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 2026-27 school year, there are 4 public schools serving 1,182 students in Byron Union Elementary School District. This district's average testing ranking is 7/10, which is in the top 50% of public schools in California.
Public Schools in Byron Union Elementary School District have an average math proficiency score of 43% (versus the California public school average of 35%), and reading proficiency score of 44% (versus the 47% statewide average).
Minority enrollment is 58% of the student body (majority Hispanic), which is less than the California public school average of 80% (majority Hispanic).
Overview
This School District
This State (CA)
# Schools
4 Schools
10,323 Schools
# Students
1,182 Students
5,788,587 Students
# Teachers
55 Teachers
267,491 Teachers
Student-Teacher Ratio
21:1
21:1
Student By Grade
District Rank
Byron Union Elementary School District, which is ranked #659 of all 1,903 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%)
Showing 2012–2023. Full 14-year historical data available below ↓
Math Test Scores (% Proficient)
43%
34%
Showing 2012–2023. Full 14-year historical data available below ↓
Reading/Language Arts Test Scores (% Proficient)
43%
47%
Showing 2011–2022. Full 13-year historical data available below ↓
Science Test Scores (% Proficient)
27%
29%
Graduation Rate
(21-22)≥95%
87%
Chronically Absent Students
(2022-23)26.8%
27.7%
Students by Ethnicity:
Diversity Score
0.69
0.63
Showing 2014–2023. Full 36-year historical data available below ↓
% American Indian
1%
1%
Showing 2013–2023. Full 36-year historical data available below ↓
% Asian
6%
12%
Showing 2014–2023. Full 36-year historical data available below ↓
% Hispanic
35%
56%
Showing 2014–2023. Full 36-year historical data available below ↓
% Black
5%
5%
Showing 2014–2023. Full 36-year historical data available below ↓
% White
42%
20%
Showing 2014–2023. Full 36-year historical data available below ↓
% Hawaiian
1%
n/a
% Two or more races
10%
6%
Showing 2013–2023. Full 15-year historical data available below ↓
All Ethnic Groups
District Revenue and Spending
The revenue/student of $21,217 in this school district is less than the state median of $26,022. The school district revenue/student has grown by 22% over four school years.
The school district's spending/student of $17,384 is less than the state median of $22,604. The school district spending/student has grown by 13% over four school years.
Total Revenue
$25 MM
$150,628 MM
Showing 2014–2023. Full 34-year historical data available below ↓
Spending
$21 MM
$130,845 MM
Showing 2014–2023. Full 34-year historical data available below ↓
Revenue / Student
$21,217
$26,022
Showing 2014–2023. Full 34-year historical data available below ↓
Spending / Student
$17,384
$22,604
Showing 2014–2023. Full 34-year historical data available below ↓
Best Byron Union Elementary School District Public Schools (2026-27)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Discovery Bay Elementary School
(Math: 59% | Reading: 60-64%)
Rank:
Rank:
9/
Top 20%10
1700 Willow Lake Rd.
Discovery Bay, CA 94505
(925) 809-7540
Discovery Bay, CA 94505
(925) 809-7540
Gr: K-5 | 417 students Student-teacher ratio: 22:1 Minority enrollment: 62%
Rank: #22.
Timber Point Elementary School
(Math: 40-44% | Reading: 35-39%)
Rank:
Rank:
6/
Top 50%10
40 Newbury Ln.
Discovery Bay, CA 94505
(925) 809-7550
Discovery Bay, CA 94505
(925) 809-7550
Gr: K-5 | 362 students Student-teacher ratio: 24:1 Minority enrollment: 57%
Rank: #33.
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 | 377 students Student-teacher ratio: 19:1 Minority enrollment: 54%
Rank: #44.
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 | 26 students Student-teacher ratio: 26:1 Minority enrollment: 73%
Frequently Asked Questions
How many schools belong to Byron Union Elementary School District?
Byron Union Elementary School District manages 4 public schools serving 1,182 students.
What is the rank of Byron Union Elementary School District?
Byron Union Elementary School District is ranked #659 out of 1,903 school districts in California (top 50%) based off of combined math and reading proficiency testing data for the 2022-2023 school year. This district ranks in the top 20% of California school districts for: Most diverse schools (Top 1%)
What is the racial composition of students in Byron Union Elementary School District?
42% of Byron Union Elementary School District students are White, 35% of students are Hispanic, 10% of students are Two or more races, 6% of students are Asian, 5% of students are Black, 1% of students are American Indian, and 1% of students are Hawaiian.
What is the student/teacher ratio of Byron Union Elementary School District?
Byron Union Elementary School District has a student/teacher ratio of 21:1, which is lower than the California state average of 22:1.
What is Byron Union Elementary School District's spending/student ratio?
The school district's spending/student of $17,384 is less than the state median of $22,604. The school district spending/student has grown by 13% over four school years.
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