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Oster Elementary School

Public School | Grades K-5 | Union Elementary
1855 Lencar Way
San Jose, CA 95124
(408) 266-8121

About This School

Oster Elementary School is located in San Jose, CA and is one of 6 elementary schools in Union Elementary School District. It is a public school that serves 491 students in grades K-5. See Oster Elementary School's test results to learn more about school performance.

A school's Academic Performance Index (API) is a scale that ranges from 200 to 1000 and is calculated from the school's performance in the Standardized Testing and Reporting (STAR) Program. The state has set 800 as the API target for all schools to meet.

Oster Elementary School had an API growth score of 925 in 2012. California uses the Academic Performance Index (API) to measure annual school performance and year-to-year improvement. Oster Elementary School's 2012 base score was 901 and the school did meet its 2012 school-wide growth target.

In 2010, Oster Elementary School had 21 students for every full-time equivalent teacher. The California average is 24 students per full-time equivalent teacher.

Student Ethnicity (2011)

Students (2011)


Students Per Teacher (2010)

Female/Male (2011)

47% 53%

Subsidized Lunch (2011)


District Spending (2010)

per student
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Grade 2 English Language Arts Performance

CST Results
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Oster Elementary School Reviews

By , a Parent on

I think Oster is a great school.  My three kids have learned so much being in such an amazing environment with the support from the Xilinx Computer Company, the County Deaf School, and all of the dedicated teachers and parents who make sure every kid achieves.  Definitely the most well rounded and global school in Nor Cal.

By , a Parent on

My son goes to Oster Elementary and we are very happy with the teachers, administration office and the academic programs. everyone been wonderful and very attentive and listening to our needs.
His teacher has been very good on following up on even the smallest issue.

My wife and I participate in programs called "Art Vistas" and "Corner Stone" where we come to the class and interact with the kids and teach them about art, or read a story and discuss it. WE LOVE IT!

The main thing I don't appreciate is the policy of "no play" before and after school. they don't allow the  kids to play on the equipment in the morning or after they get picked up. and while I get the liability issues, it seem ridiculous to me. seem like they picked the easy solution, rather then find a good solution.

By on

I think this is a great school and MOST of the teachers are great all except for one. I dont wanna mention any names here, so let me just put it this way. she is constantly talking about things far irrelevant (grandkids, her car accidents, where she lives, her chidhood, grandkids, kids, grandkids, grandkids, grandkids, and finnally, More grandkids!)   i also noticed that she yells rather loudly at her students when they get an answer inncorect. i also observed that the students in this class are always bored and i never saw a single child smile in this class. While i was also observing what the kids do at recess, i saw

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