Enrollment
396
California · 2024-25 NCES data
Elementary school (grades K-5) · San Bruno, CA
Allen (Decima M.) Elementary
Federal NCES profile for Allen (Decima M.) 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 063423005393
👥 S:T ratio 0
🌟 Gifted program 30
📋 Attendance 7
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Allen (Decima M.) Elementary earns 12/100 on the Resource Investment Index, with class sizes larger than 98% of California schools.
- #5 of 7
- elementary schools in San Bruno · Resource Index
- 12
- Resource Index · Lower
- 33:1
- large classes for California
- 56.4%
- free-lunch eligible
Allen (Decima M.) Elementary has class sizes larger than 98% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Allen (Decima M.) Elementary ranks #5 of 7 elementary schools in San Bruno, CA.
School address
District: San Bruno Park Elementary · California
NCES ID 063423005393 Verify on NCES CCD record →
Teachers (FTE)
12.0
Federal CCD staff survey
Students per teacher
33:1
vs 21.5:1 California avg
+53% vs state
Free-lunch eligible
56.4%
vs 55.5% California avg
+2% vs state
Student-teacher ratio in context
How Allen (Decima M.) Elementary compares with California and U.S. medians
What stands out at Allen (Decima M.) Elementary
Allen (Decima M.) Elementary is a higher-need, mid-sized elementary school in San Bruno, California, enrolling 396 students.
Class loads run heavy: 33:1 is larger than about 98% of California schools and 53% above the 21.5:1 state mean, so each teacher carries more students than is typical.
Its free-meal eligibility rate of 56.4% lands close to the California typical range, neither a high- nor low-need campus by this measure.
With 396 students, its enrollment sits close to the California median campus size.
Its Resource Investment Index trails 95% of the 9,998 California schools with a score on record, one of the lower results on this measure.
Among 1,478 similarly sized, similarly resourced-need California schools statewide, it ranks #1,345, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (66%) and Two or More (15%) (diversity index 53/100).
Chronic absenteeism is elevated: 37.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among San Bruno's elementary schools, it stands alongside Monte Verde Elementary (517 students): Allen (Decima M.) Elementary is smaller than that campus by headcount and runs heavier classes (33:1 vs 23.5:1).
San Bruno Park Elementary also operates Parkside Intermediate (491 students) and John Muir Elementary (486 students) alongside Allen (Decima M.) 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 Allen (Decima M.) Elementary compares
Allen (Decima M.) 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 | 33:1 | ▲ 53% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 56.4% | ▲ 2% | 55.5% | 51.7% |
| Enrollment | 396 | top 61% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
33:1
Leaner classes than 1% of US schools, heavier class loads than most.
396
Bigger than 47% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
56.4%
free-lunch eligible
- 2% 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
33:1
students per teacher
- 53% above state mean
Top 98% in California - lower ratio than 2% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
37.1%
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
$14,553
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 + 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 65.7%
Two or More 15.2%
Asian 13.1%
Native Hawaiian / Pacific Islander 3.5%
African American 1.5%
White 1.0%
Largest group: Hispanic or Latino at 65.7% of enrollment.
Student-body diversity index 52.7/100
Simpson diversity index - at 52.7, Allen (Decima M.) Elementary is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for San Bruno Park Elementary, which includes Allen (Decima M.) Elementary.
$14,553
Per student
-12%
vs California
Avg $16,509
-12%
vs U.S.
Avg $16,593
Revenue mix
Local 77.9%
State 14.0%
Federal 8.1%
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 Allen (Decima M.) Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Parkside Intermediate | Similar size | Lower economic need | Lower S:T ratio |
| John Muir Elementary | Similar size | Lower economic need | Lower S:T ratio |
| Portola Elementary | Similar size | Lower economic need | Higher S:T ratio |
| Belle Air Elementary | Smaller | Similar economic need | Lower S:T ratio |
| Rollingwood Elementary | Smaller | Lower economic need | Lower S:T ratio |
Comparisons are relative to Allen (Decima M.) Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 491
- Students per teacher
- 18.2:1
- Resource Index
- 38/100
- Enrollment
- 486
- Students per teacher
- 30.4:1
- Resource Index
- 33/100
- Enrollment
- 378
- Students per teacher
- 37.8:1
- Resource Index
- 36/100
- Enrollment
- 250
- Students per teacher
- 25:1
- Resource Index
- 10/100
- Enrollment
- 201
- Students per teacher
- 22.3:1
- Resource Index
- 14/100
Similar elementary schools in San Bruno
6 comparable elementary schools (grades K-5) serving the same city.
Monte Verde Elementary
Standard public school
517 students 23.5:1 students per teacher
John Muir Elementary
Standard public school
486 students 30.4:1 students per teacher
Portola Elementary
Standard public school
378 students 37.8:1 students per teacher
Lomita Park Elementary
Standard public school
277 students 23.1:1 students per teacher
Belle Air Elementary
Standard public school
250 students 25:1 students per teacher
Rollingwood Elementary
Standard public school
201 students 22.3:1 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 (~396 students)
Similar student-teacher ratio (~33:1)
Next steps
Verify locally before acting on Allen (Decima M.) Elementary's federal record.
- Compare Allen (Decima M.) Elementary against another school. Compare schools
- San Bruno Park Elementary'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 Allen (Decima M.) Elementary
How many students attend Allen (Decima M.) Elementary?
Allen (Decima M.) Elementary has 396 students enrolled. It is an elementary school in San Bruno, CA.
What is the student-teacher ratio at Allen (Decima M.) Elementary?
The student-teacher ratio at Allen (Decima M.) Elementary is 33:1, which is 53% higher than the California average of 21.5:1 and 110% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Allen (Decima M.) Elementary?
56.4% of students at Allen (Decima M.) Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Allen (Decima M.) Elementary?
The largest demographic group at Allen (Decima M.) Elementary is Hispanic or Latino at 65.7% of enrollment, in San Bruno, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 52.7/100.
What is the Resource Investment Index for Allen (Decima M.) Elementary?
Allen (Decima M.) Elementary has a Resource Investment Index of 12/100 (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 Allen (Decima M.) Elementary rank among elementary schools in San Bruno?
By Resource Investment Index, Allen (Decima M.) Elementary ranks #5 of 7 elementary schools in San Bruno, 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 Bruno on the city page.
Is Allen (Decima M.) Elementary a good school?
Allen (Decima M.) Elementary earns 12/100 on the Resource Investment Index, with class sizes larger than 98% of 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 San Bruno Park Elementary?
Besides Allen (Decima M.) Elementary, San Bruno Park Elementary also operates Parkside Intermediate (491 students), John Muir Elementary (486 students), and Portola Elementary (378 students). See the San Bruno Park Elementary 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.