Enrollment
553
California · 2024-25 NCES data
Elementary school (grades K-5) · Fillmore, CA
Rio Vista Elementary
Federal NCES profile for Rio Vista Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 17/100.
2024-25 NCES dataElementary school (grades K-5)NCES 061380001558
👥 S:T ratio 4
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 36
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Rio Vista Elementary earns 17/100 on the Resource Investment Index, with class sizes larger than 71% of California schools.
- #2 of 3
- elementary schools in Fillmore · Resource Index
- 17
- Resource Index · Lower
- 24:1
- large classes for California
- 47.5%
- free-lunch eligible
Rio Vista Elementary has class sizes larger than 71% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Rio Vista Elementary ranks #2 of 3 elementary schools in Fillmore, CA.
School address
District: Fillmore Unified · California
NCES ID 061380001558 Verify on NCES CCD record →
Teachers (FTE)
23.0
Federal CCD staff survey
Students per teacher
24:1
vs 21.5:1 California avg
+12% vs state
Free-lunch eligible
47.5%
vs 55.5% California avg
-14% vs state
Student-teacher ratio in context
How Rio Vista Elementary compares with California and U.S. medians
What stands out at Rio Vista Elementary
Rio Vista Elementary is a mid-sized elementary school in Fillmore, California, enrolling 553 students.
Class loads run somewhat heavier than typical: 24:1 puts it in the larger third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 47.5% of students eligible for free meals.
With 553 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Among 1,465 similarly sized, similarly resourced-need California schools statewide, it ranks #1,185, in the lower tier once campus size and economic need are matched.
Its student body is predominantly Hispanic or Latino (84% of enrollment) (diversity index 29/100).
Counselor access is stretched at roughly 553 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 25.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Fillmore's elementary schools, it stands alongside San Cayetano Elementary (514 students): Rio Vista Elementary is larger than that campus by headcount and runs heavier classes (24:1 vs 22.3:1).
Fillmore Unified also operates Fillmore Senior High (1,007 students) and Fillmore Middle (813 students) alongside Rio Vista 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 Rio Vista Elementary compares
Rio Vista 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 | 24:1 | ▲ 12% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 47.5% | ▼ 14% | 55.5% | 51.7% |
| Enrollment | 553 | top 38% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
24:1
Leaner classes than 6% of US schools, heavier class loads than most.
553
Bigger than 68% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
47.5%
free-lunch eligible
- 14% below the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
24:1
students per teacher
- 12% above state mean
Top 71% in California - lower ratio than 29% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
25.7%
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
$17,369
per pupil, district-wide
- above California avg of $16,509
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors1.0 FTE
Per 553 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 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 83.5%
White 9.4%
Asian 3.1%
Two or More 2.0%
African American 1.3%
American Indian / Alaska Native 0.7%
Largest group: Hispanic or Latino at 83.5% of enrollment.
Student-body diversity index 29.2/100
Simpson diversity index - at 29.2, Rio Vista Elementary is less mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Fillmore Unified, which includes Rio Vista Elementary.
$17,369
Per student
+5%
vs California
Avg $16,509
+5%
vs U.S.
Avg $16,593
Revenue mix
Local 23.5%
State 62.6%
Federal 13.9%
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 Vista Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Fillmore Senior High | Larger | Higher economic need | Lower S:T ratio |
| Fillmore Middle | Larger | Higher economic need | Lower S:T ratio |
| San Cayetano Elementary | Similar size | Higher economic need | Lower S:T ratio |
| Mountain Vista | Similar size | Higher economic need | Lower S:T ratio |
| Piru Elementary | Smaller | Higher economic need | Similar S:T ratio |
Comparisons are relative to Rio Vista Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,007
- Students per teacher
- 19.7:1
- Resource Index
- 40/100
- Enrollment
- 813
- Students per teacher
- 21.4:1
- Resource Index
- 40/100
- Enrollment
- 514
- Students per teacher
- 22.3:1
- Resource Index
- 15/100
- Enrollment
- 430
- Students per teacher
- 17.2:1
- Resource Index
- 19/100
- Enrollment
- 272
- Students per teacher
- 22.7:1
- Resource Index
- 28/100
Similar elementary schools in Fillmore
2 comparable elementary schools (grades K-5) serving the same city.
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 (~553 students)
Next steps
Verify locally before acting on Rio Vista Elementary's federal record.
- Compare Rio Vista Elementary against another school. Compare schools
- Fillmore 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 Rio Vista Elementary
How many students attend Rio Vista Elementary?
Rio Vista Elementary has 553 students enrolled. It is an elementary school in Fillmore, CA.
What is the student-teacher ratio at Rio Vista Elementary?
The student-teacher ratio at Rio Vista Elementary is 24:1, which is 12% higher than the California average of 21.5:1 and 53% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Rio Vista Elementary?
47.5% of students at Rio Vista Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Rio Vista Elementary?
The largest demographic group at Rio Vista Elementary is Hispanic or Latino at 83.5% of enrollment, in Fillmore, CA.
What is the Resource Investment Index for Rio Vista Elementary?
Rio Vista Elementary has a Resource Investment Index of 17/100 (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 Vista Elementary rank among elementary schools in Fillmore?
By Resource Investment Index, Rio Vista Elementary ranks #2 of 3 elementary schools in Fillmore, 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 Fillmore on the city page.
Is Rio Vista Elementary a good school?
Rio Vista Elementary earns 17/100 on the Resource Investment Index, with class sizes larger than 71% 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 Fillmore Unified?
Besides Rio Vista Elementary, Fillmore Unified also operates Fillmore Senior High (1,007 students), Fillmore Middle (813 students), and San Cayetano Elementary (514 students). See the Fillmore 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.