Oster Elementary
🇺🇸 Official data · 2025San Jose, California 95124 · Union Elementary
#295 of 5,693 elementary schools in California
#5142 of 50,301 nationally
About Oster Elementary
Oster Elementary is a public elementary located in San Jose, in the Union Elementary school district of California, United States. It caters for Grades K–5. In 2025 it enrolled 627 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 79.7 out of 100, placing it in the top 25% of elementary schools in United States and 295th of 5,693 ranked elementary schools in California. Its strongest component is community advantage (fewer free/reduced-price lunch) (95th percentile), and its weakest is students per teacher (2th percentile).
Other published figures: enrollment 627.
There are 214 schools in San Jose; Oster Elementary ranks 21st of 213 scored schools there.
Success Index (US) breakdown
Each component is a percentile against elementary schools across United States.
- Math proficiency (30%)78%
- Reading proficiency (30%)79%
- Community advantage (fewer free/reduced-price lunch) (25%)12.8%
- Students per teacher (15%)26.1
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Oster Elementary by the official sources.
- Enrollment
- 627
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 12.8%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 26.1
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 79%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 78%
- Share of tested students proficient or above (all students, all grades).
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Schools near Oster Elementary
Closest schools by straight-line distance, with their Success Index (US).
Sartorette Charter
San Jose · Charter elementary · Grades K–5
278 students · 1.0 km away
Steindorf STEAM K-8 Magnet
San Jose · Public elementary · Grades K–8
491 students · 1.2 km away
Leigh High
San Jose · Public high · Grades 9–12
1,884 students · 1.5 km away
Fammatre Elementary
San Jose · Charter elementary · Grades K–5
482 students · 1.8 km away
Branham High
San Jose · Public high · Grades 9–12
1,820 students · 1.9 km away
Union Middle
San Jose · Public middle · Grades 6–8
1,068 students · 1.9 km away
Price Charter Middle
San Jose · Charter middle · Grades 6–8
959 students · 2.0 km away
Noddin Elementary
San Jose · Public elementary · Grades K–5
500 students · 2.0 km away
Lietz Elementary
San Jose · Public elementary · Grades K–5
501 students · 2.0 km away
Farnham Charter
San Jose · Charter elementary · Grades K–5
372 students · 2.2 km away
Similar schools
Public elementary schools in California with a comparable Enrollment.
Buena Terra Elementary
Buena Park · Public elementary · Grades K–6
627 students
John Stallings Elementary
Corona · Public elementary · Grades K–6
627 students
Benjamin Franklin Elementary
La Quinta · Public elementary · Grades K–5
627 students
Yamato Colony Elementary
Livingston · Public elementary · Grades K–5
627 students
Dr. Jonas E. Salk
Anaheim · Public elementary · Grades K–6
627 students
Alberta Martone Elementary
Modesto · Public elementary · Grades K–6
627 students
Frequently asked questions
Is Oster Elementary a good school?
Oster Elementary has a Success Index (US) of 79.7 out of 100 (Top 25% of elementary schools in United States) and ranks #295 of 5,693 in California. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Oster Elementary rank in California?
Oster Elementary ranks #295 of 5,693 elementary schools in California and #5142 of 50,301 nationally on the Success Index (US) (2025 data).
How many students attend Oster Elementary?
Oster Elementary had 627 students in 2025.
Is Oster Elementary a elementary school or a high school?
Oster Elementary is classified as a elementary covering Grades K–5. It is a public school.
What other schools are near Oster Elementary?
There are 10 schools within 15 km of Oster Elementary; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.