Enrollment
913
California · 2024-25 NCES data
Elementary school (grades K-5) · Santee, CA
Rio Seco Elementary
Federal NCES profile for Rio Seco Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 27/100.
2024-25 NCES dataElementary school (grades K-5)NCES 063588006144
👥 S:T ratio 6
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 30
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Rio Seco Elementary earns 27/100 on the Resource Investment Index, with class sizes near the California median.
- #6 of 10
- elementary schools in Santee · Resource Index
- 27
- Resource Index · Lower
- 23.4:1
- students per teacher
- 28.5%
- free-lunch eligible
Rio Seco Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Rio Seco Elementary ranks #6 of 10 elementary schools in Santee, CA.
School address
Teachers (FTE)
39.0
Federal CCD staff survey
Students per teacher
23.4:1
vs 21.5:1 California avg
+9% vs state
Free-lunch eligible
28.5%
vs 55.5% California avg
-49% vs state
Student-teacher ratio in context
How Rio Seco Elementary compares with California and U.S. medians
What stands out at Rio Seco Elementary
Rio Seco Elementary is a large elementary school in Santee, California, enrolling 913 students.
Class loads run somewhat heavier than typical: 23.4:1 puts it in the larger third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 28.5% of students eligible for free meals.
Enrollment of 913 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.
Among 996 similarly sized, similarly resourced-need California schools statewide, it ranks #705, in the lower tier once campus size and economic need are matched.
Its student body is led by White (51%) and Hispanic or Latino (27%) (diversity index 65/100).
Counselor access is stretched at roughly 913 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 28.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Santee spends $13,289 per pupil, 20% below the California average, a leaner-resourced district than most.
The federal civil-rights collection also records 3 expulsions at this campus for 2021-22.
Among Santee's elementary schools, it stands alongside Cajon Park Elementary (830 students): Rio Seco Elementary is larger than that campus by headcount and runs heavier classes (23.4:1 vs 23.1:1).
Santee also operates Cajon Park Elementary (830 students) and Carlton Oaks Elementary (823 students) alongside Rio Seco 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 Seco Elementary compares
Rio Seco 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 | 23.4:1 | ▲ 9% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 28.5% | ▼ 49% | 55.5% | 51.7% |
| Enrollment | 913 | top 13% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
23.4:1
Leaner classes than 7% of US schools, heavier class loads than most.
913
Bigger than 89% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
28.5%
free-lunch eligible
- 49% 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
23.4:1
students per teacher
- 9% above state mean
Top 66% in California - lower ratio than 34% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
28.0%
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
$13,289
per pupil, district-wide
- below California avg of $16,509
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 913 students, the combined health-and-guidance staffing load for this school.
Discipline context
24
in-school suspensions + 15 out-of-school
Suspension rate: 2.6 per 100 students. Combined in-school and out-of-school rate: 4.3 per 100 students. Reported via the Civil Rights Data Collection. Includes 3 expulsions.
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
White 50.9%
Hispanic or Latino 26.9%
Two or More 12.5%
Asian 8.2%
African American 0.8%
Native Hawaiian / Pacific Islander 0.7%
Largest group: White at 50.9% of enrollment.
Student-body diversity index 64.6/100
Simpson diversity index - at 64.6, Rio Seco Elementary is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Santee, which includes Rio Seco Elementary.
$13,289
Per student
-20%
vs California
Avg $16,509
-20%
vs U.S.
Avg $16,593
Revenue mix
Local 35.8%
State 54.5%
Federal 9.7%
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 Seco Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Cajon Park Elementary | Similar size | Similar economic need | Similar S:T ratio |
| Carlton Oaks Elementary | Similar size | Similar economic need | Similar S:T ratio |
| Hill Creek Elementary | Similar size | Similar economic need | Similar S:T ratio |
| Pepper Drive Elementary | Smaller | Higher economic need | Similar S:T ratio |
| Chet F. Harritt Elementary | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Rio Seco Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 830
- Students per teacher
- 23.1:1
- Resource Index
- 27/100
- Enrollment
- 823
- Students per teacher
- 22.2:1
- Resource Index
- 35/100
- Enrollment
- 695
- Students per teacher
- 24:1
- Resource Index
- 26/100
- Enrollment
- 661
- Students per teacher
- 23.6:1
- Resource Index
- 19/100
- Enrollment
- 606
- Students per teacher
- 24.2:1
- Resource Index
- 29/100
Similar elementary schools in Santee
6 comparable elementary schools (grades K-5) serving the same city.
Cajon Park Elementary
Standard public school
830 students 23.1:1 students per teacher
Carlton Oaks Elementary
Standard public school
823 students 22.2:1 students per teacher
Hill Creek Elementary
Standard public school
695 students 24:1 students per teacher
Chet F. Harritt Elementary
Standard public school
606 students 24.2:1 students per teacher
Carlton Hills Elementary
Standard public school
601 students 23.1:1 students per teacher
Pride Academy at Prospect Avenue
Standard public school
548 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 (~913 students)
Similar student-teacher ratio (~23.4:1)
Next steps
Verify locally before acting on Rio Seco Elementary's federal record.
- Compare Rio Seco Elementary against another school. Compare schools
- Santee'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 Seco Elementary
How many students attend Rio Seco Elementary?
Rio Seco Elementary has 913 students enrolled. It is an elementary school in Santee, CA.
What is the student-teacher ratio at Rio Seco Elementary?
The student-teacher ratio at Rio Seco Elementary is 23.4:1, which is 9% higher than the California average of 21.5:1 and 49% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Rio Seco Elementary?
28.5% of students at Rio Seco Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Rio Seco Elementary?
The largest demographic group at Rio Seco Elementary is White at 50.9% of enrollment, in Santee, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 64.6/100.
What is the Resource Investment Index for Rio Seco Elementary?
Rio Seco Elementary has a Resource Investment Index of 27/100 (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 Seco Elementary rank among elementary schools in Santee?
By Resource Investment Index, Rio Seco Elementary ranks #6 of 10 elementary schools in Santee, 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 Santee on the city page.
Is Rio Seco Elementary a good school?
Rio Seco 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.
What other schools are in Santee?
Besides Rio Seco Elementary, Santee also operates Cajon Park Elementary (830 students), Carlton Oaks Elementary (823 students), and Hill Creek Elementary (695 students). See the Santee 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.