Grade Trends

Oster Elementary

Grades K–5 Public District: Union Elementary

1855 Lencar Way, San Jose, CA 95124 Map

Math (met standard)
83%
+41 state 42% · 2025-26
English (met standard)
75%
+29 state 47% · 2025-26
Science (met standard)
72%
+37 state 35% · 2025-26
Low income
13%
free or reduced-price lunch
Students
627
2024-25
Students per teacher
26.0
2024-25

Test score trends

Share of students who met or exceeded the state standard each year.

Latest results by grade

Grade Math English Science
Grade 3 82% state 47% · 2025-26 68% state 44% · 2025-26 —
Grade 4 85% state 42% · 2025-26 79% state 46% · 2025-26 —
Grade 5 81% state 37% · 2025-26 78% state 49% · 2025-26 72% state 35% · 2025-26
All grades 83% state 42% · 2025-26 75% state 47% · 2025-26 72% state 35% · 2025-26
Results by year (all grades)
School year Math English Science
2025-26 83% state 42% 75% state 47% 72% state 35%
2024-25 80% state 42% 77% state 46% 69% state 33%
2023-24 80% state 41% 80% state 45% 70% state 33%
2022-23 81% state 40% 78% state 45% 72% state 32%
2021-22 79% state 38% 81% state 44% 70% state 31%
2018-19 78% state 43% 79% state 50% 64% state 32%
2017-18 81% state 42% 82% state 49% —
2016-17 82% state 41% 82% state 45% —
2015-16 76% state 39% 84% state 45% —
2014-15 72% state 35% 78% state 41% —

Students

Race and ethnicity, 2024-25

Year-by-year history is loaded from the NCES Common Core of Data (2017-18 onward).

Nearby schools

Subject percentages show the share of students who met or exceeded the state standard.

Pick to compare
Sartorette Charter
Grades K–5 Charter · Cambrian
0.6 mi
40%
−3 vs state
54%
+8 vs state
36%
±0 vs state
7% Average of math, English and science: 50% in 2022-23 → 43% in 2025-26 21% 278 Hispanic 39%
Steindorf STEAM K-8 Magnet
Grades K–8 · Cambrian
0.7 mi
81%
+42 vs state
83%
+35 vs state
82%
+47 vs state
6% Average of math, English and science: 76% in 2022-23 → 82% in 2025-26 5% 491 Asian 42%
Fammatre Elementary
Grades K–5 Charter · Cambrian
1.1 mi
51%
+9 vs state
50%
+4 vs state
45%
+9 vs state
9% Average of math, English and science: 58% in 2022-23 → 49% in 2025-26 22% 482 Hispanic 37%
Noddin Elementary
Grades K–5 · Union Elementary
1.3 mi
76%
+35 vs state
80%
+34 vs state
72%
+36 vs state
7% Average of math, English and science: 69% in 2022-23 → 76% in 2025-26 15% 500 Asian 46%
Lietz Elementary
Grades K–5 · Union Elementary
1.3 mi
63%
+22 vs state
65%
+19 vs state
56%
+21 vs state
4% Average of math, English and science: 58% in 2022-23 → 62% in 2025-26 23% 501 Hispanic 35%
Farnham Charter
Grades K–5 Charter · Cambrian
1.3 mi
58%
+16 vs state
55%
+8 vs state
44%
+9 vs state
13% Average of math, English and science: 65% in 2022-23 → 52% in 2025-26 24% 372 Hispanic 33%
Bagby Elementary
Grades K–5 · Cambrian
1.5 mi
66%
+23 vs state
64%
+18 vs state
57%
+22 vs state
Average of math, English and science: 63% in 2022-23 → 62% in 2025-26 15% 529 White 34%
Reed Elementary
Grades K–5 · San Jose Unified
1.5 mi
68%
+26 vs state
63%
+17 vs state
53%
+17 vs state
5% Average of math, English and science: 66% in 2022-23 → 61% in 2025-26 24% 356 White 35%
Carlton Elementary
Grades K–5 · Union Elementary
1.5 mi
83%
+41 vs state
77%
+30 vs state
64%
+28 vs state
6% Average of math, English and science: 80% in 2022-23 → 74% in 2025-26 5% 656 Asian 47%
Alta Vista Elementary
Grades K–5 · Union Elementary
1.6 mi
80%
+38 vs state
78%
+32 vs state
68%
+33 vs state
4% Average of math, English and science: 79% in 2022-23 → 75% in 2025-26 7% 584 Asian 43%