Enrollment
428
California · 2024-25 NCES data
Elementary school (grades K-5) · Ontario, CA
Federal NCES profile for Del Norte Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 27/100.
The verdict
Del Norte Elementary earns 27/100 on the Resource Investment Index, with class sizes near the California median.
Del Norte Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Del Norte Elementary ranks #13 of 26 elementary schools in Ontario, CA.
NCES ID 062847004394 Verify on NCES CCD record →
Enrollment
428
California · 2024-25 NCES data
Teachers (FTE)
19.0
Federal CCD staff survey
Students per teacher
22.5:1
vs 21.5:1 California avg
+5% vs state
Free-lunch eligible
82.2%
vs 55.5% California avg
+48% vs state
How Del Norte Elementary compares with California and U.S. medians
Slightly above state median
22.5:1 - 1.0 above the California state median of 21.5:1, indicating larger average class loads than typical schools in the state.
Del Norte Elementary is a high-poverty, mid-sized elementary school in Ontario, California, enrolling 428 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 82.2% of students eligible for free meals.
With 428 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 1,880 statewide peers matched on enrollment and economic need, it ranks mid-pack at #871.
Its student body is predominantly Hispanic or Latino (86% of enrollment) (diversity index 25/100).
Chronic absenteeism is elevated: 47.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Ontario's elementary schools, it stands alongside Park View Elementary (844 students): Del Norte Elementary is smaller than that campus by headcount and runs leaner classes (22.5:1 vs 25.6:1).
Ontario-Montclair also operates Edison Elementary (736 students) and Central Language Academy (736 students) alongside Del Norte Elementary.
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
Del Norte Elementary 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 | 82.2% | ▲ 48% | 55.5% | 51.7% |
| Enrollment | 428 | top 56% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: Hispanic or Latino at 86.2% of enrollment.
Simpson diversity index - at 25.1, Del Norte Elementary is less mixed than the California school average of 46.0.
District-wide per-pupil expenditure for Ontario-Montclair, which includes Del Norte Elementary.
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.
| 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 | Similar economic need | Lower S:T ratio |
| Oaks Middle | Larger | Lower economic need | Similar S:T ratio |
| Serrano Middle | Larger | Similar economic need | Lower S:T ratio |
Comparisons are relative to Del Norte Elementary's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) serving the same city.
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.
Next steps
Verify locally before acting on Del Norte Elementary's federal record.
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.
Del Norte Elementary has 428 students enrolled. It is an elementary school in Ontario, CA.
The student-teacher ratio at Del Norte Elementary 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.
82.2% of students at Del Norte Elementary are eligible for free lunch, compared to the California average of 55.5%.
The largest demographic group at Del Norte Elementary is Hispanic or Latino at 86.2% of enrollment, in Ontario, CA.
Del Norte Elementary has a Resource Investment Index of 27/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Del Norte Elementary ranks #13 of 26 elementary 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 elementary schools in Ontario on the city page.
Del Norte Elementary earns 27/100 on the Resource Investment Index, with class sizes near the California median. 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.
Besides Del Norte Elementary, 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.
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.
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Last updated:
PlainSchools, “Del Norte Elementary, Ontario CA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/del-norte-elementary-ca
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