Enrollment
378
Arizona · 2024-25 NCES data
High school (grades 9-12) · Wittmann, AZ
Mountainside High School
Federal NCES profile for Mountainside High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 36/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 040546003690
👥 S:T ratio 20
📚 AP courses 10
🌟 Gifted program 70
🎓 Counselors 24
📋 Attendance 53
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mountainside High School earns 36/100 on the Resource Investment Index, with class sizes larger than 76% of Arizona schools.
- 36
- Resource Index · Typical
- 19.9:1
- large classes for Arizona
- 31.8%
- free-lunch eligible
- 378
- students enrolled
Mountainside High School has class sizes larger than 76% of Arizona schools. Computed live against every Arizona school reporting to NCES.
School address
District: Nadaburg Unified School District (4252) · Arizona
NCES ID 040546003690 Verify on NCES CCD record →
Teachers (FTE)
19.0
Federal CCD staff survey
Students per teacher
19.9:1
vs 17:1 Arizona avg
+17% vs state
Free-lunch eligible
31.8%
vs 48.3% Arizona avg
-34% vs state
Student-teacher ratio in context
How Mountainside High School compares with Arizona and U.S. medians
What stands out at Mountainside High School
Mountainside High School is a mid-sized high school in Wittmann, Arizona, enrolling 378 students.
Class loads run somewhat heavier than typical: 19.9:1 puts it in the larger third of Arizona schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 31.8% of students eligible for free meals.
With 378 students, its enrollment sits close to the Arizona median campus size.
Its Resource Investment Index lands in the upper third of 2,064 scored Arizona schools.
Against 232 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #27.
Its student body is led by White (46%) and Hispanic or Latino (44%) (diversity index 59/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor availability sits well past the ASCA benchmark, roughly 378 students sharing each counselor, though short of the most stretched campuses.
Attendance runs somewhat below the norm, with 18.8% of students chronically absent per the 2021-22 civil-rights collection.
Its district draws 16.3% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Nadaburg Unified School District (4252) also operates Desert Oasis Elementary School (753 students) and Nadaburg Elementary School (502 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 Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 19.9:1 | ▲ 17% | 17:1 | 15.7:1 |
| Free-lunch eligible | 31.8% | ▼ 34% | 48.3% | 51.7% |
| Enrollment | 378 | top 54% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
19.9:1
Leaner classes than 16% of US schools, heavier class loads than most.
378
Bigger than 44% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
31.8%
free-lunch eligible
- 34% below the Arizona average of 48.3%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
19.9:1
students per teacher
- 17% above state mean
Top 76% in Arizona - lower ratio than 24% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
18.8%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$12,232
per pupil, district-wide
- below Arizona avg of $13,145
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 378 students, the combined health-and-guidance staffing load for this school.
Discipline context
24
in-school suspensions + 19 out-of-school
Suspension rate: 6.3 per 100 students. Combined in-school and out-of-school rate: 11.4 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 46.0%
Hispanic or Latino 44.2%
African American 4.5%
Two or More 2.9%
Asian 0.8%
American Indian / Alaska Native 0.8%
Native Hawaiian / Pacific Islander 0.8%
Largest group: White at 46.0% of enrollment.
Student-body diversity index 59.0/100
Simpson diversity index - at 59.0, Mountainside High School is more mixed than the Arizona school average of 47.2.
Programs
AP program Not offered
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Nadaburg Unified School District (4252), which includes Mountainside High School.
$12,232
Per student
-7%
vs Arizona
Avg $13,145
-26%
vs U.S.
Avg $16,593
Revenue mix
Local 36.9%
State 46.7%
Federal 16.3%
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 |
|---|---|---|---|
| Desert Oasis Elementary School | Larger | Similar economic need | No ratio data |
| Nadaburg Elementary School | Larger | Higher economic need | No ratio data |
| Nadaburg Online Virtual Academy | Smaller | No free-lunch data | No ratio data |
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
- 753
- Students per teacher
- -
- Resource Index
- 43/100
- Enrollment
- 502
- Students per teacher
- -
- Resource Index
- 23/100
- Enrollment
- 8
- Students per teacher
- -
- Resource Index
- 30/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Arizona, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~378 students)
Similar student-teacher ratio (~19.9:1)
Next steps
Verify locally before acting on Mountainside High School's federal record.
- Compare Mountainside High School against another school. Compare schools
- Nadaburg Unified School District (4252)'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 378 students enrolled. It is a high school in Wittmann, AZ.
What is the student-teacher ratio at Mountainside High School?
The student-teacher ratio at Mountainside High School is 19.9:1, which is 17% higher than the Arizona average of 17:1 and 27% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Mountainside High School?
31.8% of students at Mountainside High School are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of Mountainside High School?
The largest demographic group at Mountainside High School is White at 46.0% of enrollment, in Wittmann, AZ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 59.0/100.
What is the Resource Investment Index for Mountainside High School?
Mountainside High School has a Resource Investment Index of 36/100 (typical 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).
Is Mountainside High School a good school?
Mountainside High School earns 36/100 on the Resource Investment Index, with class sizes larger than 76% of Arizona schools. 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 Nadaburg Unified School District (4252)?
Besides Mountainside High School, Nadaburg Unified School District (4252) also operates Desert Oasis Elementary School (753 students), Nadaburg Elementary School (502 students), and Nadaburg Online Virtual Academy (8 students). See the Nadaburg Unified School District (4252) 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.