- Enrollment
- 1,068
- Students per teacher
- 25.4:1
- Resource Index
- 29/100
Elementary school (grades K-5) · San Jose, CA
Oster Elementary
Federal NCES profile for Oster Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
2024-25 NCES dataElementary school (grades K-5)NCES 064032006678
👥 S:T ratio 4
🌟 Gifted program 30
📋 Attendance 81
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Oster Elementary earns 38/100 on the Resource Investment Index, with class sizes larger than 72% of California schools.
- #36 of 154
- elementary schools in San Jose · Resource Index
- 38
- Resource Index · Typical
- 24.1:1
- large classes for California
- 8.6%
- free-lunch eligible
Oster Elementary has class sizes larger than 72% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Oster Elementary ranks #36 of 154 elementary schools in San Jose, CA.
School address
District: Union Elementary · California
NCES ID 064032006678 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-11 students YoY
Oster Elementary held near 627 students from 2022-23 to 2023-24 (-11 headcount).
Teacher FTE held 26.0 → 26.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-11 students YoY 064032006678 · San Jose, CA Elementary · MID · TRAD
627 enr · 24.1:1 · 8.6% lunch · RII 38
Nearest enrollment peer: Union Middle (1,068 students)
Oster Elementary held near 627 students from 2022-23 to 2023-24 (-11 headcount). Teacher FTE held 26.0 → 26.0 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Oster Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Union Middle
Union Middle
1,068 students
- Dartmouth Midd
Dartmouth Middle
903 students
- Carlton Elemen
Carlton Elementary
656 students
- This school
Oster Elementary
627 students
- Alta Vista Ele
Alta Vista Elementary
584 students
- Guadalupe Elem
Guadalupe Elementary
537 students
What this shows Oster Elementary reports 627 students on the CCD universe file.
How Oster Elementary compares
Oster Elementary held steady on CCD headcount: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 24.1:1 | ▲ 12% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 8.6% | ▼ 85% | 55.5% | 51.7% |
| Enrollment | 627 | top 29% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
24.1:1
Leaner classes than 6% of US schools, heavier class loads than most.
627
Bigger than 75% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
8.6%
free-lunch eligible
- 85% 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
24.1:1
students per teacher
- 12% above state mean
Top 72% in California - lower ratio than 28% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
7.8%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$16,075
per pupil, district-wide
- below California avg of $18,665
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 + 1 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.2 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Asian 51.5%
White 23.6%
Hispanic or Latino 17.9%
Two or More 6.1%
African American 1.0%
Largest group: Asian at 51.5% of enrollment.
Student-body diversity index 64.3/100
Simpson diversity index - at 64.3, Oster Elementary is more mixed than the California school average of 46.0.
Programs
District finance for Union Elementary reports $16,075 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Oster Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Union Middle | Larger | Similar economic need | Similar S:T ratio |
| Dartmouth Middle | Larger | Similar economic need | Similar S:T ratio |
| Carlton Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Alta Vista Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Guadalupe Elementary | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to Oster Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 903
- Students per teacher
- 25.1:1
- Resource Index
- 25/100
- Enrollment
- 656
- Students per teacher
- 28.5:1
- Resource Index
- 38/100
- Enrollment
- 584
- Students per teacher
- 27.8:1
- Resource Index
- 37/100
- Enrollment
- 537
- Students per teacher
- 21.5:1
- Resource Index
- 42/100
Similar elementary schools in San Jose
6 comparable elementary schools (grades K-5) serving the same city.
Easterbrook Discovery
Standard public school
952 students 22.1:1 students per teacher
Merritt Trace Elementary
Standard public school
829 students 23:1 students per teacher
Orchard Elementary
Standard public school
740 students 16.4:1 students per teacher
Tom Matsumoto Elementary
Standard public school
727 students 24.2:1 students per teacher
Herman (Leonard) Intermediate
Standard public school
723 students 22.6:1 students per teacher
Booksin Elementary
Standard public school
715 students 23.8:1 students per teacher
Nationwide elementary schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~627 students)
Frequently asked questions about Oster Elementary
How many students attend Oster Elementary?
Oster Elementary has 627 students enrolled. It is an elementary school in San Jose, CA. CCD year-over-year: 638 (2022-23) → 627 (2023-24), nearly flat (-11).
What is the student-teacher ratio at Oster Elementary?
The student-teacher ratio at Oster Elementary is 24.1:1, which is 12% higher than the California average of 21.5:1 and 54% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Oster Elementary?
8.6% of students at Oster Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Oster Elementary?
The largest demographic group at Oster Elementary is Asian at 51.5% of enrollment, in San Jose, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 64.3/100.
What is the Resource Investment Index for Oster Elementary?
Oster Elementary has a Resource Investment Index of 38/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Oster Elementary rank among elementary schools in San Jose?
By Resource Investment Index, Oster Elementary ranks #36 of 154 elementary schools in San Jose, 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 Jose on the city page.
What other schools are in Union Elementary?
Besides Oster Elementary, Union Elementary also operates Union Middle (1,068 students), Dartmouth Middle (903 students), and Carlton Elementary (656 students). See the Union Elementary district page for the complete list.