Enrollment
510
California · 2024-25 NCES data
Middle school (grades 6-8) · Ontario, CA
De Anza Middle
Federal NCES profile for De Anza Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 062847004393
👥 S:T ratio 38
🌟 Gifted program 70
🎓 Counselors 49
📋 Attendance 9
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
De Anza Middle earns 41/100 on the Resource Investment Index, with class sizes smaller than 88% of California schools. It is also less racially and ethnically mixed than most California schools.
- #2 of 6
- middle schools in Ontario · Resource Index
- 41
- Resource Index · Typical
- 15.5:1
- small classes for California
- 71.3%
- free-lunch eligible
De Anza Middle has class sizes smaller than 88% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, De Anza Middle ranks #2 of 6 middle schools in Ontario, CA.
School address
District: Ontario-Montclair · California
NCES ID 062847004393 Verify on NCES CCD record →
Teachers (FTE)
33.0
Federal CCD staff survey
Students per teacher
15.5:1
vs 21.5:1 California avg
-28% vs state
Free-lunch eligible
71.3%
vs 55.5% California avg
+28% vs state
Student-teacher ratio in context
How De Anza Middle compares with California and U.S. medians
What stands out at De Anza Middle
De Anza Middle is a higher-need, mid-sized middle school in Ontario, California, enrolling 510 students.
Classes run notably small here: at 15.5:1, De Anza Middle is leaner than roughly 88% of California schools and 28% under the state's 21.5:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat above the state's typical profile, with 71.3% of students eligible for free meals.
With 510 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Among 2,169 similarly sized, similarly resourced-need California schools statewide, it ranks #126, a top-tier result once campus size and economic need are matched.
Its student body is predominantly Hispanic or Latino (92% of enrollment), among the less diverse in the state (diversity index 16/100).
Counselor coverage runs a bit thin, about 255 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 36.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Ontario's middle schools, it stands alongside Ray Wiltsey Middle (727 students): De Anza Middle is smaller than that campus by headcount and runs leaner classes (15.5:1 vs 18.2:1).
Ontario-Montclair also operates Edison Elementary (736 students) and Central Language Academy (736 students) alongside De Anza 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 De Anza Middle compares
De Anza 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 | 15.5:1 | ▼ 28% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 71.3% | ▲ 28% | 55.5% | 51.7% |
| Enrollment | 510 | top 44% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.5:1
Leaner classes than 42% of US schools, a middle-of-the-pack class size.
510
Bigger than 63% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
71.3%
free-lunch eligible
- 28% 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
15.5:1
students per teacher
- 28% below state mean
Top 12% in California - lower ratio than 88% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
36.5%
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
Counselors2.0 FTE
Per 255 students, the combined health-and-guidance staffing load for this school.
Discipline context
1
in-school suspensions + 42 out-of-school
Suspension rate: 0.2 per 100 students. Combined in-school and out-of-school rate: 8.4 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
Hispanic or Latino 91.6%
African American 2.7%
Asian 2.5%
White 1.6%
Native Hawaiian / Pacific Islander 0.6%
Two or More 0.6%
American Indian / Alaska Native 0.4%
Largest group: Hispanic or Latino at 91.6% of enrollment.
Student-body diversity index 15.9/100
Simpson diversity index - at 15.9, De Anza 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 De Anza 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 De Anza Middle Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Edison Elementary | Larger | Lower economic need | Higher S:T ratio |
| Central Language Academy | Larger | Lower economic need | Higher S:T ratio |
| Ray Wiltsey Middle | Larger | Higher economic need | Higher S:T ratio |
| Oaks Middle | Larger | Similar economic need | Higher S:T ratio |
| Serrano Middle | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to De Anza 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
- 657
- Students per teacher
- 17.3:1
- Resource Index
- 34/100
Similar middle schools in Ontario
5 comparable middle schools (grades 6-8) serving the same city.
Ray Wiltsey Middle
Standard public school
727 students 18.2:1 students per teacher
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
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 (~510 students)
Next steps
Verify locally before acting on De Anza Middle's federal record.
- Compare De Anza 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 De Anza Middle
How many students attend De Anza Middle?
De Anza Middle has 510 students enrolled. It is a middle school in Ontario, CA.
What is the student-teacher ratio at De Anza Middle?
The student-teacher ratio at De Anza Middle is 15.5:1, which is 28% lower than the California average of 21.5:1 and 1% lower 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 De Anza Middle?
71.3% of students at De Anza Middle are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of De Anza Middle?
The largest demographic group at De Anza Middle is Hispanic or Latino at 91.6% of enrollment, in Ontario, CA.
What is the Resource Investment Index for De Anza Middle?
De Anza Middle has a Resource Investment Index of 41/100 (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 De Anza Middle rank among middle schools in Ontario?
By Resource Investment Index, De Anza Middle ranks #2 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 De Anza Middle a good school?
De Anza Middle earns 41/100 on the Resource Investment Index, with class sizes smaller than 88% 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 De Anza 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.