Average
#708 of 1,226 schools in OR
Mountainside High School
High School · Beaverton SD 48J
12500 SW 175th Ave, Beaverton, OR 97007
Enrollment
1,722
Student-Teacher
22.1:1
Score
5.9
Grades
9th – 12th
Enrollment
1,722
Student-Teacher
22.1:1
Score
5.9
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Oregon schools
#708 of 1,226
In Beaverton
#26 of 35
public schools
In district
#47 of 56
Beaverton SD 48J
Academic performance
7.1 / 10
Very Good
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Mountainside High School
High School in Beaverton · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Scholls Heights Elementary School
0.5 mi away. Use as a geographic alternative in the same move search.
Nancy Ryles Elementary School
1.4 mi away. Use as a geographic alternative in the same move search.
About Mountainside High School
Mountainside High School is a public high school in Beaverton, OR, part of Beaverton SD 48J. Mountainside High School serves approximately 1,722 students, and covers grades 9th-12th, and has a 22.1:1 student-teacher ratio. Mountainside High School has a current MySchoolScout rating of 5.9 out of 10 and ranks #708 of 1,226 schools in OR.
Structured state assessment records for Mountainside High School show 59% math proficiency (multi-year average, 2018-2025) and 75% reading/ELA proficiency (multi-year average, 2018-2025).
- This school 5.9 · Average
- District avg 6.5
- OR avg 5.9
What Parents Should Know
Mountainside High School runs 22.1:1 students to teachers, above the national average. That often means bigger classes. Ask how the school supports kids who need extra help, and whether there are teaching assistants or small-group time.
Mountainside High School sits in a rural area, which can mean longer drives for some families. Rural schools are often community anchors with smaller classes, but check transportation, after-school options, and access to specialized services before you commit.
40% of students at Mountainside High School were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
View breakdown
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Mountainside High School — Students at Mountainside High School score 43% proficient, which is below what's typical for similar communities (expected: 47%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
22.5%
Students qualifying for federal meal assistance
Test Scores OR OSAS (2024-25)
Based on 12 test records from OR state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 1.5/10.
How Mountainside High School Compares
See how Mountainside High School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
12500 SW 175th Ave, Beaverton, OR 97007
Nearby Alternatives
Families considering Mountainside High School may also want to explore other high schools in the area. Southridge High School (rated 6.1/10, 2.8 miles away), with a very similar rating. Additionally, Aloha High School (rated 4.5/10, 4.0 miles away), a more accessible option. For more schools in Beaverton, see our Beaverton schools guide .
Nearby Schools
20 within 3.7 mi| School | Distance | Rating |
|---|---|---|
| Scholls Heights Elementary School Beaverton | 0.5 mi | 8.3 |
| Nancy Ryles Elementary School Beaverton | 1.4 mi | 7.9 |
| SOUTHWEST CHRISTIAN SCHOOL Beaverton | 2.0 mi | 5.4 |
| Sexton Mountain Elementary School Beaverton | 2.4 mi | 8.8 |
| Cooper Mountain Elementary School Beaverton | 2.6 mi | 8.2 |
| Errol Hassell Elementary School Beaverton | 2.7 mi | 6.5 |
| Hiteon Elementary School Beaverton | 2.5 mi | 8.5 |
| Alberta Rider Elementary School Tigard | 2.4 mi | 5.9 |
| WESTGATE CHRISTIAN SCHOOL Tigard | 2.5 mi | 8.3 |
| Deer Creek Elementary School Tigard | 2.7 mi | 7.1 |
| Hazeldale Elementary School Aloha | 3.2 mi | 7.6 |
| Chehalem Elementary School Beaverton | 3.5 mi | 8.1 |
| Mary Woodward Elementary School Tigard | 2.5 mi | 8.6 |
| Mountain View Middle School Beaverton | 3.6 mi | 4.5 |
| Southridge High School Beaverton | 2.8 mi | 6.1 |
| Highland Park Middle School Beaverton | 3.4 mi | 7.0 |
| Conestoga Middle School Beaverton | 2.9 mi | 6.7 |
| Aloha-Huber Park School Beaverton | 3.9 mi | 6.0 |
| Aloha High School Beaverton | 4.0 mi | 4.5 |
| Fir Grove Elementary School Beaverton | 3.7 mi | 7.7 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 97007 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$116,667
Median Home Value
$582,700
Median Rent
$1,792/mo
Population
48,081
College Educated
53.7%
Homeownership
74.8%
Avg Commute
26.2 min
Poverty Rate
5.8%
Median Age
41
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Silverton High School Silverton, OR | 6.1 |
| Southridge High School Beaverton, OR | 6.1 |
| Franklin High School Portland, OR | 5.7 |
| Ida B. Wells-Barnett High School Portland, OR | 5.7 |
| Roseburg High School Roseburg, OR | 5.7 |
| Beaverton High School Beaverton, OR | 5.6 |
Frequently Asked Questions
Common questions about Mountainside High School
What grades does Mountainside High School serve?
Mountainside High School serves students in grades 9th through 12th.
How many students attend Mountainside High School?
Mountainside High School has an enrollment of approximately 1,722 students.
What is the student-teacher ratio at Mountainside High School?
The student-teacher ratio at Mountainside High School is 22.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Mountainside High School rank in OR?
Mountainside High School ranks #708 of 1,226 schools in OR.
What is Mountainside High School's MySchoolScout rating?
Mountainside High School has a current MySchoolScout rating of 5.9 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Mountainside High School?
Based on loaded state assessment records, Mountainside High School has 59% math proficiency (multi-year average, 2018-2025) and 75% reading/ELA proficiency (multi-year average, 2018-2025).
Is Mountainside High School a charter school?
No, Mountainside High School is not a charter school. It is a traditional public school operated by the local school district.
Is Mountainside High School a Title I school?
No, Mountainside High School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Mountainside High School?
22.5% of students at Mountainside 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
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,722
- Student-Teacher Ratio
- 22.1:1
- Teachers (FTE)
- 78
- Free/Reduced Lunch
- 22.5%
- Type
- regular
- Setting
- Fringe Rural
- County
- Washington County
- Chronic Absenteeism (SY 2022-23)
- 39.6%
- Phone
- (503) 356-3500
- 4-Year Graduation
- 91.0%
Resources & Links
District
Beaverton SD 48J- District Enrollment
- 38,049
- Schools in District
- 56
- Per-Pupil Spending
- $15,998
- District Rank
- #47 of 56
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