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Which teacher or staff member at Mountainside High School deserves more recognition?
Community prompt from u/allk12. Replies below.
Enrollment
1,741
High
DISTRICT 1,306 · STATE 630
SCHOOL COMMUNITY·BEAVERTON SD 48J·NCES 410192001855
Mountainside High School
12500 SW 175th Ave, Beaverton, OR 97007 · (503) 356-3500 · Washington County
GRADES 09–12HIGH41-RURALTITLE IREGULAR SCHOOL1,741 STUDENTS
Student : Teacher
21.1:1
83 FTE teachers
DISTRICT 18.8:1 · STATE 19.8:1
Free / Reduced Lunch
50%
876 students
DISTRICT 55% · STATE 76%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 431 | 25% |
| Grade 10 | 428 | 25% |
| Grade 11 | 456 | 26% |
| Grade 12 | 426 | 24% |
Student demographics
63%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 72% · STATE 59% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
OSAS 2024-25 . % ProficientEnglish Language Arts
60.9%
OR avg 43.0% . -3.1pp since 2023
Math
24.9%
OR avg 31.8% . -5.2pp since 2023
What this means: On the OSAS, Oregon's statewide test, about 61 of every 100 students at this school read and write at grade level and about 25 of 100 do math at grade level. Across all Oregon schools, those numbers are about 43 and 32. Reading and writing scores are down about 3 points since 2023, while math scores are down about 5 points.
OSAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 60.9% | 24.9% |
| 2023-24 | 64.0% | 30.1% |
% Proficient, all students and all tested grades.
Source: OSAS. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
42.2%
composite math + reading, all grades
Predicted
43.0%
based on OR schools with similar FRL share
Beats by
-0.8pp
below demographic expectation
What this means: About 42% of students here test proficient in math and reading, compared with the roughly 43% typical for Oregon schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Oregon's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Mountainside High School
Mountainside High School's state test result (42.2% proficient) is higher than 3 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Mountainside High School this school | 1,741 | 50.3% | 42.2% |
| Franklin High School Portland | 1,807 | 41.9% | 35.0% |
| Lincoln High School Portland | 1,611 | 42.0% | 56.1% |
| Cleveland High School Portland | 1,421 | 41.9% | 53.9% |
| Clackamas High School Clackamas | 1,280 | 58.7% | 25.3% |
| Tualatin High School Tualatin | 1,687 | 58.2% | 28.1% |
Matched among Oregon high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Mountainside High School ranks
Among high schools| Measure | This school | In Oregon | In Washington County |
|---|---|---|---|
| State test proficiency ranked highest first | 42.2% | #26 of 177 | #5 of 19 |
| Math proficiency ranked highest first | 24.9% | #52 of 194 ▼ 19 | #8 of 19 ▼ 3 |
| Reading proficiency ranked highest first | 60.9% | #27 of 201 ▼ 2 | #3 of 19 ▲ 1 |
| Enrollment ranked largest first | 1,741 | #17 of 257 | #5 of 21 |
| Students per teacher ranked fewest first | 21.1:1 | #117 of 171 | #15 of 19 |
| Diversity index ranked most diverse first | 63.4% | #26 of 171 | #11 of 19 |
| Free and reduced lunch ranked highest share first | 50.3% | #173 of 207 | #14 of 21 |
| Enrollment change since 2017-18 ranked fastest growth first | +92.4% | #1 of 67 | #1 of 6 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
1,741
-13 (-1%) vs 2020
Student : Teacher
21.1:1
was 21.1:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 1,741 | 82.7 | 21.1:1 | 50% (876) |
| 2023-24 | 1,722 | 78.8 | 21.9:1 | 22% (387) |
| 2022-23 | 1,758 | 79 | 22.3:1 | 22% (381) |
| 2020-21 | 1,754 | 83 | 21.1:1 | N/A |
| 2017-18 | 905 | 43.8 | 20.7:1 | 22% (200) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Mountainside High School.
Since 2017-18: students up 92% (905 to 1,741); teachers up 89% (43.8 to 82.7).
About Mountainside High School
Mountainside High School is a large high school in Oregon, with an address in Beaverton. It offers grades 9 through 12 and has 1,741 students enrolled. That is 176% above the average of about 630 students for high schools in Oregon.
Beaverton SD 48J serves 37,479 students across 56 schools.
White students are 56% of those enrolled at Mountainside High School. Next come 15% Hispanic, 13% Asian, 11% multiracial, and 3% Black. A diversity index of 63% means there is a 63% chance two randomly chosen students at Mountainside High School are from different groups.
Mountainside High School reported 82.7 full-time-equivalent teachers in 2024-25, a ratio of 21.1:1. High schools in Oregon have an average ratio of 19.8:1. Roughly 50% of students at Mountainside High School can receive free or reduced-price lunch.
On BeatsExpectations, Mountainside High School is within a point of its prediction, a result in the middle 80% of Oregon schools.
Washington County is the school's county. There, median household income comes to about $107,772, the share of adults with a bachelor's degree or higher is 48%, and about 5% of people live in poverty. Washington County's 136 public schools enroll about 79,469 students and include Mountainside High School.
About 0.5 miles separate Mountainside High School from the closest public school, Scholls Heights Elementary School. Within five miles are at least 8 other public schools. On average proficiency, Mountainside High School is 8th of 9 nearby schools with test data.
NCES lists the school's locale as Rural: Fringe. That means it sits in rural territory close to an urban area.
In 2020-21, Mountainside High School enrolled 1,754; in 2024-25, 1,741.
Parents, students, and staff can share information on special education services, counseling, and support programs here. Parents, students, alumni, and staff are welcome to post.
Washington County at a glance
View full county profilePopulation
603,947
Census ACS
Median income
$107,772
Household, ACS
Bachelor's+
48%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
136
79,469 students
Quick facts
Related schools
Other schools in Beaverton SD 48J
- Westview High SchoolHigh · 2,423 students
- Sunset High SchoolHigh · 1,812 students
- Aloha High SchoolHigh · 1,658 students
- Beaverton High SchoolHigh · 1,436 students
- Southridge High SchoolHigh · 1,430 students
- Stoller Middle SchoolMiddle · 1,069 students
Other schools in Beaverton
- Aloha High SchoolHigh · 1,658 students
- Beaverton High SchoolHigh · 1,436 students
- Southridge High SchoolHigh · 1,430 students
- Aloha-Huber Park SchoolElementary · 901 students
- International School of BeavertonHigh · 870 students
- Conestoga Middle SchoolMiddle · 810 students
Other Mountainside High schools
One other US public school is named Mountainside High. Mountainside High School is the largest of the 2.
- Mountainside High SchoolWITTMANN, AZ · 378 students
Nearby schools
- Scholls Heights Elementary School0.5 mi · 597
- Nancy Ryles Elementary School1.4 mi · 447
- Art Rutkin Elementary School1.5 mi · 131
- Sexton Mountain Elementary School2.4 mi · 431
- Alberta Rider Elementary School2.4 mi · 367
- Mary Woodward Elementary School2.5 mi · 417
Frequently asked questions
About Mountainside High SchoolWhat is the total enrollment at Mountainside High School?
Mountainside High School enrolls approximately 1,741 students in grades 09-12.
Is Mountainside High School an elementary, middle, or high school?
Mountainside High School is a high school covering grades 09-12.
How many teachers does Mountainside High School have?
Mountainside High School employs 83 FTE teachers, for a student-to-teacher ratio of 21.1:1.
How diverse is Mountainside High School?
Mountainside High School reports a student body of 56% White, 15% Hispanic, 3% Black, 13% Asian, 11% Two or more.
Who oversees Mountainside High School?
Mountainside High School is overseen by Beaverton SD 48J in Washington County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.