Enrollment
839
California · 2024-25 NCES data
Elementary school (grades K-5) · Oxnard, CA
Rio Del Sol
Federal NCES profile for Rio Del Sol, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
2024-25 NCES dataElementary school (grades K-5)NCES 063276014252
👥 S:T ratio 0
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 51
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Rio Del Sol earns 30/100 on the Resource Investment Index, with class sizes larger than 82% of California schools.
- #7 of 32
- elementary schools in Oxnard · Resource Index
- 30
- Resource Index · Lower
- 25.4:1
- large classes for California
- 30.0%
- free-lunch eligible
Rio Del Sol has class sizes larger than 82% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Rio Del Sol ranks #7 of 32 elementary schools in Oxnard, CA.
School address
District: Rio Elementary · California
NCES ID 063276014252 Verify on NCES CCD record →
Teachers (FTE)
33.0
Federal CCD staff survey
Students per teacher
25.4:1
vs 21.5:1 California avg
+18% vs state
Free-lunch eligible
30.0%
vs 55.5% California avg
-46% vs state
Student-teacher ratio in context
How Rio Del Sol compares with California and U.S. medians
What stands out at Rio Del Sol
Rio Del Sol is a mid-sized elementary school in Oxnard, California, enrolling 839 students.
Class loads run somewhat heavier than typical: 25.4:1 puts it in the larger third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 30.0% of students eligible for free meals.
Enrollment of 839 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 1,121 statewide peers matched on enrollment and economic need, it ranks mid-pack at #638.
Its student body is led by Hispanic or Latino (67%) and White (12%) (diversity index 52/100).
Counselor access is stretched at roughly 1398 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance runs somewhat below the norm, with 19.7% of students chronically absent per the 2021-22 civil-rights collection.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Among Oxnard's elementary schools, it stands alongside Juan Lagunas Soria Elementary (895 students): Rio Del Sol is smaller than that campus by headcount and runs heavier classes (25.4:1 vs 22.9:1).
Rio Elementary also operates Rio Real Elementary (794 students) and Rio Vista Middle (637 students) alongside Rio Del Sol.
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 Rio Del Sol compares
Rio Del Sol on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 25.4:1 | ▲ 18% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 30.0% | ▼ 46% | 55.5% | 51.7% |
| Enrollment | 839 | top 16% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
25.4:1
Leaner classes than 5% of US schools, heavier class loads than most.
839
Bigger than 87% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
30.0%
free-lunch eligible
- 46% below the California average of 55.5%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
25.4:1
students per teacher
- 18% above state mean
Top 82% in California - lower ratio than 18% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
19.7%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$15,938
per pupil, district-wide
- below California avg of $16,509
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors0.6 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
6
in-school suspensions + 15 out-of-school
Suspension rate: 0.7 per 100 students. Combined in-school and out-of-school rate: 2.5 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
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 66.5%
White 12.4%
Asian 11.6%
Two or More 6.6%
African American 2.7%
American Indian / Alaska Native 0.2%
Largest group: Hispanic or Latino at 66.5% of enrollment.
Student-body diversity index 52.4/100
Simpson diversity index - at 52.4, Rio Del Sol is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Rio Elementary, which includes Rio Del Sol.
$15,938
Per student
-3%
vs California
Avg $16,509
-4%
vs U.S.
Avg $16,593
Revenue mix
Local 32.2%
State 57.4%
Federal 10.3%
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 Rio Del Sol Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Rio Real Elementary | Similar size | Higher economic need | Similar S:T ratio |
| Rio Vista Middle | Similar size | Higher economic need | Lower S:T ratio |
| Rio Del Valle Middle | Smaller | Higher economic need | Lower S:T ratio |
| Rio Rosales | Smaller | Higher economic need | Similar S:T ratio |
| Rio Del Mar | Smaller | Higher economic need | Higher S:T ratio |
Comparisons are relative to Rio Del Sol's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 794
- Students per teacher
- 24.8:1
- Resource Index
- 30/100
- Enrollment
- 637
- Students per teacher
- 19.9:1
- Resource Index
- 29/100
- Enrollment
- 569
- Students per teacher
- 17.2:1
- Resource Index
- 35/100
- Enrollment
- 557
- Students per teacher
- 24.2:1
- Resource Index
- 11/100
- Enrollment
- 499
- Students per teacher
- 31.2:1
- Resource Index
- 30/100
Similar elementary schools in Oxnard
6 comparable elementary schools (grades K-5) serving the same city.
Juan Lagunas Soria Elementary
Standard public school
895 students 22.9:1 students per teacher
Driffill Elementary
Standard public school
891 students 17.5:1 students per teacher
Kamala Elementary
Standard public school
842 students 20.5:1 students per teacher
Curren Elementary
Standard public school
817 students 18.2:1 students per teacher
Lemonwood Elementary
Standard public school
808 students 18.4:1 students per teacher
Rio Real Elementary
Standard public school
794 students 24.8:1 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 (~839 students)
Similar student-teacher ratio (~25.4:1)
Next steps
Verify locally before acting on Rio Del Sol's federal record.
- Compare Rio Del Sol against another school. Compare schools
- Rio Elementary'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 Rio Del Sol
How many students attend Rio Del Sol?
Rio Del Sol has 839 students enrolled. It is an elementary school in Oxnard, CA.
What is the student-teacher ratio at Rio Del Sol?
The student-teacher ratio at Rio Del Sol is 25.4:1, which is 18% higher than the California average of 21.5:1 and 62% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Rio Del Sol?
30.0% of students at Rio Del Sol are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Rio Del Sol?
The largest demographic group at Rio Del Sol is Hispanic or Latino at 66.5% of enrollment, in Oxnard, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 52.4/100.
What is the Resource Investment Index for Rio Del Sol?
Rio Del Sol has a Resource Investment Index of 30/100 (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 Rio Del Sol rank among elementary schools in Oxnard?
By Resource Investment Index, Rio Del Sol ranks #7 of 32 elementary schools in Oxnard, 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 Oxnard on the city page.
Is Rio Del Sol a good school?
Rio Del Sol earns 30/100 on the Resource Investment Index, with class sizes larger than 82% 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 Rio Elementary?
Besides Rio Del Sol, Rio Elementary also operates Rio Real Elementary (794 students), Rio Vista Middle (637 students), and Rio Del Valle Middle (569 students). See the Rio Elementary 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.