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
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.
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?
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Quick Stats (2025)
Grades: 9-12
Enrollment: 1,722 students
Student:Teacher Ratio: 22:1
Minority Enrollment: 42%
Graduation Rate
: 95% (Top 5%)
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
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