight years.

One of the unusual features of PWHS was that for 13 years, under the leadership of principal Al Burr, it operated without any written rules or regulations—only mutual agreements and expectations.

[4] For the 2013–2014 school year, the school offered 28 activities approved by the Missouri State High School Activities Association (MSHSAA): baseball, boys' and girls' basketball, sideline cheerleading, boys' and girls' cross country, dance team, field hockey, 11-man football, boys' and girls' golf, girls' lacrosse, music activities, scholar bowl, boys' and girls' soccer, softball, speech and debate, boys' and girls' swimming and diving, boys' and girls' tennis, boys' and girls' track and field, boys' and girls' volleyball, water polo and wrestling.

[5] Parkway West students have won several state championships, including: