Enrollment
322
California · 2024-25 NCES data
Elementary school (grades K-5) · Tiburon, CA
Bel Aire Elementary
Federal NCES profile for Bel Aire Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.
2024-25 NCES dataElementary school (grades K-5)NCES 063216004975
👥 S:T ratio 28
🌟 Gifted program 30
📋 Attendance 78
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Bel Aire Elementary earns 45/100 on the Resource Investment Index, with class sizes smaller than 79% of California schools.
- #2 of 3
- public schools in Tiburon · Resource Index
- 45
- Resource Index · Typical
- 17.9:1
- small classes for California
- 3.6%
- free-lunch eligible
Bel Aire Elementary has class sizes smaller than 79% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Bel Aire Elementary ranks #2 of 3 public schools in Tiburon, CA.
School address
District: Reed Union Elementary · California
NCES ID 063216004975 Verify on NCES CCD record →
Teachers (FTE)
18.0
Federal CCD staff survey
Students per teacher
17.9:1
vs 21.5:1 California avg
-17% vs state
Free-lunch eligible
3.6%
vs 55.5% California avg
-94% vs state
Student-teacher ratio in context
How Bel Aire Elementary compares with California and U.S. medians
What stands out at Bel Aire Elementary
Bel Aire Elementary is a lower-poverty, mid-sized elementary school in Tiburon, California, enrolling 322 students.
Class sizes run a bit leaner than typical: 17.9:1 puts it in the smaller third of California schools by student-teacher ratio.
Comparatively few students face economic hardship here, 3.6% free-meal eligibility runs 94% below the California average.
Enrollment of 322 puts it in the smaller third of California schools by headcount.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Against 285 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #56.
Its student body is led by White (69%) and Two or More (11%) (diversity index 49/100).
Attendance holds up well here: only 9.0% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Reed Union Elementary spends $23,744 per pupil, 44% above the California average, a better-resourced district than most.
Among Tiburon's elementary schools, it stands alongside Reed Elementary (362 students): Bel Aire Elementary is smaller than that campus by headcount and runs leaner classes (17.9:1 vs 19.1:1).
Reed Union Elementary also operates Reed Elementary (362 students) and Del Mar Middle (359 students) alongside Bel Aire 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 Bel Aire Elementary compares
Bel Aire 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 | 17.9:1 | ▼ 17% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 3.6% | ▼ 94% | 55.5% | 51.7% |
| Enrollment | 322 | top 71% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.9:1
Leaner classes than 25% of US schools, heavier class loads than most.
322
Bigger than 36% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
3.6%
free-lunch eligible
- 94% 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
17.9:1
students per teacher
- 17% below state mean
Top 21% in California - lower ratio than 79% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
9.0%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$23,744
per pupil, district-wide
- above California avg of $16,509
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
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
White 69.2%
Two or More 10.9%
Hispanic or Latino 10.3%
Asian 7.8%
African American 1.9%
Largest group: White at 69.2% of enrollment.
Student-body diversity index 49.2/100
Simpson diversity index - at 49.2, Bel Aire Elementary is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Reed Union Elementary, which includes Bel Aire Elementary.
$23,744
Per student
+44%
vs California
Avg $16,509
+43%
vs U.S.
Avg $16,593
Revenue mix
Local 89.8%
State 8.4%
Federal 1.8%
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 Bel Aire Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Reed Elementary | Similar size | Similar economic need | Similar S:T ratio |
| Del Mar Middle | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to Bel Aire Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 362
- Students per teacher
- 19.1:1
- Resource Index
- 44/100
- Enrollment
- 359
- Students per teacher
- 11.6:1
- Resource Index
- 46/100
Similar elementary schools in Tiburon
1 comparable elementary schools (grades K-5) serving the same city.
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 (~322 students)
Similar student-teacher ratio (~17.9:1)
Next steps
Verify locally before acting on Bel Aire Elementary's federal record.
- Compare Bel Aire Elementary against another school. Compare schools
- Reed Union 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 Bel Aire Elementary
How many students attend Bel Aire Elementary?
Bel Aire Elementary has 322 students enrolled. It is an elementary school in Tiburon, CA.
What is the student-teacher ratio at Bel Aire Elementary?
The student-teacher ratio at Bel Aire Elementary is 17.9:1, which is 17% lower than the California average of 21.5:1 and 14% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Bel Aire Elementary?
3.6% of students at Bel Aire Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Bel Aire Elementary?
The largest demographic group at Bel Aire Elementary is White at 69.2% of enrollment, in Tiburon, CA.
What is the Resource Investment Index for Bel Aire Elementary?
Bel Aire Elementary has a Resource Investment Index of 45/100 (typical 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 Bel Aire Elementary rank among public schools in Tiburon?
By Resource Investment Index, Bel Aire Elementary ranks #2 of 3 public schools in Tiburon, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Tiburon on the city page.
Is Bel Aire Elementary a good school?
Bel Aire Elementary earns 45/100 on the Resource Investment Index, with class sizes smaller than 79% 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 Reed Union Elementary?
Besides Bel Aire Elementary, Reed Union Elementary also operates Reed Elementary (362 students) and Del Mar Middle (359 students). See the Reed Union 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.