Enrollment
1,741
Oregon · 2024-25 NCES data
High school (grades 9-12) · Beaverton, OR
Mountainside High School
Federal NCES profile for Mountainside High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 29/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 410192001855
👥 S:T ratio 11
📚 AP courses 10
🌟 Gifted program 70
🎓 Counselors 46
📋 Attendance 9
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mountainside High School earns 29/100 on the Resource Investment Index, with class sizes larger than 90% of Oregon schools. It is also one of the largest schools in Oregon.
- #5 of 5
- high schools in Beaverton · Resource Index
- 29
- Resource Index · Lower
- 22.3:1
- large classes for Oregon
- 17.5%
- free-lunch eligible
Mountainside High School has class sizes larger than 90% of Oregon schools. Computed live against every Oregon school reporting to NCES.
By Resource Investment Index, Mountainside High School ranks #5 of 5 high schools in Beaverton, OR.
School address
District: Beaverton Sd 48j · Oregon
NCES ID 410192001855 Verify on NCES CCD record →
Teachers (FTE)
78.0
Federal CCD staff survey
Students per teacher
22.3:1
vs 17.6:1 Oregon avg
+27% vs state
Free-lunch eligible
17.5%
vs 52.8% Oregon avg
-67% vs state
Student-teacher ratio in context
How Mountainside High School compares with Oregon and U.S. medians
What stands out at Mountainside High School
Mountainside High School is a lower-poverty, large high school in Beaverton, Oregon, enrolling 1,741 students.
Class loads run heavy: 22.3:1 is larger than about 90% of Oregon schools and 27% above the 17.6:1 state mean, so each teacher carries more students than is typical.
Comparatively few students face economic hardship here, 17.5% free-meal eligibility runs 67% below the Oregon average.
By headcount it is one of the larger campuses in Oregon, bigger than 99% of state schools at 1,741 students.
Its Resource Investment Index sits near the middle of the pack among 1,273 scored Oregon schools.
Against 33 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #13.
Its student body is led by White (56%) and Hispanic or Latino (15%) (diversity index 63/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor coverage runs a bit thin, about 268 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 36.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Beaverton's high schools, it stands alongside Aloha High School (1,658 students): Mountainside High School is larger than that campus by headcount and runs heavier classes (22.3:1 vs 17.5:1).
Beaverton Sd 48j also operates Westview High School (2,423 students) and Sunset High School (1,812 students) alongside Mountainside High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Mountainside High School compares
Mountainside High School on the metrics families compare, against Oregon and U.S. means.
| Metric | This school | vs Oregon | Oregon avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 22.3:1 | ▲ 27% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 17.5% | ▼ 67% | 52.8% | 51.7% |
| Enrollment | 1,741 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
22.3:1
Leaner classes than 10% of US schools, heavier class loads than most.
1,741
Bigger than 97% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
17.5%
free-lunch eligible
- 67% below the Oregon average of 52.8%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
22.3:1
students per teacher
- 27% above state mean
Top 90% in Oregon - lower ratio than 10% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
36.2%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$15,015
per pupil, district-wide
- below Oregon avg of $18,086
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors6.5 FTE
Per 268 students, the combined health-and-guidance staffing load for this school.
Discipline context
3
in-school suspensions + 59 out-of-school
Suspension rate: 0.2 per 100 students. Combined in-school and out-of-school rate: 3.6 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 55.8%
Hispanic or Latino 15.3%
Asian 13.2%
Two or More 11.2%
African American 3.5%
Native Hawaiian / Pacific Islander 0.7%
American Indian / Alaska Native 0.3%
Largest group: White at 55.8% of enrollment.
Student-body diversity index 63.4/100
Simpson diversity index - at 63.4, Mountainside High School is more mixed than the Oregon school average of 47.1.
Programs
AP program Not offered
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Beaverton Sd 48j, which includes Mountainside High School.
$15,015
Per student
-17%
vs Oregon
Avg $18,086
-10%
vs U.S.
Avg $16,593
Revenue mix
Local 42.2%
State 49.0%
Federal 8.8%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Mountainside High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Westview High School | Larger | Similar economic need | Similar S:T ratio |
| Sunset High School | Similar size | Similar economic need | Similar S:T ratio |
| Aloha High School | Similar size | Higher economic need | Lower S:T ratio |
| Beaverton High School | Similar size | Higher economic need | Lower S:T ratio |
| Southridge High School | Similar size | Higher economic need | Lower S:T ratio |
Comparisons are relative to Mountainside High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,423
- Students per teacher
- 22.4:1
- Resource Index
- 28/100
- Enrollment
- 1,812
- Students per teacher
- 21.3:1
- Resource Index
- 37/100
- Enrollment
- 1,658
- Students per teacher
- 17.5:1
- Resource Index
- 54/100
- Enrollment
- 1,436
- Students per teacher
- 16.5:1
- Resource Index
- 42/100
- Enrollment
- 1,430
- Students per teacher
- 17.7:1
- Resource Index
- 36/100
Similar high schools in Beaverton
4 comparable high schools (grades 9-12) serving the same city.
Aloha High School
Standard public school
1,658 students 17.5:1 students per teacher
Beaverton High School
Standard public school
1,436 students 16.5:1 students per teacher
Southridge High School
Standard public school
1,430 students 17.7:1 students per teacher
Community School
Alternative education program
149 students 8.3:1 students per teacher
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Oregon, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,741 students)
Next steps
Verify locally before acting on Mountainside High School's federal record.
- Compare Mountainside High School against another school. Compare schools
- Beaverton Sd 48j's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Mountainside High School
How many students attend Mountainside High School?
Mountainside High School has 1,741 students enrolled. It is a high school in Beaverton, OR.
What is the student-teacher ratio at Mountainside High School?
The student-teacher ratio at Mountainside High School is 22.3:1, which is 27% higher than the Oregon average of 17.6:1 and 42% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Mountainside High School?
17.5% of students at Mountainside High School are eligible for free lunch, compared to the Oregon average of 52.8%.
What is the racial and ethnic makeup of Mountainside High School?
The largest demographic group at Mountainside High School is White at 55.8% of enrollment, in Beaverton, OR. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.4/100.
What is the Resource Investment Index for Mountainside High School?
Mountainside High School has a Resource Investment Index of 29/100 (lower reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Mountainside High School rank among high schools in Beaverton?
By Resource Investment Index, Mountainside High School ranks #5 of 5 high schools in Beaverton, OR. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Beaverton on the city page.
Is Mountainside High School a good school?
Mountainside High School earns 29/100 on the Resource Investment Index, with class sizes larger than 90% of Oregon schools. It is also one of the largest schools in Oregon. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Beaverton Sd 48j?
Besides Mountainside High School, Beaverton Sd 48j also operates Westview High School (2,423 students), Sunset High School (1,812 students), and Aloha High School (1,658 students). See the Beaverton Sd 48j district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.