Serving 1,722 students in grades 9-12, Mountainside High School ranks in the top 10% of all schools in Oregon for overall test scores (math proficiency is top 10%, and reading proficiency is top 10%).
The percentage of students achieving proficiency in math is 55-59% (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 22:1 is higher than the Oregon state level of 17:1.
Minority enrollment is 42% of the student body (majority Hispanic and Asian), which is equal to the Oregon state average of 42% (majority Hispanic).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 1,722 students
- Student:Teacher Ratio: 22:1
- Minority Enrollment: 42%
- Graduation Rate: 95% (Top 5% in OR)
- Overall Testing Rank: Top 10%
- Math Proficiency: 55-59% (Top 10%)
- 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
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
Graduation Rate
Diversity
School Overview
Mountainside High School's student population of 1,722 students has grown by 24% over five school years.
The teacher population of 79 teachers has grown by 21% over five school years.
Grades Offered
Grades 9-12
Total Students
1,722 students
Gender %
Total Classroom Teachers
79 teachers
Students by Grade
School Rankings
Mountainside High School ranks within the top 10% of all 1,196 schools in Oregon (based off of combined math and reading proficiency testing data).
The diversity score of Mountainside High School is 0.62, 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
#101 out of 1196 schools
(Top 10%)
(Top 10%)
Math Test Scores (% Proficient)
55-59%
31%
Reading/Language Arts Test Scores (% Proficient)
60-64%
44%
Science Test Scores (% Proficient)
≥50%
30%
Student : Teacher Ratio
22:1
17:1
American Indian
1%
1%
Asian
13%
4%
Hispanic
14%
26%
Black
3%
3%
White
58%
58%
Hawaiian
1%
1%
Two or more races
10%
7%
All Ethnic Groups
Graduation Rate
95%
81%
Eligible for Free Lunch
20%
51%
Eligible for Reduced Lunch
3%
3%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), OR Dept. of Education
Profile last updated:
Frequently Asked Questions
What is Mountainside High School's ranking?
Mountainside High School is ranked #101 out of 1,196 schools, which ranks it among the top 10% of public schools in Oregon.
What schools are Mountainside High School often compared to?
Mountainside High Schoolis often viewed alongside schools like Southridge High School, Aloha High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
55-59% 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?
1,722 students attend Mountainside High School.
What is the racial composition of the student body?
58% of Mountainside High School students are White, 14% of students are Hispanic, 13% of students are Asian, 10% of students are Two or more races, 3% of students are Black, 1% of students are American Indian, and 1% of students are Hawaiian.
What is the student:teacher ratio of Mountainside High School?
Mountainside High School has a student ration of 22:1, 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
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.
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