Lakewood High School (commonly known as Lakewood or LHS) is a public secondary school in what was Arlington, but annexed to become an addition of Marysville, Washington, serving students in grades 9–12.

A $66.8 million bond measure was passed in April 2014 to design and build a new high school on the same campus, with a capacity of 825 students.

[4] The Lakewood Cougars compete in the 2A Northwest Conference.

[5] Sports offered: Baseball, Basketball, Cheer, Cross Country, Football, Golf, Soccer, Tennis, Track & Field, Volleyball, Wrestling.

[6] Lakewood has won 4 WIAA state titles:[7] Kataka Corn (2018), Actor and Musician