[1] Edmond North High School (previously Edmond North Mid-High serving ninth & tenth grades only) became a four-year high school on May 2, 1993 by adding, respectively, eleventh and then twelfth grades.

The rapid growth of the community in the early and mid-1990s prompted the decision to increase the number of high schools in the district.

This allowed for expansion of the school's main building as well as the size and variety of available classes.

[citation needed] Community expansion continued through the '90s and into the 2000s, prompting Edmond North to further expand the main building.

Additional portable classrooms were added, more parking became available, and a track, full size football field and tennis courts were also added.