Mountainside High School
Score 81.7/100: better than 81% of Oregon high schools on 2025-26 state tests. Schools are only compared with others of the same type in the same state. How we score schools
Performance (state tests, 2025-26)
% proficient on state tests in Oregon, all students. Colored bars are green when the school is at or above the average for similar Oregon schools.
Results over time
How this school's published results have moved year by year.
All 6 published results by grade and test
As published by Oregon Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.
| Subject | Grade | Test | Result | Students tested |
|---|---|---|---|---|
| English language arts | High school | OSAS | 56.6 | 368 |
| English language arts | All grades | OSAS | 56.6 | 368 |
| Math | High school | OSAS | 31.8 | 346 |
| Math | All grades | OSAS | 31.8 | 348 |
| Science | High school | OSAS | 45.9 | 329 |
| Science | All grades | OSAS | 45.9 | 329 |
School profile
- Grades
- 9-12
- Students
- 1,722
- Type
- High school
- Charter school
- No
- Program
- Regular
Students
District and location
Contact
Beaverton, OR 97007
"Typical" is the middle (median) high school in Oregon. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).
Nearby high schools
Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.
Explore schools around Beaverton
Location
Official sources
Every figure on this page comes from published government data. Check the originals here; we refresh when states release new results.
U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD): school directory, grades served, enrollment and free/reduced-price lunch, 2023-24 and 2024-25. Spotted a mistake? Tell us.
Mountainside High School at a glance
Mountainside High School is a public high school in Beaverton, Oregon, serving grades 9-12. It is part of the Beaverton SD 48J school district. It has about 1,722 students (a typical Oregon high school has 383). About 51% of students are eligible for free or reduced-price lunch, compared with 71% at a typical Oregon high school, which is useful context when reading test results.
In 2025-26 state tests, 57% in English language arts (similar schools: 43%) and 32% in math (similar schools: 20%) reached the state standard (% proficient). On our score, which compares it only with other Oregon high schools, it scores 81.7 out of 100: better than 81% of them, ranking #41 of 221. Its English language arts result fell by 4 points from the year before. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.
Page updated 2026-10-12.