Mount Si High School

Mount Si High School

Public High School | Grade 9-12
8651 Meadowbrook Way SE,  Snoqualmie, WA
Snoqualmie Valley School District
3.6
3.6
2,172 Students
A-
Niche Grade

School Details

Head of School
John Belcher
Student Teacher Ratio
21:1
Average SAT Score
1270
Average ACT Score
29
Math Proficiency
59%
Reading Proficiency
90%
Average GPA
3.57
Graduation Rate
96%

Niche Grade

A-
Academics
B
Teachers
B+
College Prep
C+
Administration
B
Resources/Facilities
B+
Clubs and Activities
A
Sports
B+
Food
Source: Niche
Niche Grades

Niche grades and rankings are calculated using dozens of public data sets and millions of reviews. Niche data scientists and user researchers rigorously analyze data and user opinions to assess the key aspects of K-12 Schools, Colleges, and Places to Live. Every month, millions of students and families use the Niche grades and report cards to find the right school or neighborhood.

Niche Grade Details

Academics
Average GPA
3.57
Reading Proficiency
90%
Math Proficiency
59%
Teachers
Student Teacher Ratio
21:1
Teachers
101
Full Time Teachers
101
Teachers in First or Second Year
11.4%
College Prep
Average SAT
1270
Math
630
Verbal
640
Average ACT
29
Math
28
English
29
Reading
30
Science
29
Number of AP Courses
27
AP Pass Rate
79.8%
AP Math Enrollment
High
AP Science Enrollment
Very High
Other AP Enrollment
Very High
Clubs and Activities
Girls Athletic Participation
Low
Boys Athletic Participation
Average

GreatSchools Rating

Source: GreatSchools
GreatSchools Rating
The GreatSchools Rating helps parents compare schools within a state based on a variety of school quality indicators and provides a helpful picture of how effectively each school serves all of its students. Ratings are on a scale of 1 (below average) to 10 (above average) and can include test scores, college readiness, academic progress, advanced courses, equity, discipline and attendance data. We also advise parents to visit schools, consider other information on school performance and programs, and consider family needs as part of the school selection process.
View GreatSchools Rating Methodology

GreatSchools Rating Details

Test Scores

Math
14.1%
State Average
32.1%
Science
2.2%
State Average
25.1%
GreatSchools Test Scores Rating
GreatSchools
The Test Score Rating reflects annual state test results for this school compared with scores statewide.

Teachers and Staff

Students Per Counselor
414:1

Student Diversity

Male
52.7%
Female
46.9%
White
69.5%
Hispanic
11.5%
Asian
9.1%
Two or more races
7.8%
Black
1.2%
Native American
<1%

School Rankings

#19 Best HS For Athletes in Washington
Source: Niche

Specialty School Programs

AP Programs Offered
IB Programs Offered
Free/Reduced Lunch Offered
Athletics Program

Colleges Students are Considering

Students are most interested in or go on to attend these colleges.
University of Washington 691 Students
Washington State University 482 Students
Western Washington University 386 Students
Central Washington University 235 Students
Oregon State University 216 Students
Boise State University 201 Students
University of Oregon 179 Students
Montana State University 179 Students
University of California - Santa Barbara 156 Students
Seattle University 155 Students

What Students Want to Study

Niche users from this school are most interested in the following majors.
Business 310 Students
Psychology 197 Students
Computer Science 122 Students
Biology 113 Students
Nursing 94 Students
Marketing 92 Students
Pre-Medicine Studies 79 Students
Political Science and Government 70 Students
Engineering 66 Students
Mechanical Engineering 64 Students

This School’s Reviews

Niche Reviews
3.6 265 Reviews
4.0 Alum
1/21/2026
I loved going to Mount Si High school. Every day I would wake up excited and ready to go to school and pursue my education. I made such good friends at the school, teachers and fellow students. The food during lunch was amazing, the sandwich bar had this one Asian lady that would always ask how my day was and would always make the sandwich I would ask for.
4.0 Freshman
5/9/2025
I really love the school, academics, and teachers. All of the staff is really amazing and so kind, understanding, and supportive. You can take as many advanced classes as you want and feel comfortable with, and you are given all the materials you need to succeed. There are so many really nice people, but there's also some really cruel people though.
4.0 Junior
3/4/2025
Mount Si overall is a very involved school but it needs to have more activities that are advertised, most of the clubs aren't talked about as much as they should be.
GreatSchools Reviews
3.6 25 Reviews
5.0 other
12/29/2025
This is by far one of the most engaged school districts we have been a part of on all levels. I have found when students or parents obsess over on area, they need to take a little more accountability and have a bit of a reality check. Sports- if you aren't good enough, you won't be picked. If your c...
3.0 parent
4/13/2025
Special Education program is seriously lacking. Teachers, staff, principals don’t all understand how to work with children with autism/ADHD and can cause harm.School does not provide gifted programming for twice exceptional students. Students with IQs high enough for MENSA are not considered gifted...
4.0 student
5/14/2024
School with lots of opportunities for students, however not effective in providing special ed students with support/accommodations they needOtherwise great school
5.0 parent
1/17/2022
Both my kids attended Mount Si. They both participated in sports, took several AP courses and both graduated with honors. Most of their teachers were great and the kids were able to work to their own level of ability. They were both prepared for college (one graduated, one still in) and I'm so glad...

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Mount Si High School is a public school for students in grades 9-12 in Snoqualmie, WA, in the Snoqualmie neighborhood, and is served by the Snoqualmie Valley School District in Washington. Annual tuition is $0. The school has a total enrollment of 2,172 and maintains a student-teacher ratio of 21:1. Academic records show that 59% of students achieve proficiency in math, and 90% are proficient in reading. Mount Si High School has received feedback and ratings, with a Niche grade of A- and a GreatSchools Rating of 10 out of 10. The average GPA is 3.57, the graduation rate is 96%, and average standardized test scores include an SAT score of 1270 and an ACT score of 29. The average home value in this area is $1,206,249. Discover additional schools in the area, like Two Rivers School, Snoqualmie Middle School, Snoqualmie Elementary School, and more. Learn more about what Snoqualmie has to offer, and browse homes for sale and for rent near Mount Si High School.

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