Enrollment
657
California · 2024-25 NCES data
Middle school (grades 6-8) · Montclair, CA
Serrano Middle
Federal NCES profile for Serrano Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 062847004411
👥 S:T ratio 31
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 34
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Serrano Middle earns 34/100 on the Resource Investment Index, with class sizes smaller than 82% of California schools. It is also less racially and ethnically mixed than most California schools.
- #7 of 11
- public schools in Montclair · Resource Index
- 34
- Resource Index · Typical
- 17.3:1
- small classes for California
- 73.5%
- free-lunch eligible
Serrano Middle has class sizes smaller than 82% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Serrano Middle ranks #7 of 11 public schools in Montclair, CA.
School address
District: Ontario-Montclair · California
NCES ID 062847004411 Verify on NCES CCD record →
Teachers (FTE)
38.0
Federal CCD staff survey
Students per teacher
17.3:1
vs 21.5:1 California avg
-20% vs state
Free-lunch eligible
73.5%
vs 55.5% California avg
+32% vs state
Student-teacher ratio in context
How Serrano Middle compares with California and U.S. medians
What stands out at Serrano Middle
Serrano Middle is a higher-need, mid-sized middle school in Montclair, California, enrolling 657 students.
Class sizes run a bit leaner than typical: 17.3:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 73.5% of students eligible for free meals.
Enrollment of 657 puts it in the larger third of California schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 2,018 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #298.
Its student body is predominantly Hispanic or Latino (90% of enrollment), among the less diverse in the state (diversity index 20/100).
Counselor access is stretched at roughly 657 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 26.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Montclair's middle schools, it stands alongside Vernon Middle (580 students): Serrano Middle is larger than that campus by headcount and runs leaner classes (17.3:1 vs 19.3:1).
Ontario-Montclair also operates Edison Elementary (736 students) and Central Language Academy (736 students) alongside Serrano Middle.
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 Serrano Middle compares
Serrano Middle on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17.3:1 | ▼ 20% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 73.5% | ▲ 32% | 55.5% | 51.7% |
| Enrollment | 657 | top 27% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.3:1
Leaner classes than 29% of US schools, heavier class loads than most.
657
Bigger than 77% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
73.5%
free-lunch eligible
- 32% 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
17.3:1
students per teacher
- 20% below state mean
Top 18% in California - lower ratio than 82% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
26.3%
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
$17,537
per pupil, district-wide
- above California avg of $16,509
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 657 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 14 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 2.1 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
Hispanic or Latino 89.5%
Asian 3.5%
African American 3.3%
White 2.3%
American Indian / Alaska Native 0.9%
Two or More 0.3%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 89.5% of enrollment.
Student-body diversity index 19.6/100
Simpson diversity index - at 19.6, Serrano Middle is less mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Ontario-Montclair, which includes Serrano Middle.
$17,537
Per student
+6%
vs California
Avg $16,509
+6%
vs U.S.
Avg $16,593
Revenue mix
Local 11.5%
State 75.0%
Federal 13.5%
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 Serrano Middle Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Edison Elementary | Similar size | Lower economic need | Higher S:T ratio |
| Central Language Academy | Similar size | Lower economic need | Higher S:T ratio |
| Ray Wiltsey Middle | Similar size | Similar economic need | Similar S:T ratio |
| Oaks Middle | Similar size | Similar economic need | Higher S:T ratio |
| Richard Haynes Elementary | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Serrano Middle's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 736
- Students per teacher
- 26.3:1
- Resource Index
- 48/100
- Enrollment
- 736
- Students per teacher
- 25.4:1
- Resource Index
- 27/100
- Enrollment
- 727
- Students per teacher
- 18.2:1
- Resource Index
- 36/100
- Enrollment
- 668
- Students per teacher
- 21.5:1
- Resource Index
- 21/100
- Enrollment
- 641
- Students per teacher
- 21.4:1
- Resource Index
- 21/100
Similar middle schools in Montclair
1 comparable middle schools (grades 6-8) serving the same city.
Similar middle 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 (~657 students)
Similar student-teacher ratio (~17.3:1)
Next steps
Verify locally before acting on Serrano Middle's federal record.
- Compare Serrano Middle against another school. Compare schools
- Ontario-Montclair'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 Serrano Middle
How many students attend Serrano Middle?
Serrano Middle has 657 students enrolled. It is a middle school in Montclair, CA.
What is the student-teacher ratio at Serrano Middle?
The student-teacher ratio at Serrano Middle is 17.3:1, which is 20% lower than the California average of 21.5:1 and 10% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Serrano Middle?
73.5% of students at Serrano Middle are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Serrano Middle?
The largest demographic group at Serrano Middle is Hispanic or Latino at 89.5% of enrollment, in Montclair, CA.
What is the Resource Investment Index for Serrano Middle?
Serrano Middle has a Resource Investment Index of 34/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Serrano Middle rank among public schools in Montclair?
By Resource Investment Index, Serrano Middle ranks #7 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 Serrano Middle a good school?
Serrano Middle earns 34/100 on the Resource Investment Index, with class sizes smaller than 82% of California schools. It is also less racially and ethnically mixed than most California 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 Ontario-Montclair?
Besides Serrano Middle, Ontario-Montclair also operates Edison Elementary (736 students), Central Language Academy (736 students), and Ray Wiltsey Middle (727 students). See the Ontario-Montclair 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.