Enrollment
2,515
California · 2024-25 NCES data
High school (grades 9-12) · Montclair, CA
Montclair High
Federal NCES profile for Montclair High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 060816000793
👥 S:T ratio 10
📚 AP courses 60
🌟 Gifted program 70
🎓 Counselors 28
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Montclair High earns 42/100 on the Resource Investment Index, with class sizes near the California median. It is also one of the largest schools in California.
- #6 of 11
- public schools in Montclair · Resource Index
- 42
- Resource Index · Typical
- 22.5:1
- students per teacher
- 77.7%
- free-lunch eligible
Montclair High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Montclair High ranks #6 of 11 public schools in Montclair, CA.
School address
District: Chaffey Joint Union High · California
NCES ID 060816000793 Verify on NCES CCD record →
Teachers (FTE)
112.0
Federal CCD staff survey
Students per teacher
22.5:1
vs 21.5:1 California avg
+5% vs state
Free-lunch eligible
77.7%
vs 55.5% California avg
+40% vs state
Student-teacher ratio in context
How Montclair High compares with California and U.S. medians
What stands out at Montclair High
Montclair High is a high-poverty, large high school in Montclair, California, enrolling 2,515 students.
At 22.5:1, its student-teacher ratio sits close to the California median, within a few percentage points of the 21.5:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat above the state's typical profile, with 77.7% of students eligible for free meals.
By headcount it is one of the larger campuses in California, bigger than 99% of state schools at 2,515 students.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Against 180 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #51.
Its student body is predominantly Hispanic or Latino (88% of enrollment) (diversity index 22/100).
On the academic-pipeline side it reports 12 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 359 students sharing each counselor, though short of the most stretched campuses.
The federal civil-rights collection also records 6 expulsions at this campus for 2021-22.
Chaffey Joint Union High also operates Etiwanda High (3,446 students) and Rancho Cucamonga High (3,221 students) alongside Montclair High.
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 Montclair High compares
Montclair High on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 22.5:1 | ▲ 5% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 77.7% | ▲ 40% | 55.5% | 51.7% |
| Enrollment | 2,515 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
22.5:1
Leaner classes than 9% of US schools, heavier class loads than most.
2,515
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
77.7%
free-lunch eligible
- 40% above the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
22.5:1
students per teacher
- 5% above state mean
Top 58% in California - lower ratio than 42% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Funding equity
$15,404
per pupil, district-wide
- below California avg of $16,509
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors7.0 FTE
Per 359 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 241 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 9.6 per 100 students. Reported via the Civil Rights Data Collection. Includes 6 expulsions.
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
Hispanic or Latino 88.0%
Asian 4.2%
White 3.9%
African American 1.9%
Two or More 1.2%
American Indian / Alaska Native 0.7%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 88.0% of enrollment.
Student-body diversity index 22.2/100
Simpson diversity index - at 22.2, Montclair High is less mixed than the California school average of 46.0.
Programs
AP courses offered 12
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Chaffey Joint Union High, which includes Montclair High.
$15,404
Per student
-7%
vs California
Avg $16,509
-7%
vs U.S.
Avg $16,593
Revenue mix
Local 35.9%
State 52.9%
Federal 11.2%
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 Montclair High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Etiwanda High | Larger | Lower economic need | Higher S:T ratio |
| Rancho Cucamonga High | Larger | Lower economic need | Higher S:T ratio |
| Chaffey High | Similar size | Similar economic need | Similar S:T ratio |
| Los Osos High | Similar size | Lower economic need | Higher S:T ratio |
| Alta Loma High | Similar size | Lower economic need | Higher S:T ratio |
Comparisons are relative to Montclair High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,446
- Students per teacher
- 24.6:1
- Resource Index
- 28/100
- Enrollment
- 3,221
- Students per teacher
- 24.4:1
- Resource Index
- 31/100
- Enrollment
- 3,127
- Students per teacher
- 22.8:1
- Resource Index
- 30/100
- Enrollment
- 2,759
- Students per teacher
- 24.2:1
- Resource Index
- 28/100
- Enrollment
- 2,386
- Students per teacher
- 24.6:1
- Resource Index
- 23/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~2,515 students)
Next steps
Verify locally before acting on Montclair High's federal record.
- Compare Montclair High against another school. Compare schools
- Chaffey Joint Union High'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 Montclair High
How many students attend Montclair High?
Montclair High has 2,515 students enrolled. It is a high school in Montclair, CA.
What is the student-teacher ratio at Montclair High?
The student-teacher ratio at Montclair High is 22.5:1, which is 5% higher than the California average of 21.5:1 and 43% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Montclair High?
77.7% of students at Montclair High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Montclair High?
The largest demographic group at Montclair High is Hispanic or Latino at 88.0% of enrollment, in Montclair, CA.
What is the Resource Investment Index for Montclair High?
Montclair High has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Montclair High rank among public schools in Montclair?
By Resource Investment Index, Montclair High ranks #6 of 11 public schools in Montclair, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Montclair on the city page.
Is Montclair High a good school?
Montclair High earns 42/100 on the Resource Investment Index, with class sizes near the California median. It is also one of the largest schools in California. 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 Chaffey Joint Union High?
Besides Montclair High, Chaffey Joint Union High also operates Etiwanda High (3,446 students), Rancho Cucamonga High (3,221 students), and Chaffey High (3,127 students). See the Chaffey Joint Union High 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.