Enrollment
322
Elementary
DISTRICT 342 · STATE 465
SCHOOL COMMUNITY·REED UNION ELEMENTARY·NCES 063216004975
Bel Aire Elementary
277 Karen Way, Tiburon, CA 94920 · (415) 388-7100 · Marin County
GRADES 03–05ELEMENTARY21-SUBURBREGULAR SCHOOL322 STUDENTS
B+
allk12 Grade
Scored higher than 72% of California public elementary schools
- ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- B-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- CThree-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded California public elementary schools
Student : Teacher
17.7:1
18 FTE teachers
DISTRICT 17.3:1 · STATE 22.3:1
Free / Reduced Lunch
8%
26 students
DISTRICT 5% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 3 | 102 | 32% |
| Grade 4 | 106 | 33% |
| Grade 5 | 114 | 35% |
Student demographics
49%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 49% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Students here typically continue to
Bel Aire Elementary→Del Mar Middle
Feeds from
Based on grade levels within Reed Union Elementary. Attendance zones can vary; confirm enrollment with the district.
Test scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
77.8%
CA avg 49.1% . -5.2pp since 2014
Math
76.3%
CA avg 37.7% . -4.7pp since 2014
What this means: On the CAASPP, California's statewide test, about 78 of every 100 students at this school read and write at grade level and about 76 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are down about 5 points since 2014, while math scores are down about 5 points.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 46.9% | 30.9% | 14.2% | 8.0% |
| Math | 46.5% | 29.9% | 17.2% | 6.5% |
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.
CAASPP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 77.8% | 76.3% |
| 2023-24 | 73.7% | 74.2% |
| 2022-23 | 77.7% | 78.4% |
| 2021-22 | 80.9% | 76.5% |
| 2020-21 | 77.5% | 75.3% |
| 2018-19 | 81.5% | 77.4% |
| 2017-18 | 79.2% | 79.7% |
| 2016-17 | 76.5% | 78.3% |
| 2015-16 | 82.0% | 84.0% |
| 2014-15 | 83.0% | 81.0% |
% met or exceeded standard, all students and all tested grades.
Source: CAASPP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
75.4%
composite math + reading, all grades
Predicted
74.8%
based on CA schools with similar FRL share
Beats by
+0.6pp
above demographic expectation
What this means: About 75% of students here test proficient in math and reading, compared with the roughly 75% typical for California schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among California's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Bel Aire Elementary
Bel Aire Elementary's state test result (75.4% proficient) is higher than 2 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Bel Aire Elementary this school | 322 | 8.1% | 75.4% |
| Lucas Valley Elementary San Rafael | 315 | 9.5% | 70.2% |
| R. Roger Rowe Elementary Rancho Santa Fe | 316 | 5.4% | 86.5% |
| Roy O. Andersen Elementary Newport Beach | 353 | 9.3% | 81.3% |
| Harbor View Elementary Corona Del Mar | 344 | 12.2% | 77.8% |
| Mission Estancia Elementary Carlsbad | 355 | 12.7% | 70.1% |
Matched among California elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Bel Aire Elementary ranks
Among elementary schools| Measure | This school | In California | In Marin County |
|---|---|---|---|
| State test proficiency ranked highest first | 75.4% | #415 of 5,151 | #10 of 34 |
| Math proficiency ranked highest first | 76.3% | #369 of 5,172 ▲ 74 | #12 of 35 ▼ 2 |
| Reading proficiency ranked highest first | 77.8% | #371 of 5,172 ▲ 155 | #9 of 35 ▲ 2 |
| 3-year test score change ranked biggest drop first | -1.6pp | #1,337 of 5,116 | #10 of 35 |
| Enrollment ranked largest first | 322 | #4,561 of 5,915 | #21 of 44 |
| Students per teacher ranked fewest first | 17.7:1 | #222 of 5,352 | #4 of 35 |
| Diversity index ranked most diverse first | 49.3% | #2,817 of 5,354 | #18 of 35 |
| Free and reduced lunch ranked highest share first | 8.1% | #5,524 of 5,625 | #29 of 37 |
| Enrollment change since 2017-18 ranked steepest decline first | -36.0% | #258 of 3,837 | #3 of 26 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
322
-74 (-19%) vs 2020
+17% since 1990-91, when it was 276
Student : Teacher
17.7:1
was 16.5:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 322 | 18.2 | 17.7:1 | 8% (26) |
| 2023-24 | 330 | 18.2 | 18.2:1 | 5% (15) |
| 2022-23 | 303 | 18 | 16.8:1 | 4% (11) |
| 2020-21 | 396 | 24 | 16.5:1 | 5% (19) |
| 2017-18 | 503 | 26.2 | 19.2:1 | 4% (22) |
| 2015-16 | 555 | 24 | 23.1:1 | 3% (17) |
| 2010-11 | 436 | N/A | N/A | 4% (18) |
| 2000-01 | 374 | 26 | 14.4:1 | 1% (3) |
| 1990-91 | 276 | 13 | 21.2:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Bel Aire Elementary.
Since 2017-18: students down 36% (503 to 322); teachers down 31% (26.2 to 18.2).
About Bel Aire Elementary
Bel Aire Elementary is an elementary school with a street address in Tiburon, California. The student body numbers 322 students, from grades 3 through 5. Average enrollment for elementary schools in California is about 465, so this school runs 31% smaller than that.
Reed Union Elementary, which runs Bel Aire Elementary, has 3 schools and 1,043 students.
Roughly 69% of students at Bel Aire Elementary are White. The rest of enrollment is 11% multiracial, 10% Hispanic, and 8% Asian. That is close to the 68% White share among all Marin County residents. The school's diversity index is 49%, meaning two students picked at random have a 49% chance of belonging to different racial or ethnic groups.
With 18.2 full-time-equivalent teachers in 2024-25, the ratio at Bel Aire Elementary was 17.7:1. On average, elementary schools in California have 22.3:1, compared with 17.7:1 here. Bel Aire Elementary's free or reduced-price lunch eligibility rate is 8%. On average, public schools in Marin County report 35%.
The allk12 Grade for Bel Aire Elementary is B+. Compared with California public elementary schools, the school scored higher than 72% on a mix of test scores, poverty-adjusted results, and recent trend.
After adjusting for student poverty, Bel Aire Elementary lands between the top and bottom 10% of California schools. Its average proficiency rate on state tests is 75.4%; the prediction is 74.8%.
Across Marin County, the median household income is $149,091, about 61% of adults have at least a bachelor's degree, and roughly 4% of residents are in poverty. In all, Marin County has 75 public schools and roughly 29,867 students.
Strawberry Point Elementary is the closest public school, about 0.7 miles away in a straight line. In all, at least 8 other public schools sit within five miles of Bel Aire Elementary. Of the 9 nearby schools with scores, including this one, Bel Aire Elementary is 7th on average proficiency.
The school's setting, by NCES definition, is Suburb: Large: in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
Enrollment at Bel Aire Elementary dropped 19% between 2020-21 and 2024-25, from 396 to 322 students. Federal data show the ratio rising from 16.5:1 to 17.7:1.
Parents and students can post about sports schedules, lunch menus, and spirit week at Bel Aire Elementary. Questions from prospective families are welcome too.
Marin County at a glance
View full county profilePopulation
257,969
Census ACS
Median income
$149,091
Household, ACS
Bachelor's+
61%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
75
29,867 students
Quick facts
Related schools
Other schools in Reed Union Elementary
- Reed ElementaryElementary · 362 students
- Del Mar MiddleMiddle · 359 students
Other schools in Tiburon
- Reed ElementaryElementary · 362 students
- Del Mar MiddleMiddle · 359 students
Other Bel Aire Elementary schools
One other US public school is named Bel Aire Elementary. Bel Aire Elementary is the 2nd largest of the 2.
- Bel Aire ElementaryTullahoma, TN · 359 students
Nearby schools
- Strawberry Point Elementary0.7 mi · 259
- Del Mar Middle1.0 mi · 359
- Cove1.3 mi · 275
- Edna Maguire Elementary1.6 mi · 399
- Mill Valley Middle1.8 mi · 721
- Tamalpais High2.0 mi · 1,470
Frequently asked questions
About Bel Aire ElementaryHow many students attend Bel Aire Elementary?
Bel Aire Elementary enrolls approximately 322 students in grades 03-05.
What grades does Bel Aire Elementary serve?
Bel Aire Elementary serves grades 03-05.
How many students per teacher at Bel Aire Elementary?
Approximately 17.7:1 students per teacher at Bel Aire Elementary.
How diverse is Bel Aire Elementary?
Bel Aire Elementary reports a student body of 69% White, 10% Hispanic, 2% Black, 8% Asian, 11% Two or more.
Is Bel Aire Elementary public or private?
Bel Aire Elementary is a public K-12 school, overseen by Reed Union Elementary.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.