Very Good
#571 of 2,225 schools in WA
Top 26% in state
Mount Si High School
High School · Snoqualmie Valley School District
8651 MEADOWBROOK WAY SE, Snoqualmie, WA 98065
Enrollment
2,172
Student-Teacher
21.7:1
Score
7.5
Grades
9th – 12th
Enrollment
2,172
Student-Teacher
21.7:1
Score
7.5
Grades
9th – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Snoqualmie
#4 of 5
public schools
Washington high schools
#57 of 476
In district
#8 of 12
Snoqualmie Valley School District
Equity
9.3 / 10
Exceptional
About Mount Si High School
Mount Si High School serves 2,172 students in grades 9 through 12 in Snoqualmie, Washington, with a student-teacher ratio of 21.7:1 and 100 full-time equivalent teachers. This regular public school has earned strong recognition, ranking #225 out of 2,261 schools statewide, placing it in the 90th percentile of Washington high schools with a MySchoolScout rating of 7.6 out of 10. The school demonstrates impressive academic performance with an academic score of 9.8 out of 10.
Students excel particularly in English Language Arts and Reading, with 89% achieving proficient or above levels across grade levels. This strong academic showing reflects the commitment of both the school community and its students. Mount Si High School is situated in an affluent community where 65% of residents hold bachelor's degrees or higher, and the median household income reaches $175,750.
The surrounding neighborhood in ZIP code 98065 features a median home value of $815,100 and maintains an exceptionally low poverty rate of just 0.4% among its 15,960 residents. The school operates in a town setting on the fringe of an urban area, providing students with both suburban tranquility and access to metropolitan opportunities.
What Parents Should Know
Mount Si High School is a large school with 2,172 students enrolled. Larger schools typically offer a wider range of academic programs, electives, and extracurricular activities. Parents may want to ask about how the school maintains a sense of community and ensures students don't get lost in the crowd.
The student-teacher ratio at Mount Si High School is 21.7:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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Mount Si High School — Students at Mount Si High School score 73% proficient, which is above what's typical for similar communities (expected: 68%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
12.8%
Students qualifying for federal meal assistance
Test Scores WA SBA (2023-24)
Based on 9 test records from WA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
Source: EdFacts (NCES) and state assessment data. Growth score: 7.5/10.
How Mount Si High School Compares
See how Mount Si High School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 70% (2019) to 57.5% (2024). Reading/ELA proficiency has remained stable from 90% (2019) to 89.1% (2024).
Location
8651 MEADOWBROOK WAY SE, Snoqualmie, WA 98065
Nearby Alternatives
Families considering Mount Si High School may also want to explore other high schools in the area. CLIP (rated 6.8/10, 9.9 miles away, in nearby Carnation), with a comparable rating. Another option is Echo Glen School (rated 5.4/10, 4.0 miles away), a more accessible option. Additionally, Two Rivers School (rated 5.1/10), a more accessible option. For more schools in Snoqualmie, see our Snoqualmie schools guide .
Nearby Schools
20 within 8.9 mi| School | Distance | Rating |
|---|---|---|
| Two Rivers School Snoqualmie | 0.0 mi | 5.1 |
| Snoqualmie Parent Partnership Program Snoqualmie | 0.4 mi | 6.6 |
| Snoqualmie Middle School Snoqualmie | 0.4 mi | 7.7 |
| Snoqualmie Elementary Snoqualmie | 0.3 mi | 9.2 |
| Snoqualmie Access Snoqualmie | 0.7 mi | — |
| North Bend Elementary School North Bend | 2.7 mi | 9.2 |
| Cascade View Elementary School Snoqualmie | 2.8 mi | 8.8 |
| Timber Ridge Elementary School Snoqualmie | 3.0 mi | 8.3 |
| Edwin R Opstad Elementary North Bend | 3.8 mi | 8.8 |
| Echo Glen School Snoqualmie | 4.0 mi | 5.4 |
| Fall City Elementary Fall City | 4.9 mi | 7.8 |
| Chief Kanim Middle School Fall City | 5.2 mi | 7.4 |
| Twin Falls Middle School North Bend | 5.8 mi | 4.2 |
| Tolt Middle School Carnation | 9.4 mi | 6.2 |
| PARADE Carnation | 9.9 mi | 6.7 |
| CLIP Carnation | 9.9 mi | 6.8 |
| Carnation Elementary School Carnation | 9.9 mi | 7.5 |
| Cascade Ridge Elementary Sammamish | 8.7 mi | 9.2 |
| Endeavour Elementary School Issaquah | 8.7 mi | 9.1 |
| Grand Ridge Elementary Issaquah | 8.9 mi | 8.9 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 98065 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$182,132
Median Home Value
$890,300
Median Rent
$3,052/mo
Population
16,061
College Educated
64.1%
Homeownership
84.7%
Avg Commute
30.2 min
Poverty Rate
0.6%
Median Age
38
Community Profile
The community surrounding Mount Si High School has a median household income of $182,132. It is a well-educated community where 64% of adults hold a bachelor's degree or higher. The median home value in the area is $890,300, with a median rent of $3,052/month. The local poverty rate of 0.6% is relatively low. The average commute for residents is 30 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Bellevue High School Bellevue, WA | 7.5 |
| North Creek High School Bothell, WA | 7.5 |
| Ballard High School Seattle, WA | 7.6 |
| Bothell High School Bothell, WA | 7.4 |
| Juanita High School Kirkland, WA | 7.4 |
| Lake Washington High School Kirkland, WA | 7.4 |
Frequently Asked Questions
Common questions about Mount Si High School
What grades does Mount Si High School serve?
Mount Si High School serves students in grades 9th through 12th.
How many students attend Mount Si High School?
Mount Si High School has an enrollment of approximately 2,172 students.
What is the student-teacher ratio at Mount Si High School?
The student-teacher ratio at Mount Si High School is 21.7:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Mount Si High School rank in WA?
Mount Si High School is ranked #571 out of 2,225 schools in WA.
What is Mount Si High School's MySchoolScout rating?
Mount Si High School has a composite rating of 7.5 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Mount Si High School?
Based on the most recent state assessment data, Mount Si High School has 61.7% math proficiency and 89.3% reading/ELA proficiency.
Is Mount Si High School a charter school?
No, Mount Si High School is not a charter school. It is a traditional public school operated by the local school district.
Is Mount Si High School a Title I school?
No, Mount Si High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Mount Si High School?
12.8% of students at Mount Si High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 2,172
- Student-Teacher Ratio
- 21.7:1
- Teachers (FTE)
- 100
- Free/Reduced Lunch
- 12.8%
- Type
- regular
- Setting
- Fringe Town
- County
- King County
- Phone
- (425) 831-8100
- Data Year
- 2023–2024
Resources & Links
District
Snoqualmie Valley School District- District Enrollment
- 7,161
- Schools in District
- 13
- Per-Pupil Spending
- $17,506
- District Rank
- #8 of 12
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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