Oster Elementary School
Elementary school in San Jose, CA · Union Elementary · Grades K-5
On the spring 2026 state tests, 75% of Oster Elementary School students met or exceeded California's reading (ELA) standard and 83% met the math standard. In reading, that is about the same as the Union Elementary average (76%) and 26 points above the California average (49%). Its reading result is higher than 82% of Bay Area elementary schools, and it ranks 17th of 122 public elementary schools in San Jose. Reading results in 2026 were 4 points lower than in 2024, and math results were 3 points higher than in 2024.
Test scores, 2024 to 2026
| Subject | Spring 2024 | Spring 2025 | Spring 2026 | Change |
|---|---|---|---|---|
| Reading (ELA) | 80% | 77% | 75% | −4 pts |
| Math | 80% | 80% | 83% | +3 pts |
Compared with nearby averages
| Spring 2026 | Reading (ELA) | Math |
|---|---|---|
| Oster Elementary School | 75% | 83% |
| Union Elementary | 76% | 77% |
| Santa Clara County | 60% | 54% |
| California | 49% | 38% |
Results by grade, spring 2026
| Grade | Reading (ELA) | Math |
|---|---|---|
| 3rd grade | 68% | 82% |
| 4th grade | 79% | 85% |
| 5th grade | 78% | 81% |
Students are tested in grades 3 to 8 and 11. Each grade is a different group of students, so differences between grades are not a trend.
Homes near Oster Elementary School
The typical home value in ZIP code 95124, where Oster Elementary School is located, is $1.86M, up 2.4% over the past year (Zillow Home Value Index). Prices inside the school's attendance zone can differ.
Zillow and Redfin can both search for homes inside a school’s attendance zone and email you new listings. Search for the school by name on either site and save the search.
Nearby elementary schools
| Distance | School | Reading (ELA) | Math | Typical home value (ZIP) |
|---|---|---|---|---|
| 0.8 mi | Steindorf STEAM K-8 MagnetSan Jose · Grades K-8 | 83% | 81% | $1.86M |
| 1.1 mi | Fammatre Elementary CharterSan Jose · Grades K-5 | 50% | 51% | $1.86M |
| 1.2 mi | Lietz ElementarySan Jose · Grades K-5 | 65% | 63% | $1.57M |
| 1.3 mi | Noddin ElementarySan Jose · Grades P-5 | 80% | 76% | $1.86M |
| 1.3 mi | Farnham Charter CharterSan Jose · Grades K-5 | 55% | 58% | $1.86M |
| 1.5 mi | Reed ElementarySan Jose · Grades K-5 | 63% | 68% | $1.57M |
School details
- Address
- 1855 Lencar Way, San Jose, CA 95124
Get directions · See it on our map - Phone
- (408) 266-8121
- District
- Union Elementary
- County
- Santa Clara County
- Grades
- K-5
- Students
- 625 (2025-26)
- Type
- Elementary school · Traditional
- Website
- oster.unionsd.org
- State school code
- 43697086049415
Common questions
How did Oster Elementary School do on state tests?
In spring 2026, 75% of students met or exceeded the reading (ELA) standard and 83% met the math standard, compared with 49% and 38% across California.
How many students attend Oster Elementary School?
625 students were enrolled in the 2025-26 school year, in grades K-5.
How much do homes cost near Oster Elementary School?
The typical home value in ZIP code 95124, where Oster Elementary School is located, is $1.86M, up 2.4% over the past year (Zillow Home Value Index). Prices inside the school's attendance zone can differ.
Does living near Oster Elementary School guarantee a spot?
No. Public schools assign students by attendance zone, which Union Elementary sets and can change. Confirm the zone for a specific address with the district before you buy or rent.