Enrollment
353
California · 2024-25 NCES data
Elementary school (grades K-5) · Oceanside, CA
Del Rio Elementary
Federal NCES profile for Del Rio Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 15/100.
2024-25 NCES dataElementary school (grades K-5)NCES 062825004357
👥 S:T ratio 0
🌟 Gifted program 30
🎓 Counselors 29
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Del Rio Elementary earns 15/100 on the Resource Investment Index, with class sizes larger than 95% of California schools.
- #6 of 23
- elementary schools in Oceanside · Resource Index
- 15
- Resource Index · Lower
- 29.4:1
- large classes for California
- 69.2%
- free-lunch eligible
Del Rio Elementary has class sizes larger than 95% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Del Rio Elementary ranks #6 of 23 elementary schools in Oceanside, CA.
School address
District: Oceanside Unified · California
NCES ID 062825004357 Verify on NCES CCD record →
Teachers (FTE)
12.0
Federal CCD staff survey
Students per teacher
29.4:1
vs 21.5:1 California avg
+37% vs state
Free-lunch eligible
69.2%
vs 55.5% California avg
+25% vs state
Student-teacher ratio in context
How Del Rio Elementary compares with California and U.S. medians
What stands out at Del Rio Elementary
Del Rio Elementary is a higher-need, mid-sized elementary school in Oceanside, California, enrolling 353 students.
Class loads run heavy: 29.4:1 is larger than about 95% of California schools and 37% above the 21.5:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat above the state's typical profile, with 69.2% of students eligible for free meals.
Enrollment of 353 puts it in the smaller third of California schools by headcount.
Its Resource Investment Index trails 91% of the 9,998 California schools with a score on record, one of the lower results on this measure.
Among 1,582 similarly sized, similarly resourced-need California schools statewide, it ranks #1,341, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (68%) and White (11%) (diversity index 51/100).
Counselor availability sits well past the ASCA benchmark, roughly 353 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 46.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Oceanside's elementary schools, it stands alongside Mary Fay Pendleton Elementary (820 students): Del Rio Elementary is smaller than that campus by headcount and runs heavier classes (29.4:1 vs 21.6:1).
Oceanside Unified also operates El Camino High (2,463 students) and Oceanside High (1,948 students) alongside Del Rio 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
How Del Rio Elementary compares
Del Rio 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 | 29.4:1 | ▲ 37% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 69.2% | ▲ 25% | 55.5% | 51.7% |
| Enrollment | 353 | top 67% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
29.4:1
Leaner classes than 2% of US schools, heavier class loads than most.
353
Bigger than 40% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
69.2%
free-lunch eligible
- 25% 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
29.4:1
students per teacher
- 37% above state mean
Top 95% in California - lower ratio than 5% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
46.5%
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
$16,024
per pupil, district-wide
- below California avg of $16,509
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors1.0 FTE
Per 353 students, the combined health-and-guidance staffing load for this school.
Discipline context
2
in-school suspensions + 8 out-of-school
Suspension rate: 0.6 per 100 students. Combined in-school and out-of-school rate: 2.8 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 68.0%
White 11.0%
Two or More 10.5%
Native Hawaiian / Pacific Islander 4.2%
Asian 3.4%
African American 2.5%
American Indian / Alaska Native 0.3%
Largest group: Hispanic or Latino at 68.0% of enrollment.
Student-body diversity index 51.1/100
Simpson diversity index - at 51.1, Del Rio Elementary is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Oceanside Unified, which includes Del Rio Elementary.
$16,024
Per student
-3%
vs California
Avg $16,509
-3%
vs U.S.
Avg $16,593
Revenue mix
Local 37.4%
State 48.8%
Federal 13.8%
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 Del Rio Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| El Camino High | Larger | Lower economic need | Lower S:T ratio |
| Oceanside High | Larger | Lower economic need | Lower S:T ratio |
| Martin Luther King Jr. Middle | Larger | Lower economic need | Lower S:T ratio |
| North Terrace Elementary | Larger | Lower economic need | Lower S:T ratio |
| Louise Foussat Elementary | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Del Rio Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,463
- Students per teacher
- 22.8:1
- Resource Index
- 18/100
- Enrollment
- 1,948
- Students per teacher
- 22.9:1
- Resource Index
- 15/100
- Enrollment
- 1,098
- Students per teacher
- 21.1:1
- Resource Index
- 20/100
- Enrollment
- 771
- Students per teacher
- 24.9:1
- Resource Index
- 8/100
- Enrollment
- 755
- Students per teacher
- 34.3:1
- Resource Index
- 7/100
Similar elementary schools in Oceanside
6 comparable elementary schools (grades K-5) serving the same city.
Mary Fay Pendleton Elementary
Standard public school
820 students 21.6:1 students per teacher
North Terrace Elementary
Standard public school
771 students 24.9:1 students per teacher
Louise Foussat Elementary
Standard public school
755 students 34.3:1 students per teacher
Empresa Elementary
Standard public school
705 students 25.2:1 students per teacher
Ivey Ranch Elementary
Standard public school
698 students 23.3:1 students per teacher
Lake Elementary
Standard public school
696 students 24.9:1 students per teacher
Similar elementary 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 (~353 students)
Next steps
Verify locally before acting on Del Rio Elementary's federal record.
- Compare Del Rio Elementary against another school. Compare schools
- Oceanside Unified'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 Del Rio Elementary
How many students attend Del Rio Elementary?
Del Rio Elementary has 353 students enrolled. It is an elementary school in Oceanside, CA.
What is the student-teacher ratio at Del Rio Elementary?
The student-teacher ratio at Del Rio Elementary is 29.4:1, which is 37% higher than the California average of 21.5:1 and 87% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Del Rio Elementary?
69.2% of students at Del Rio Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Del Rio Elementary?
The largest demographic group at Del Rio Elementary is Hispanic or Latino at 68.0% of enrollment, in Oceanside, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 51.1/100.
What is the Resource Investment Index for Del Rio Elementary?
Del Rio Elementary has a Resource Investment Index of 15/100 (lower 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 Del Rio Elementary rank among elementary schools in Oceanside?
By Resource Investment Index, Del Rio Elementary ranks #6 of 23 elementary schools in Oceanside, 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 Oceanside on the city page.
Is Del Rio Elementary a good school?
Del Rio Elementary earns 15/100 on the Resource Investment Index, with class sizes larger than 95% of 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 Oceanside Unified?
Besides Del Rio Elementary, Oceanside Unified also operates El Camino High (2,463 students), Oceanside High (1,948 students), and Martin Luther King Jr. Middle (1,098 students). See the Oceanside Unified 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.