Mountainside High School is a public high school in Beaverton, Oregon. It is the newest of six high schools in the Beaverton School District.
Serving 1,741 students in grades 9-12, Mountainside High School ranks in the top 20% of all schools in Oregon for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 40-44% (which is higher than the Oregon state average of 31%). The percentage of students achieving proficiency in reading/language arts is 60-64% (which is higher than the Oregon state average of 44%).
The student-teacher ratio of 21:1 is higher than the Oregon state level of 17:1.
Minority enrollment is 44% of the student body (majority Hispanic and Asian), which is higher than the Oregon state average of 43% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 1,741 students
- Student-Teacher Ratio: 21:1
- Minority Enrollment: 44%
- Graduation Rate: 95% (Top 10% in OR)
- Overall Testing Rank: Top 20%
- Math Proficiency: 40-44% (Top 30%)
- Reading Proficiency: 60-64% (Top 20%)
- Science Proficiency: ≥50% (Top 20%)
- Source: National Center for Education Statistics (NCES), OR Dept. of Education
Top Rankings
Mountainside High School ranks among the top 20% of public schools in Oregon for:
Category
Attribute
Overall Rank
Reading/Language Arts Proficiency
Science Proficiency
Graduation Rate
Diversity
School Overview
Mountainside High School's student population of 1,741 students has stayed relatively flat over five school years.
The teacher population of 83 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,741 students
Total Classroom Teachers
83 teachers
Year Founded
2017
Colors
Black, Silver, and Columbia Blue
School Rankings
Mountainside High School ranks within the top 20% of all 1,174 schools in Oregon (based off of combined math and reading proficiency testing data).
The diversity score of Mountainside High School is 0.64, which is more than the diversity score at state average of 0.60. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#186 out of 1174 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
40-44%
31%
Reading/Language Arts Test Scores (% Proficient)
60-64%
44%
Science Test Scores (% Proficient)
≥50%
30%
Student-Teacher Ratio
21:1
17:1
American Indian
n/a
1%
Asian
13%
4%
Hispanic
15%
26%
Black
4%
3%
White
56%
57%
Hawaiian
1%
1%
Two or more races
11%
8%
All Ethnic Groups
Graduation Rate
95%
81%
Eligible for Free Lunch
50%
67%
Eligible for Reduced Lunch
3%
3%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), OR Dept. of Education
School Notes
- School Mascot: Maverick
Frequently Asked Questions
What is Mountainside High School's ranking?
Mountainside High School is ranked #186 out of 1,174 schools, which ranks it among the top 20% of public schools in Oregon.
What schools are Mountainside High School often compared to?
Mountainside High Schoolis often viewed alongside schools like Aloha High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
40-44% of students have achieved math proficiency (compared to the 31% OR state average), while 60-64% of students have achieved reading proficiency (compared to the 44% OR state average).
What is the graduation rate of Mountainside High School?
The graduation rate of Mountainside High School is 95%, which is higher than the Oregon state average of 81%.
How many students attend Mountainside High School?
1,741 students attend Mountainside High School.
What is the racial composition of the student body?
56% of Mountainside High School students are White, 15% of students are Hispanic, 13% of students are Asian, 11% of students are Two or more races, 4% of students are Black, and 1% of students are Hawaiian.
What is the student-teacher ratio of Mountainside High School?
Mountainside High School has a student ration of 21:1, which is higher than the Oregon state average of 17:1.
What grades does Mountainside High School offer ?
Mountainside High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Mountainside High School part of?
Mountainside High School is part of Beaverton SD 48j School District.
In what neighborhood is Mountainside High School located?
Mountainside High School is located in the South Cooper Mountain neighborhood of Beaverton, OR.
School Reviews
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