If Mount Si High School is rebuilt to a 2,400 student capacity (see related story on new bond plans, student population), it could be the largest high school in the state. Only about 15 high schools have more than 2,000 students in grades 9 through 12, according to Office of the Superintendent of Public Instruction reports.

The largest, Chiawana High School in the Pasco School District, reported 2,239 in the past school year. Second was Kentridge High School in the Kent School District, 2,180, and third was Union High School, Evergreen School District, 2,176.

Two schools in the Issaquah School District, and two more in the Kent School District also reported 2013-14 enrollment of more than 2,000. They are:

Skyline High School, Issaquah: 2,015

Issaquah High School, Issaquah: 2,014

Kent-Meridian High School, Kent: 2,130

Kentwood High School, Kent: 2,010

Note: The above count includes both 9-12 and 10-12 senior high schools.