- Enrollment
- 1,911
- Students per teacher
- 26.2:1
- Resource Index
- 42/100
Elementary school (grades K-5) · San Dimas, CA
Arma J. Shull Elementary
Federal NCES profile for Arma J. Shull Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
2024-25 NCES dataElementary school (grades K-5)NCES 060561000504
👥 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
Arma J. Shull Elementary earns 30/100 on the Resource Investment Index, with class sizes larger than 91% of California schools. It is also more racially and ethnically mixed than most California schools.
- #1 of 4
- elementary schools in San Dimas · Resource Index
- 30
- Resource Index · Lower
- 27.5:1
- large classes for California
- 26.8%
- free-lunch eligible
Arma J. Shull Elementary has class sizes larger than 91% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Arma J. Shull Elementary ranks #1 of 4 elementary schools in San Dimas, CA.
School address
District: Bonita Unified · California
NCES ID 060561000504 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+16 students YoY
Arma J. Shull Elementary held near 646 students from 2022-23 to 2023-24 (+16 headcount).
Teacher FTE lost 23.6 → 22.8 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+16 students YoY 060561000504 · San Dimas, CA Elementary · MID · TRAD
633 enr · 27.5:1 · 26.8% lunch · RII 30
Nearest enrollment peer: Bonita High (1,911 students)
Arma J. Shull Elementary held near 646 students from 2022-23 to 2023-24 (+16 headcount). Teacher FTE lost 23.6 → 22.8 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Arma J. Shull Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Bonita High
Bonita High
1,911 students
- Ramona Middle
Ramona Middle
1,371 students
- San Dimas High
San Dimas High
1,235 students
- Lone Hill Midd
Lone Hill Middle
870 students
- J. Marion Royn
J. Marion Roynon Elementary
842 students
- This school 633
Arma J. Shull Elementary
633 students
What this shows Arma J. Shull Elementary reports 633 students on the CCD universe file.
How Arma J. Shull Elementary compares
Arma J. Shull 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 | 27.5:1 | ▲ 28% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 26.8% | ▼ 52% | 55.5% | 51.7% |
| Enrollment | 633 | top 29% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
27.5:1
Leaner classes than 3% of US schools, heavier class loads than most.
633
Bigger than 75% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
26.8%
free-lunch eligible
- 52% 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
27.5:1
students per teacher
- 28% above state mean
Top 91% in California - lower ratio than 9% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
19.6%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$14,509
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
Counselors0.6 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
14
in-school suspensions + 1 out-of-school
Suspension rate: 2.2 per 100 students. Combined in-school and out-of-school rate: 2.4 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 48.0%
Asian 22.0%
White 19.0%
Two or More 10.3%
African American 0.8%
Largest group: Hispanic or Latino at 48.0% of enrollment.
Student-body diversity index 67.4/100
Simpson diversity index - at 67.4, Arma J. Shull Elementary is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
District finance for Bonita Unified reports $14,509 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Arma J. Shull Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Bonita High | Larger | Similar economic need | Similar S:T ratio |
| Ramona Middle | Larger | Similar economic need | Similar S:T ratio |
| San Dimas High | Larger | Similar economic need | Lower S:T ratio |
| Lone Hill Middle | Larger | Higher economic need | Lower S:T ratio |
| J. Marion Roynon Elementary | Larger | Higher economic need | Lower S:T ratio |
Comparisons are relative to Arma J. Shull Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,371
- Students per teacher
- 26.9:1
- Resource Index
- 41/100
- Enrollment
- 1,235
- Students per teacher
- 20.6:1
- Resource Index
- 44/100
- Enrollment
- 870
- Students per teacher
- 24.2:1
- Resource Index
- 44/100
- Enrollment
- 842
- Students per teacher
- 24.8:1
- Resource Index
- 28/100
Similar elementary schools in San Dimas
3 comparable elementary schools (grades K-5) serving the same city.
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 (~633 students)
Frequently asked questions about Arma J. Shull Elementary
How many students attend Arma J. Shull Elementary?
Arma J. Shull Elementary has 633 students enrolled. It is an elementary school in San Dimas, CA. CCD year-over-year: 630 (2022-23) → 646 (2023-24), nearly flat (+16).
What is the student-teacher ratio at Arma J. Shull Elementary?
The student-teacher ratio at Arma J. Shull Elementary is 27.5:1, which is 28% higher than the California average of 21.5:1 and 75% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Arma J. Shull Elementary?
26.8% of students at Arma J. Shull Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Arma J. Shull Elementary?
The largest demographic group at Arma J. Shull Elementary is Hispanic or Latino at 48.0% of enrollment, in San Dimas, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.4/100.
What is the Resource Investment Index for Arma J. Shull Elementary?
Arma J. Shull Elementary has a Resource Investment Index of 30/100 (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 Arma J. Shull Elementary rank among elementary schools in San Dimas?
By Resource Investment Index, Arma J. Shull Elementary ranks #1 of 4 elementary schools in San Dimas, 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 San Dimas on the city page.
What other schools are in Bonita Unified?
Besides Arma J. Shull Elementary, Bonita Unified also operates Bonita High (1,911 students), Ramona Middle (1,371 students), and San Dimas High (1,235 students). See the Bonita Unified district page for the complete list.