Enrollment
727
California · 2024-25 NCES data
Middle school (grades 6-8) · Ontario, CA
Ray Wiltsey Middle
Federal NCES profile for Ray Wiltsey Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 36/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 062847004400
👥 S:T ratio 27
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 48
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ray Wiltsey Middle earns 36/100 on the Resource Investment Index, with class sizes smaller than 78% of California schools. It is also less racially and ethnically mixed than most California schools.
- #3 of 6
- middle schools in Ontario · Resource Index
- 36
- Resource Index · Typical
- 18.2:1
- small classes for California
- 83.1%
- free-lunch eligible
Ray Wiltsey Middle has class sizes smaller than 78% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Ray Wiltsey Middle ranks #3 of 6 middle schools in Ontario, CA.
School address
District: Ontario-Montclair · California
NCES ID 062847004400 Verify on NCES CCD record →
Teachers (FTE)
40.0
Federal CCD staff survey
Students per teacher
18.2:1
vs 21.5:1 California avg
-15% vs state
Free-lunch eligible
83.1%
vs 55.5% California avg
+50% vs state
Student-teacher ratio in context
How Ray Wiltsey Middle compares with California and U.S. medians
What stands out at Ray Wiltsey Middle
Ray Wiltsey Middle is a high-poverty, mid-sized middle school in Ontario, California, enrolling 727 students.
Class sizes run a bit leaner than typical: 18.2:1 puts it in the smaller third of California schools by student-teacher ratio.
Economic need is high: 83.1% of students qualify for free meals, 50% above the California average, a Title I-weighted population that federal funding formulas prioritise.
Enrollment of 727 puts it in the larger third of California schools by headcount.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Against 1,626 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #187.
Its student body is predominantly Hispanic or Latino (89% of enrollment), among the less diverse in the state (diversity index 20/100).
Counselor access is stretched at roughly 727 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance runs somewhat below the norm, with 21.0% of students chronically absent per the 2021-22 civil-rights collection.
Among Ontario's middle schools, it stands alongside Oaks Middle (668 students): Ray Wiltsey Middle is larger than that campus by headcount and runs leaner classes (18.2:1 vs 21.5:1).
Ontario-Montclair also operates Edison Elementary (736 students) and Central Language Academy (736 students) alongside Ray Wiltsey 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 Ray Wiltsey Middle compares
Ray Wiltsey 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 | 18.2:1 | ▼ 15% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 83.1% | ▲ 50% | 55.5% | 51.7% |
| Enrollment | 727 | top 22% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
18.2:1
Leaner classes than 23% of US schools, heavier class loads than most.
727
Bigger than 82% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
83.1%
free-lunch eligible
- 50% above the California average of 55.5%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
18.2:1
students per teacher
- 15% below state mean
Top 22% in California - lower ratio than 78% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
21.0%
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 727 students, the combined health-and-guidance staffing load for this school.
Discipline context
2
in-school suspensions + 61 out-of-school
Suspension rate: 0.3 per 100 students. Combined in-school and out-of-school rate: 8.7 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 89.1%
African American 6.7%
Asian 1.4%
White 1.2%
American Indian / Alaska Native 1.0%
Two or More 0.4%
Native Hawaiian / Pacific Islander 0.1%
Largest group: Hispanic or Latino at 89.1% of enrollment.
Student-body diversity index 20.1/100
Simpson diversity index - at 20.1, Ray Wiltsey 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 Ray Wiltsey 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 Ray Wiltsey 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 |
| Oaks Middle | Similar size | Lower economic need | Higher S:T ratio |
| Serrano Middle | Similar size | Similar economic need | Similar S:T ratio |
| Richard Haynes Elementary | Similar size | Lower economic need | Higher S:T ratio |
Comparisons are relative to Ray Wiltsey 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
- 668
- Students per teacher
- 21.5:1
- Resource Index
- 21/100
- Enrollment
- 657
- Students per teacher
- 17.3:1
- Resource Index
- 34/100
- Enrollment
- 641
- Students per teacher
- 21.4:1
- Resource Index
- 21/100
Similar middle schools in Ontario
5 comparable middle schools (grades 6-8) serving the same city.
Oaks Middle
Standard public school
668 students 21.5:1 students per teacher
Grace Yokley Junior High
Standard public school
606 students 20.2:1 students per teacher
Vina Danks Middle
Standard public school
544 students 16:1 students per teacher
De Anza Middle
Standard public school
510 students 15.5:1 students per teacher
Woodcrest Junior High
Standard public school
324 students 19.1:1 students per teacher
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 (~727 students)
Similar student-teacher ratio (~18.2:1)
Next steps
Verify locally before acting on Ray Wiltsey Middle's federal record.
- Compare Ray Wiltsey 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 Ray Wiltsey Middle
How many students attend Ray Wiltsey Middle?
Ray Wiltsey Middle has 727 students enrolled. It is a middle school in Ontario, CA.
What is the student-teacher ratio at Ray Wiltsey Middle?
The student-teacher ratio at Ray Wiltsey Middle is 18.2:1, which is 15% lower than the California average of 21.5:1 and 16% 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 Ray Wiltsey Middle?
83.1% of students at Ray Wiltsey Middle are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Ray Wiltsey Middle?
The largest demographic group at Ray Wiltsey Middle is Hispanic or Latino at 89.1% of enrollment, in Ontario, CA.
What is the Resource Investment Index for Ray Wiltsey Middle?
Ray Wiltsey Middle has a Resource Investment Index of 36/100 (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 Ray Wiltsey Middle rank among middle schools in Ontario?
By Resource Investment Index, Ray Wiltsey Middle ranks #3 of 6 middle schools in Ontario, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Ontario on the city page.
Is Ray Wiltsey Middle a good school?
Ray Wiltsey Middle earns 36/100 on the Resource Investment Index, with class sizes smaller than 78% 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 Ray Wiltsey Middle, Ontario-Montclair also operates Edison Elementary (736 students), Central Language Academy (736 students), and Oaks Middle (668 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.