Margaret Salisbury was the first graduate of the high school, which expanded into a full four-year curriculum in 1898 but still shared space with other grades.

A separate high school building was built in 1902, but the growing city's student population quickly outgrew the facility and required the use of several portable classrooms.

[5] Everett High School is part of District One of the Washington Interscholastic Activities Association (WIAA) as a member of the Wesco 3A conference.

The football team, led by coach Enoch Bagshaw, achieved a perfect season that year;[note 1] it was capped off on January 1, 1921, with a 16–7 defeat of East Technical High School from Cleveland, Ohio, at Athletic Field in Everett, now the site of Bagshaw Field at North Middle School.

After the season, Bagshaw left to coach for the Washington Huskies football team, leading them to their first Rose Bowl appearance in 1923.