Top Rankings
Byron Union Elementary School District ranks among the top 20% of public school district in California for:
Category
Attribute
Diversity
Most diverse schools (Top 1%)
For the 2025-26 school year, there are 2 public middle schools serving 444 students in Byron Union Elementary School District. This district's average middle testing ranking is 6/10, which is in the top 50% of public middle schools in California.
Public Middle Schools in Byron Union Elementary School District have an average math proficiency score of 35% (versus the California public middle school average of 32%), and reading proficiency score of 39% (versus the 46% statewide average).
Minority enrollment is 50% of the student body (majority Hispanic), which is less than the California public middle school average of 78% (majority Hispanic).
Overview
This School District
This State (CA)
# Schools
4 Schools
3,496 Schools
# Students
1,238 Students
1,852,978 Students
# Teachers
61 Teachers
87,768 Teachers
Student-Teacher Ratio
20:1
20:1
Student By Grade
District Rank
Byron Union Elementary School District, which is ranked #659 of all 1,908 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 95% has stayed relatively flat over five school years.
Overall District Rank
#643 out of 1932 school districts
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
43%
34%
Reading/Language Arts Test Scores (% Proficient)
43%
47%
Science Test Scores (% Proficient)
27%
29%
Graduation Rate
(21-22)≥95%
87%
Students by Ethnicity:
Diversity Score
0.69
0.64
% American Indian
1%
1%
% Asian
6%
11%
% Hispanic
31%
55%
% Black
6%
5%
% White
45%
22%
% Hawaiian
2%
n/a
% Two or more races
9%
6%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $16,230 in this school district is less than the state median of $19,978. The school district revenue/student has grown by 6% over four school years.
The school district's spending/student of $13,542 is less than the state median of $18,399. The school district spending/student has grown by 6% over four school years.
Total Revenue
$20 MM
$116,387 MM
Spending
$17 MM
$107,188 MM
Revenue / Student
$16,230
$19,978
Spending / Student
$13,542
$18,399
Best Byron Union Elementary School District Public Middle Schools (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Excelsior Middle School
(Math: 36% | Reading: 39%)
Rank:
Rank:
6/
Top 50%10
14301 Byron Hwy.
Byron, CA 94514
(925) 809-7530
Byron, CA 94514
(925) 809-7530
Gr: 6-8 | 423 students Student-teacher ratio: 18:1 Minority enrollment: 49%
Rank: #22.
Byron Institute For Independent Study
Alternative School
(Math: ≤20% | Reading: 21-39%)
Rank:
Rank:
3/
Bottom 50%10
40 Newbury Ln.
Discovery Bay, CA 94505
(925) 809-7550
Discovery Bay, CA 94505
(925) 809-7550
Gr: K-8 | 21 students Student-teacher ratio: 11:1 Minority enrollment: 67%
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