Excellent
#543 of 9,539 schools in CA
Top 6% in state
Oster Elementary
Elementary School · Union Elementary · San Jose, CA
An Union Elementary elementary school where students score 11 points above what's typical for similar communities.
1855 Lencar Way, San Jose, CA 95124
- Math 80% vs CA 39% (2024)
- Reading 80% vs CA 45% (2024)
- 24.1:1 student-teacher ratio
Academics
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Students at Oster Elementary score 80% proficient, which is above what's typical for similar communities (expected: 69%).
2024 CAASPP proficiency
Most recent published year. School vs. CA average.
Trend
→ SteadyProficiency has held near 80% across the 16-year record (2009–2024).
Show all 12 years
Multi-year averages used by the rating model: math 80% (multi-year average, 2009-2024) · reading/ELA 80% (multi-year average, 2009-2024)
Based on 30 test records from CA state assessments and EdFacts (NCES).
Equity & diversity
Shown separately, not included in the overall scoreFree/reduced lunch
9.7%
Students qualifying for federal meal assistance
How we rate schools
A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.
See how we rateThe neighborhood
Where Oster Elementary sits, and what the surrounding area looks like.
Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the San Jose map →
Getting around & local context
- Walk 55Somewhat Walkable
- Transit 29Some Transit
- Bike 53Bikeable
- City Safety: High3,210/100K
Powered by
FBI Uniform Crime Reporting · 2024 · city context (San Jose), not school-level safety or attendance eligibility. Source details
Source period: 2024. Freshness not available.
Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)
Median income
$188,433
Median home value
$1,596,700
Median rent
$2,936/mo
College educated
60.9%
Homeownership
72.1%
Poverty rate
4%
ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 95124; this is area context, not an attendance boundary.
Compare nearby
Nearby same-level schools
4 from a 5-mile search; district fallback available
| School | Score | Grades | Distance | Enrollment | Compare |
|---|---|---|---|---|---|
| One World Montessori School Inc. LeighPrivate · tuition | Not rated | PK–K | 0.1 mi | 7 | Compare → |
| Challenger School-harwoodPrivate · tuition | 6.9private | PK–4 | 0.6 mi | 96 | Compare → |
| Sartorette CharterCharter · enrollment unverified | 6.4 | K–5 | 0.6 mi | 287 | Compare → |
| Challenger - HarwoodPrivate · tuition | Not rated | K–5 | 0.7 mi | 119 | Compare → |
Distance is proximity only; it is not attendance eligibility.
Private · tuition: Potential private option; tuition and admission requirements have not been verified.
Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.
Public and private scores come from different models and are shown side by side, not blended into one ranking.
Union Elementary
- Schools in district
- 8
- Rank in district
- #2 of 8
- District spending per student
- $16,087NCES F-33 · FY 2023 · This annual source is three years behind the current year.
- District child poverty rate
- 2.7%Census SAIPE · 2024
Oster Elementary is listed in Union Elementary; a district label does not verify attendance for an address.
About Oster Elementary
Oster Elementary is a public elementary school in San Jose, CA, part of Union Elementary, serving approximately 627 students in grades Kindergarten-5th with a 24.1:1 student-teacher ratio. It holds a MySchoolScout rating of 8.8 out of 10 and ranks #543 of 9,539 schools in CA. State assessment records show 80% math proficiency (multi-year average, 2009-2024) and 80% reading/ELA proficiency (multi-year average, 2009-2024).
Frequently asked questions
Common questions about Oster Elementary
What grades does Oster Elementary serve?
Oster Elementary serves students in grades Kindergarten through 5th.
How many students attend Oster Elementary?
Oster Elementary has an enrollment of approximately 627 students.
What is the student-teacher ratio at Oster Elementary?
The student-teacher ratio at Oster Elementary is 24.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Oster Elementary rank in CA?
Oster Elementary ranks #543 of 9,539 schools in CA.
What is Oster Elementary's MySchoolScout rating?
Oster Elementary has a current MySchoolScout rating of 8.8 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Oster Elementary?
Based on loaded state assessment records, Oster Elementary has 80% math proficiency (multi-year average, 2009-2024) and 80% reading/ELA proficiency (multi-year average, 2009-2024).
Is Oster Elementary a charter school?
No, Oster Elementary is not a charter school. It is a traditional public school operated by the local school district.
Is Oster Elementary a Title I school?
No, Oster Elementary is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Oster Elementary?
9.7% of students at Oster Elementary qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
School factsNCES Common Core of Data (CCD) (SY 2023–24)
- Grades
- Kindergarten – 5th
- Enrollment
- 627
- Student-Teacher Ratio
- 24.1:1
- Teachers (FTE)
- 26
- Type
- regular
- Setting
- Large City
- County
- Santa Clara County
- Chronic Absenteeism (SY 2022-23)
- 9.4%
- Phone
- (408) 266-8121
- Area population (ZIP 95124)
- 51,991
- Area average commute
- 27.8 min
- Area median age
- 39.8
Official sources & links
About this school's data
Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.
- School directory (enrollment, grades, staff, contact)
- NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
- Source period: SY 2023–24. A newer release may be available.
- MySchoolScout rating and rank
- MySchoolScout ranking model · Low confidence
- Vintage not available. Do not use this measure alone.
- Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
- Math proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Reading/ELA proficiency
- State department of education · 2024 CAASPP · Medium confidence
- Available for part of the eligible units; results may not represent the full area.
- Source period: 2024 CAASPP. A newer release may be available.
- Derived from source records rather than read directly from one field.
- Student progress (growth)
- NCES EdFacts · Mixed source periods · Low confidence
- Vintage not available. Do not use this measure alone.
- Available for part of the eligible units; results may not represent the full area.
- Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
- Neighborhood (income, housing, education)
- U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
- Older source: ACS 2019–2023 5-year estimates. Use as historical context.
- Reported for the ZCTA for ZIP 95124; this does not measure the attendance area.
Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2024; directory SY 2023–24
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