Mount Si High School is a Public School in with 2,061 students, ranking it #18 in enrollments out of 655 Washington High Schools.
The 90 teachers at Mount Si High School teach grades 9 through 12 and are responsible for 22.83 students on average, receiving a C+ grade in student-teacher ratio.
Based on several factors like math and ELA proficiency, diversity, and student-teacher ratio, Mount Si High School receives a rating of C+.