Enrollment
444
California · 2024-25 NCES data
Elementary school (grades K-5) · Claremont, CA
Sumner Elementary
Federal NCES profile for Sumner Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 14/100.
2024-25 NCES dataElementary school (grades K-5)NCES 060876000894
👥 S:T ratio 6
🌟 Gifted program 30
📋 Attendance 6
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sumner Elementary earns 14/100 on the Resource Investment Index, with class sizes near the California median.
- #7 of 8
- elementary schools in Claremont · Resource Index
- 14
- Resource Index · Lower
- 23.4:1
- students per teacher
- 36.7%
- free-lunch eligible
Sumner Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Sumner Elementary ranks #7 of 8 elementary schools in Claremont, CA.
School address
District: Claremont Unified · California
NCES ID 060876000894 Verify on NCES CCD record →
Teachers (FTE)
19.0
Federal CCD staff survey
Students per teacher
23.4:1
vs 21.5:1 California avg
+9% vs state
Free-lunch eligible
36.7%
vs 55.5% California avg
-34% vs state
Student-teacher ratio in context
How Sumner Elementary compares with California and U.S. medians
What stands out at Sumner Elementary
Sumner Elementary is a mid-sized elementary school in Claremont, California, enrolling 444 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 36.7% of students eligible for free meals.
With 444 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index trails 93% of the 9,998 California schools with a score on record, one of the lower results on this measure.
Among 1,251 similarly sized, similarly resourced-need California schools statewide, it ranks #1,168, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (55%) and White (25%) (diversity index 62/100).
Chronic absenteeism is elevated: 37.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Claremont's elementary schools, it stands alongside Chaparral Elementary (648 students): Sumner Elementary is smaller than that campus by headcount and runs leaner classes (23.4:1 vs 28.2:1).
Claremont Unified also operates Claremont High (2,065 students) and El Roble Intermediate (952 students) alongside Sumner 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 Sumner Elementary compares
Sumner 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 | 36.7% | ▼ 34% | 55.5% | 51.7% |
| Enrollment | 444 | top 54% | - | - |
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.
444
Bigger than 54% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
36.7%
free-lunch eligible
- 34% 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
37.6%
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
$14,121
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 5 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 1.1 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 55.4%
White 24.8%
Asian 8.1%
African American 5.6%
Two or More 5.2%
American Indian / Alaska Native 0.5%
Native Hawaiian / Pacific Islander 0.5%
Largest group: Hispanic or Latino at 55.4% of enrollment.
Student-body diversity index 61.9/100
Simpson diversity index - at 61.9, Sumner Elementary is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Claremont Unified, which includes Sumner Elementary.
$14,121
Per student
-14%
vs California
Avg $16,509
-15%
vs U.S.
Avg $16,593
Revenue mix
Local 34.1%
State 59.3%
Federal 6.6%
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 Sumner Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Claremont High | Larger | Similar economic need | Similar S:T ratio |
| El Roble Intermediate | Larger | Similar economic need | Similar S:T ratio |
| Chaparral Elementary | Larger | Lower economic need | Higher S:T ratio |
| Condit Elementary | Larger | Lower economic need | Similar S:T ratio |
| Mountain View Elementary | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Sumner Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,065
- Students per teacher
- 22.7:1
- Resource Index
- 27/100
- Enrollment
- 952
- Students per teacher
- 22.7:1
- Resource Index
- 17/100
- Enrollment
- 648
- Students per teacher
- 28.2:1
- Resource Index
- 31/100
- Enrollment
- 603
- Students per teacher
- 23.2:1
- Resource Index
- 29/100
- Enrollment
- 408
- Students per teacher
- 24:1
- Resource Index
- 14/100
Similar elementary schools in Claremont
6 comparable elementary schools (grades K-5) serving the same city.
Chaparral Elementary
Standard public school
648 students 28.2:1 students per teacher
Condit Elementary
Standard public school
603 students 23.2:1 students per teacher
Mountain View Elementary
Standard public school
408 students 24:1 students per teacher
Sycamore Elementary
Standard public school
350 students 25:1 students per teacher
Oakmont Elementary
Standard public school
270 students 20.8:1 students per teacher
Vista Del Valle Elementary
Standard public school
264 students 20.3:1 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 (~444 students)
Similar student-teacher ratio (~23.4:1)
Next steps
Verify locally before acting on Sumner Elementary's federal record.
- Compare Sumner Elementary against another school. Compare schools
- Claremont 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 Sumner Elementary
How many students attend Sumner Elementary?
Sumner Elementary has 444 students enrolled. It is an elementary school in Claremont, CA.
What is the student-teacher ratio at Sumner Elementary?
The student-teacher ratio at Sumner 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 Sumner Elementary?
36.7% of students at Sumner Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Sumner Elementary?
The largest demographic group at Sumner Elementary is Hispanic or Latino at 55.4% of enrollment, in Claremont, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.9/100.
What is the Resource Investment Index for Sumner Elementary?
Sumner Elementary has a Resource Investment Index of 14/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Sumner Elementary rank among elementary schools in Claremont?
By Resource Investment Index, Sumner Elementary ranks #7 of 8 elementary schools in Claremont, 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 Claremont on the city page.
Is Sumner Elementary a good school?
Sumner Elementary earns 14/100 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 Claremont Unified?
Besides Sumner Elementary, Claremont Unified also operates Claremont High (2,065 students), El Roble Intermediate (952 students), and Chaparral Elementary (648 students). See the Claremont 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.