Mountlake Terrace HS is known for its Jazz Band and basketball program, which has won the Wesco Championship eight times.

Mountlake Terrace HS participates in the Washington Interscholastic Activities Association, having reclassified from 3A to 2A at the start of 2016–2017 school year.

[4] The school offers engineering and robotics classes for college and university level credit if an AP exam is taken.

The Mountlake Terrace Theatre Department is a well-recognized program at the local, regional, state, and national levels.

[10][11] The Technology Student Association (TSA) club at Mountlake Terrace HS boasts the largest highschool chapter in the state of Washington.

[13] Source:[14] The high school opened on September 6, 1960, to serve the growing community of Mountlake Terrace, with an initial enrollment of 500 students.