Top Rankings
Union Elementary School District ranks among the top 20% of public school district in California for:
Category
Attribute
Overall Rank
Highest overall rank (Top 5%)
Math Proficiency
Highest math proficiency (Top 5%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 5%)
Science Proficiency
Highest science proficiency (Top 5%)
Diversity
Most diverse schools (Top 1%)
Community Size
Largest student body (number of students) (Top 1%)
For the 2025 school year, there are 8 public elementary schools serving 5,368 students in Union Elementary School District. This district's average elementary testing ranking is 10/10, which is in the top 5% of public elementary schools in California.
Public Elementary Schools in Union Elementary School District have an average math proficiency score of 73% (versus the California public elementary school average of 35%), and reading proficiency score of 75% (versus the 45% statewide average).
The top ranked public elementary schools in Union Elementary School District are Carlton Elementary School, Oster Elementary School and Alta Vista Elementary School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking. Minority enrollment is 68% of the student body (majority Asian), which is less than the California public elementary school average of 79% (majority Hispanic).
Overview
This School District
This State (CA)
# Schools
8 Schools
7,700 Schools
# Students
5,368 Students
3,822,920 Students
# Teachers
228 Teachers
174,006 Teachers
Student : Teacher Ratio
24:1
24:1
Student By Grade
District Rank
Union Elementary School District, which is ranked #61 of all 1,925 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
Overall District Rank
#58 out of 1941 school districts
(Top 5%)
(Top 5%)
Math Test Scores (% Proficient)
(22-23)74%
34%
Reading/Language Arts Test Scores (% Proficient)
75%
47%
Science Test Scores (% Proficient)
65%
29%
Students by Ethnicity:
Diversity Score
0.69
0.64
% American Indian
n/a
1%
% Asian
42%
12%
% Hispanic
16%
55%
% Black
1%
5%
% White
32%
21%
% Hawaiian
n/a
n/a
% Two or more races
9%
6%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $15,908 in this school district is less than the state median of $19,974. The school district revenue/student has grown by 6% over four school years.
The school district's spending/student of $16,392 is less than the state median of $18,396. The school district spending/student has grown by 6% over four school years.
Total Revenue
$85 MM
$116,387 MM
Spending
$88 MM
$107,188 MM
Revenue / Student
$15,908
$19,974
Spending / Student
$16,392
$18,396
Best Union Elementary School District Public Elementary Schools (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Carlton Elementary School
(Math: 87% | Reading: 84%)
Rank:
Rank:
10/
Top 5%10
2421 Carlton Ave.
San Jose, CA 95124
(408) 356-1141
San Jose, CA 95124
(408) 356-1141
Grades: K-5
| 662 students
Rank: #22.
Oster Elementary School
(Math: 79% | Reading: 81%)
Rank:
Rank:
10/
Top 5%10
1855 Lencar Way
San Jose, CA 95124
(408) 266-8121
San Jose, CA 95124
(408) 266-8121
Grades: K-5
| 627 students
Rank: #33.
Alta Vista Elementary School
(Math: 79% | Reading: 80%)
Rank:
Rank:
10/
Top 5%10
200 Blossom Valley Rd.
Los Gatos, CA 95032
(408) 356-6146
Los Gatos, CA 95032
(408) 356-6146
Grades: K-5
| 576 students
Rank: #44.
Union Middle School
(Math: 77% | Reading: 80%)
Rank:
Rank:
10/
Top 5%10
2130 Los Gatos-almaden Rd.
San Jose, CA 95124
(408) 371-0366
San Jose, CA 95124
(408) 371-0366
Grades: 6-8
| 1,052 students
Rank: #55.
Guadalupe Elementary School
(Math: 77% | Reading: 73%)
Rank:
Rank:
10/
Top 10%10
6044 Vera Cruz Dr.
San Jose, CA 95120
(408) 268-1030
San Jose, CA 95120
(408) 268-1030
Grades: K-5
| 547 students
Rank: #66.
Noddin Elementary School
(Math: 72% | Reading: 73%)
Rank:
Rank:
10/
Top 10%10
1755 Gilda Way
San Jose, CA 95124
(408) 356-2126
San Jose, CA 95124
(408) 356-2126
Grades: K-5
| 522 students
Rank: #77.
Dartmouth Middle School
(Math: 62% | Reading: 67%)
Rank:
Rank:
9/
Top 20%10
5575 Dartmouth Dr.
San Jose, CA 95118
(408) 264-1122
San Jose, CA 95118
(408) 264-1122
Grades: 6-8
| 850 students
Rank: #88.
Lietz Elementary School
(Math: 60% | Reading: 58%)
Rank:
Rank:
9/
Top 20%10
5300 Carter Ave.
San Jose, CA 95118
(408) 264-8314
San Jose, CA 95118
(408) 264-8314
Grades: K-5
| 532 students
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