Potomac Senior High School, which serves the nearby incorporated town of Dumfries was established in 1981.

Originally the campus was located at 15941 Cardinal Drive (Woodbridge address), what is now the Dr. A. J. Ferlazzo Building.

A year and a half later the current school was opened up and the freshmen and sophomores moved there during the Christmas break.

In the 2017-2018 school year, Potomac's student body was: VHSL Record Book The Pride of Potomac Marching Panthers is a 17 year Virginia Honor Band, and is affiliated with the Virginia Band and Orchestra Director's Association, or VBODA.

Potomac Senior High School hosts the Cambridge Program for Mathematics and Physical Sciences which is an international curriculum offering broad and balanced study for academically able students.