Serving 627 students in grades Kindergarten-5, Oster Elementary School ranks in the top 5% of all schools in California for overall test scores (math proficiency is top 5%, and reading proficiency is top 5%).
The percentage of students achieving proficiency in math is 81% (which is higher than the California state average of 34%). The percentage of students achieving proficiency in reading/language arts is 81% (which is higher than the California state average of 47%).
The student-teacher ratio of 24:1 is higher than the California state level of 21:1.
Minority enrollment is 76% of the student body (majority Asian), which is lower than the California state average of 80% (majority Hispanic).
Quick Facts (2025)
- Grades: Kindergarten-5
- Enrollment: 627 students
- Student-Teacher Ratio: 24:1
- Minority Enrollment: 76%
- Overall Testing Rank: Top 5% in CA
- Math Proficiency: 81% (Top 5%)
- Reading Proficiency: 81% (Top 5%)
- Science Proficiency: 70-74% (Top 5%)
- Source: National Center for Education Statistics (NCES), CA Dept. of Education
Top Rankings
Oster Elementary School ranks among the top 20% of public schools in California for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
School Overview
Oster Elementary School's student population of 627 students has stayed relatively flat over five school years.
The teacher population of 26 teachers has stayed relatively flat over five school years.
Grades Offered
Grades Kindergarten-5
Total Students
627 students
Gender %
Total Classroom Teachers
26 teachers
School Calendar
School Rankings
Oster Elementary School ranks within the top 5% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).
The diversity score of Oster Elementary School is 0.67, which is more than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#270 out of 9523 schools
(Top 5%)
(Top 5%)
Math Test Scores (% Proficient)
81%
34%
Reading/Language Arts Test Scores (% Proficient)
81%
47%
Science Test Scores (% Proficient)
70-74%
29%
Student-Teacher Ratio
24:1
21:1
American Indian
n/a
1%
Asian
49%
12%
Hispanic
18%
56%
Black
1%
5%
White
24%
20%
Hawaiian
n/a
n/a
Two or more races
8%
6%
All Ethnic Groups
Eligible for Free Lunch
9%
54%
Eligible for Reduced Lunch (21-22)
1%
7%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CA Dept. of Education
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Oster Elementary School's ranking?
Oster Elementary School is ranked #270 out of 9,523 schools, which ranks it among the top 5% of public schools in California.
What schools are Oster Elementary School often compared to?
Oster Elementary Schoolis often viewed alongside schools like Carlton Elementary School, Noddin Elementary School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
81% of students have achieved math proficiency (compared to the 34% CA state average), while 81% of students have achieved reading proficiency (compared to the 47% CA state average).
How many students attend Oster Elementary School?
627 students attend Oster Elementary School.
What is the racial composition of the student body?
49% of Oster Elementary School students are Asian, 24% of students are White, 18% of students are Hispanic, 8% of students are Two or more races, and 1% of students are Black.
What is the student-teacher ratio of Oster Elementary School?
Oster Elementary School has a student ration of 24:1, which is higher than the California state average of 21:1.
What grades does Oster Elementary School offer ?
Oster Elementary School offers enrollment in grades Kindergarten-5
What school district is Oster Elementary School part of?
Oster Elementary School is part of Union Elementary School District.
In what neighborhood is Oster Elementary School located?
Oster Elementary School is located in the Oster neighborhood of San Jose, CA.
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