- Enrollment
- 1,910
- Students per teacher
- 23.3:1
- Resource Index
- 37/100
Elementary school (grades K-5) · Simi Valley, CA
Arroyo Elementary
Federal NCES profile for Arroyo Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 12/100.
2024-25 NCES dataElementary school (grades K-5)NCES 063684010712
👥 S:T ratio 4
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 15
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Arroyo Elementary earns 12/100 on the Resource Investment Index, with class sizes larger than 71% of California schools.
- #18 of 19
- elementary schools in Simi Valley · Resource Index
- 12
- Resource Index · Lower
- 24:1
- large classes for California
- 60.2%
- free-lunch eligible
Arroyo Elementary has class sizes larger than 71% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Arroyo Elementary ranks #18 of 19 elementary schools in Simi Valley, CA.
School address
District: Simi Valley Unified · California
NCES ID 063684010712 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-9 students YoY
Arroyo Elementary held near 235 students from 2022-23 to 2023-24 (-9 headcount).
Teacher FTE lost 11.0 → 10.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-9 students YoY 063684010712 · Simi Valley, CA Elementary · SMALL · TRAD
264 enr · 24:1 · 60.2% lunch · RII 12
Nearest enrollment peer: Simi Valley High (1,910 students)
Arroyo Elementary held near 235 students from 2022-23 to 2023-24 (-9 headcount). Teacher FTE lost 11.0 → 10.0 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Arroyo Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Simi Valley Hi
Simi Valley High
1,910 students
- Royal High
Royal High
1,835 students
- Valley View Mi
Valley View Middle
1,329 students
- Hillside Middl
Hillside Middle
1,138 students
- Santa Susana H
Santa Susana High
1,033 students
- This school 264
Arroyo Elementary
264 students
What this shows Arroyo Elementary reports 264 students on the CCD universe file.
How Arroyo Elementary compares
Arroyo Elementary held steady on CCD headcount: ratios and free-lunch share vs 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 | 60.2% | ▲ 8% | 55.5% | 51.7% |
| Enrollment | 264 | top 78% | - | - |
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.
264
Bigger than 27% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
60.2%
free-lunch eligible
- 8% 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
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
34.1%
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
$15,349
per pupil, district-wide
- below California avg of $18,665
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.4 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
3
in-school suspensions + 11 out-of-school
Suspension rate: 1.1 per 100 students. Combined in-school and out-of-school rate: 5.3 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 80.3%
White 12.1%
Two or More 3.8%
Asian 2.7%
African American 0.8%
Native Hawaiian / Pacific Islander 0.4%
Largest group: Hispanic or Latino at 80.3% of enrollment.
Student-body diversity index 33.8/100
Simpson diversity index - at 33.8, Arroyo Elementary is less mixed than the California school average of 46.0.
Programs
District finance for Simi Valley Unified reports $15,349 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Arroyo Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Simi Valley High | Larger | Lower economic need | Similar S:T ratio |
| Royal High | Larger | Lower economic need | Lower S:T ratio |
| Valley View Middle | Larger | Lower economic need | Higher S:T ratio |
| Hillside Middle | Larger | Lower economic need | Higher S:T ratio |
| Santa Susana High | Larger | Lower economic need | Similar S:T ratio |
Comparisons are relative to Arroyo Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,835
- Students per teacher
- 20.6:1
- Resource Index
- 38/100
- Enrollment
- 1,329
- Students per teacher
- 30.2:1
- Resource Index
- 31/100
- Enrollment
- 1,138
- Students per teacher
- 29.9:1
- Resource Index
- 33/100
- Enrollment
- 1,033
- Students per teacher
- 23:1
- Resource Index
- 47/100
Similar elementary schools in Simi Valley
6 comparable elementary schools (grades K-5) serving the same city.
Vista Elementary
Standard public school
567 students 22.7:1 students per teacher
Hollow Hills Elementary
Standard public school
560 students 21.5:1 students per teacher
Township Elementary
Standard public school
521 students 21.7:1 students per teacher
Berylwood Elementary
Standard public school
457 students 21.8:1 students per teacher
Atherwood Elementary
Standard public school
456 students 21.7:1 students per teacher
Wood Ranch Elementary
Standard public school
452 students 22.6:1 students per teacher
Nationwide elementary schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~264 students)
Frequently asked questions about Arroyo Elementary
How many students attend Arroyo Elementary?
Arroyo Elementary has 264 students enrolled. It is an elementary school in Simi Valley, CA. CCD year-over-year: 244 (2022-23) → 235 (2023-24), nearly flat (-9).
What is the student-teacher ratio at Arroyo Elementary?
The student-teacher ratio at Arroyo 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 Arroyo Elementary?
60.2% of students at Arroyo Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Arroyo Elementary?
The largest demographic group at Arroyo Elementary is Hispanic or Latino at 80.3% of enrollment, in Simi Valley, CA.
What is the Resource Investment Index for Arroyo Elementary?
Arroyo Elementary has a Resource Investment Index of 12/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Arroyo Elementary rank among elementary schools in Simi Valley?
By Resource Investment Index, Arroyo Elementary ranks #18 of 19 elementary schools in Simi Valley, 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 Simi Valley on the city page.
What other schools are in Simi Valley Unified?
Besides Arroyo Elementary, Simi Valley Unified also operates Simi Valley High (1,910 students), Royal High (1,835 students), and Valley View Middle (1,329 students). See the Simi Valley Unified district page for the complete list.