Enrollment
569
California · 2024-25 NCES data
Elementary school (grades K-5) · Glendora, CA
Cullen Elementary
Federal NCES profile for Cullen Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 32/100.
2024-25 NCES dataElementary school (grades K-5)NCES 061527001952
👥 S:T ratio 1
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 58
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Cullen Elementary earns 32/100 on the Resource Investment Index, with class sizes larger than 77% of California schools. It is also more racially and ethnically mixed than most California schools.
- #3 of 7
- elementary schools in Glendora · Resource Index
- 32
- Resource Index · Typical
- 24.7:1
- large classes for California
- 25.0%
- free-lunch eligible
Cullen Elementary has class sizes larger than 77% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Cullen Elementary ranks #3 of 7 elementary schools in Glendora, CA.
School address
District: Glendora Unified · California
NCES ID 061527001952 Verify on NCES CCD record →
Teachers (FTE)
23.0
Federal CCD staff survey
Students per teacher
24.7:1
vs 21.5:1 California avg
+15% vs state
Free-lunch eligible
25.0%
vs 55.5% California avg
-55% vs state
Student-teacher ratio in context
How Cullen Elementary compares with California and U.S. medians
What stands out at Cullen Elementary
Cullen Elementary is a mid-sized elementary school in Glendora, California, enrolling 569 students.
Class loads run somewhat heavier than typical: 24.7:1 puts it in the larger third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 25.0% of students eligible for free meals.
With 569 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 1,372 statewide peers matched on enrollment and economic need, it ranks mid-pack at #753.
Its student body is led by Hispanic or Latino (45%) and White (29%), more mixed than most schools in the state (diversity index 68/100).
Counselor access is stretched at roughly 569 students per counselor, well above the ASCA-recommended 250:1 ceiling.
16.9% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Glendora Unified spends $12,502 per pupil, 24% below the California average, a leaner-resourced district than most.
Among Glendora's elementary schools, it stands alongside La Fetra Elementary (613 students): Cullen Elementary is smaller than that campus by headcount and runs leaner classes (24.7:1 vs 27.9:1).
Glendora Unified also operates Glendora High (2,069 students) and Goddard Middle (728 students) alongside Cullen 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 Cullen Elementary compares
Cullen 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 | 24.7:1 | ▲ 15% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 25.0% | ▼ 55% | 55.5% | 51.7% |
| Enrollment | 569 | top 36% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
24.7:1
Leaner classes than 5% of US schools, heavier class loads than most.
569
Bigger than 70% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
25.0%
free-lunch eligible
- 55% below the California average of 55.5%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
24.7:1
students per teacher
- 15% above state mean
Top 77% in California - lower ratio than 23% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
16.9%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$12,502
per pupil, district-wide
- below California avg of $16,509
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 569 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 45.2%
White 28.6%
Asian 18.6%
Two or More 6.3%
African American 1.1%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 45.2% of enrollment.
Student-body diversity index 67.5/100
Simpson diversity index - at 67.5, Cullen Elementary is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Glendora Unified, which includes Cullen Elementary.
$12,502
Per student
-24%
vs California
Avg $16,509
-25%
vs U.S.
Avg $16,593
Revenue mix
Local 30.5%
State 61.3%
Federal 8.2%
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 Cullen Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Glendora High | Larger | Similar economic need | Lower S:T ratio |
| Goddard Middle | Larger | Similar economic need | Similar S:T ratio |
| Sandburg Middle | Similar size | Higher economic need | Lower S:T ratio |
| La Fetra Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Stanton Elementary | Similar size | Higher economic need | Similar S:T ratio |
Comparisons are relative to Cullen Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,069
- Students per teacher
- 22.7:1
- Resource Index
- 44/100
- Enrollment
- 728
- Students per teacher
- 25.1:1
- Resource Index
- 46/100
- Enrollment
- 695
- Students per teacher
- 23.2:1
- Resource Index
- 32/100
- Enrollment
- 613
- Students per teacher
- 27.9:1
- Resource Index
- 28/100
- Enrollment
- 551
- Students per teacher
- 24:1
- Resource Index
- 27/100
Similar elementary schools in Glendora
6 comparable elementary schools (grades K-5) serving the same city.
La Fetra Elementary
Standard public school
613 students 27.9:1 students per teacher
Stanton Elementary
Standard public school
551 students 24:1 students per teacher
Sellers Elementary
Standard public school
545 students 24.8:1 students per teacher
Sutherland Elementary
Standard public school
488 students 24.4:1 students per teacher
Washington Elementary
Standard public school
421 students 28.1:1 students per teacher
Willow Elementary
Standard public school
388 students 21.6:1 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 (~569 students)
Next steps
Verify locally before acting on Cullen Elementary's federal record.
- Compare Cullen Elementary against another school. Compare schools
- Glendora 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 Cullen Elementary
How many students attend Cullen Elementary?
Cullen Elementary has 569 students enrolled. It is an elementary school in Glendora, CA.
What is the student-teacher ratio at Cullen Elementary?
The student-teacher ratio at Cullen Elementary is 24.7:1, which is 15% higher than the California average of 21.5:1 and 57% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Cullen Elementary?
25.0% of students at Cullen Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Cullen Elementary?
The largest demographic group at Cullen Elementary is Hispanic or Latino at 45.2% of enrollment, in Glendora, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.5/100.
What is the Resource Investment Index for Cullen Elementary?
Cullen Elementary has a Resource Investment Index of 32/100 (typical 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 Cullen Elementary rank among elementary schools in Glendora?
By Resource Investment Index, Cullen Elementary ranks #3 of 7 elementary schools in Glendora, 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 Glendora on the city page.
Is Cullen Elementary a good school?
Cullen Elementary earns 32/100 on the Resource Investment Index, with class sizes larger than 77% of California schools. It is also more racially and ethnically mixed than most 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 Glendora Unified?
Besides Cullen Elementary, Glendora Unified also operates Glendora High (2,069 students), Goddard Middle (728 students), and Sandburg Middle (695 students). See the Glendora 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.