Home > California > Contra Costa County

Byron Union Elementary School District

Item: Byron Union Elementary School District
Rating: 7
Author: Public School Review

14301 Byron Hwy.
Byron, CA 94514-2515

( shown in map)

Top 50%

Tel: (925) 809-7502

Visit School District Website

Top Rankings

Byron Union Elementary School District ranks among the top 20% of public school district in California for:

Overview

This School District

This State (CA)

# Schools

4 Schools

7,693 Schools

# Students

1,238 Students

3,822,438 Students

# Teachers

61 Teachers

173,961 Teachers

Student-Teacher Ratio

20:1

Student By Grade

View Data

Comparison of Students By Grade Trends
Grade	Byron Union Elementary School District	California
Kind	156	254
1	123	194
2	128	203
3	118	204
4	142	209
5	132	211
6	133	212
7	142	153
8	164	153

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

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.

This School District

State Average (CA)

#643 out of 1932 school districts
(Top 50%)

View Data

Overall School District Rank Trends
Year	Byron Union Elementary School District
2023	#643
2022	#747
2021	#292
2019	#680
2018	#297
2017	#404
2016	#205
2015	#210
2013	#260
2012	#315
2011	#340

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

43%

34%

View Data

Math Proficiency Trends
Year	Byron Union Elementary School District	California
2023	43%	34%
2022	37%	33%
2021	50%	34%
2019	45%	40%
2018	46%	39%
2017	42%	38%
2016	52%	37%
2015	49%	34%
2013	66%	59%
2012	65%	59%
2011	62%	58%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

43%

47%

View Data

Reading and Language Arts Proficiency Trends
Year	Byron Union Elementary School District	California
2022	43%	47%
2021	50%	49%
2019	51%	51%
2018	46%	50%
2017	46%	48%
2016	56%	48%
2015	53%	44%
2013	66%	57%
2012	63%	58%
2011	60%	56%
2010	57%	54%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

27%

29%

(21-22)

≥95%

87%

Students by Ethnicity:

0.69

0.64

View Data

Comparison of Diversity Score Trends
Year	Byron Union Elementary School District	California
2024	0.69	0.63
2023	0.68	0.64
2022	0.65	0.63
2021	0.64	0.62
2020	0.61	0.63
2019	0.61	0.63
2018	0.58	0.64
2017	0.58	0.64
2016	0.57	0.64
2015	0.54	0.64
2014	0.54	0.65
2013	0.53	0.65
2012	0.52	0.65
2011	0.52	0.67
2010	0.52	0.67
2009	0.52	0.71
2008	0.49	0.65
2007	0.53	0.67
2006	0.46	0.66
2005	0.47	0.67
2004	0.43	0.67
2003	0.36	0.67
2002	0.37	0.67
2001	0.37	0.67
2000	0.34	0.67
1999	0.34	0.67
1998	0.34	0.67
1997	0.31	0.67
1996	0.32	0.67
1995	0.32	0.67
1994	0.32	0.67
1993	0.31	0.67
1992	0.26	0.67
1991	0.25	0.67
1990	0.26	0.66
1989	0.23	0.65
1988	0.26	0.65

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% American Indian

View Data

American Indian Student Percentage Comparison Over Years (1991-2024)
Year	Byron Union Elementary School District	California
2024	2%	1%
2023	1%	1%
2022	2%	1%
2020	2%	1%
2019	2%	1%
2018	2%	1%
2017	2%	1%
2016	2%	1%
2015	4%	1%
2014	2%	1%
2013	2%	1%
2012	2%	1%
2011	2%	1%
2010	2%	1%
2009	1%	1%
2008	1%	1%
2007	3%	2%
2006	1%	1%
2005	2%	2%
2004	2%	2%
2003	3%	2%
2002	3%	2%
2001	2%	2%
2000	2%	1%
1999	2%	1%
1998	1%	1%
1997	2%	1%
1996	1%	1%
1995	1%	1%
1994	2%	1%
1993	2%	1%
1992	1%	1%
1991	1%	1%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Asian

12%

View Data

Asian Student Percentage Comparison Over Years (1988-2024)
Year	Byron Union Elementary School District	California
2024	6%	12%
2023	6%	12%
2022	4%	12%
2021	4%	12%
2020	4%	12%
2019	4%	12%
2018	5%	11%
2017	5%	11%
2016	5%	11%
2015	5%	11%
2014	4%	11%
2013	5%	11%
2012	6%	11%
2011	6%	11%
2010	6%	11%
2009	6%	11%
2008	7%	12%
2007	9%	12%
2006	6%	12%
2005	6%	12%
2004	6%	12%
2003	4%	11%
2002	4%	11%
2001	4%	11%
2000	3%	11%
1999	2%	11%
1998	3%	11%
1997	2%	11%
1996	3%	11%
1995	4%	11%
1994	3%	11%
1993	3%	11%
1992	3%	11%
1991	2%	11%
1990	2%	10%
1989	2%	10%
1988	2%	10%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Hispanic

31%

55%

View Data

Hispanic Student Percentage Comparison Over Years (1988-2024)
Year	Byron Union Elementary School District	California
2024	31%	56%
2023	29%	55%
2022	28%	56%
2021	27%	56%
2020	24%	55%
2019	24%	55%
2018	24%	54%
2017	24%	54%
2016	23%	54%
2015	19%	54%
2014	20%	53%
2013	18%	53%
2012	18%	52%
2011	17%	51%
2010	17%	50%
2009	18%	49%
2008	18%	50%
2007	21%	49%
2006	18%	48%
2005	17%	47%
2004	16%	46%
2003	14%	45%
2002	15%	44%
2001	15%	43%
2000	13%	42%
1999	13%	41%
1998	14%	40%
1997	12%	40%
1996	12%	39%
1995	11%	38%
1994	13%	37%
1993	12%	36%
1992	10%	35%
1991	11%	34%
1990	11%	33%
1989	10%	31%
1988	11%	30%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Black

View Data

Black Student Percentage Comparison Over Years (1992-2024)
Year	Byron Union Elementary School District	California
2024	6%	5%
2023	7%	5%
2022	7%	5%
2021	7%	5%
2020	6%	5%
2019	6%	5%
2018	4%	6%
2017	4%	6%
2016	5%	6%
2015	5%	6%
2014	4%	6%
2013	5%	6%
2012	5%	6%
2011	6%	7%
2010	7%	7%
2009	6%	7%
2008	5%	8%
2007	7%	8%
2006	4%	8%
2005	5%	8%
2004	3%	8%
2001	1%	8%
2000	2%	9%
1999	1%	9%
1998	2%	9%
1997	1%	9%
1996	1%	9%
1995	1%	9%
1994	1%	9%
1993	1%	9%
1992	1%	9%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% White

45%

21%

View Data

White Student Percentage Comparison Over Years (1988-2024)
Year	Byron Union Elementary School District	California
2024	45%	20%
2023	48%	21%
2022	51%	21%
2021	53%	22%
2020	58%	23%
2019	58%	23%
2018	60%	24%
2017	60%	24%
2016	61%	24%
2015	65%	24%
2014	65%	25%
2013	66%	25%
2012	67%	26%
2011	67%	27%
2010	67%	27%
2009	67%	28%
2008	69%	29%
2007	57%	29%
2006	71%	31%
2005	70%	31%
2004	73%	32%
2003	79%	34%
2002	78%	35%
2001	78%	36%
2000	80%	37%
1999	81%	38%
1998	80%	39%
1997	82%	39%
1996	82%	40%
1995	82%	41%
1994	81%	42%
1993	82%	43%
1992	85%	44%
1991	86%	45%
1990	86%	47%
1989	87%	49%
1988	85%	50%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Hawaiian

n/a

View Data

Native Hawaiian or Pacific Islander Student Percentage Comparison Over Years (2009-2015)
Year	Byron Union Elementary School District	California
2015	2%	1%
2014	1%	1%
2013	1%	1%
2012	1%	1%
2011	1%	1%
2010	1%	1%
2009	1%	1%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2011-2024)
Year	Byron Union Elementary School District	California
2024	9%	6%
2023	8%	6%
2022	7%	5%
2021	6%	5%
2020	4%	4%
2019	4%	4%
2018	4%	4%
2017	4%	4%
2016	3%	4%
2014	4%	3%
2013	3%	3%
2012	1%	3%
2011	1%	2%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

All Ethnic Groups

District Revenue and Spending

The revenue/student of $16,230 in this school district is less than the state median of $19,976. The school district revenue/student has grown by 19% over four school years.

The school district's spending/student of $13,542 is less than the state median of $18,397. The school district spending/student has grown by 12% over four school years.

This School District

This State (CA)

Total Revenue

$20 MM

$116,387 MM

View Data

Total Revenues Trends
Year	Byron Union Elementary School District	California
2023	$20 MM	$8 MM
2022	$19 MM	$7 MM
2021	$20 MM	$8 MM
2020	$19 MM	$7 MM
2019	$22 MM	$7 MM
2018	$21 MM	$29 MM
2017	$64 MM	$26 MM
2016	$19 MM	$24 MM
2015	$13 MM	$17 MM
2014	$14 MM	$21 MM
2012	$15 MM	$19 MM
2011	$19 MM	$19 MM
2010	$13 MM	$17 MM
2009	$14 MM	$19 MM
2008	$14 MM	$19 MM
2007	$15 MM	$19 MM
2006	$12 MM	$17 MM
2005	$10 MM	$16 MM
2004	$9 MM	$16 MM
2003	$9 MM	$16 MM
2002	$9 MM	$15 MM
2001	$8 MM	$15 MM
2000	$10 MM	$13 MM
1999	$7 MM	$12 MM
1998	$6 MM	$11 MM
1997	$5 MM	$10 MM
1996	$6 MM	$9 MM
1995	$8 MM	$8 MM

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Spending

$17 MM

$107,188 MM

View Data

Total Expenditure Trends
Year	Byron Union Elementary School District	California
2023	$17 MM	$7 MM
2022	$17 MM	$7 MM
2021	$17 MM	$7 MM
2020	$17 MM	$7 MM
2019	$19 MM	$7 MM
2018	$21 MM	$29 MM
2017	$65 MM	$24 MM
2016	$20 MM	$23 MM
2015	$18 MM	$18 MM
2014	$14 MM	$21 MM
2012	$20 MM	$19 MM
2011	$20 MM	$19 MM
2010	$18 MM	$18 MM
2009	$16 MM	$18 MM
2008	$16 MM	$19 MM
2007	$13 MM	$18 MM
2006	$11 MM	$17 MM
2005	$10 MM	$16 MM
2004	$9 MM	$17 MM
2003	$9 MM	$15 MM
2002	$9 MM	$16 MM
2001	$9 MM	$14 MM
2000	$9 MM	$13 MM
1999	$6 MM	$11 MM
1998	$5 MM	$11 MM
1997	$5 MM	$10 MM
1996	$7 MM	$8 MM
1995	$6 MM	$8 MM

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Revenue / Student

$16,230

$19,976

View Data

Average Revenue Per Student Trends
Year	Byron Union Elementary School District	California
2023	$16,376	$15,607
2022	$13,605	$14,213
2021	$15,234	$15,669
2020	$13,605	$14,213
2019	$14,615	$14,063
2018	$8,860	$16,033
2017	$28,714	$16,692
2016	$8,571	$15,604
2015	$8,352	$10,238
2014	$8,932	$11,786
2012	$8,998	$11,929
2011	$11,135	$11,681
2010	$7,882	$10,238
2009	$8,507	$11,099
2008	$8,764	$11,762
2007	$9,149	$11,879
2006	$7,748	$10,859
2005	$6,720	$10,445
2004	$6,647	$10,566
2003	$7,737	$10,456
2002	$7,318	$9,803
2001	$6,821	$10,568
2000	$9,185	$8,943
1999	$6,356	$8,203
1998	$5,933	$7,395
1997	$5,660	$6,922
1995	$8,908	$5,953
1992	$4,285	$5,430

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Spending / Student

$13,542

$18,397

View Data

Average Expenditure Per Student Trends
Year	Byron Union Elementary School District	California
2023	$13,663	$13,914
2022	$12,006	$13,602
2021	$12,710	$13,970
2020	$12,006	$13,602
2019	$13,153	$13,522
2018	$9,145	$16,124
2017	$28,927	$15,588
2016	$8,935	$14,779
2015	$11,244	$10,739
2014	$8,790	$11,804
2012	$11,955	$12,155
2011	$11,849	$11,509
2010	$10,612	$10,739
2009	$9,493	$10,975
2008	$9,429	$11,678
2007	$7,625	$11,317
2006	$6,932	$10,926
2005	$6,677	$10,789
2004	$6,699	$11,073
2003	$7,660	$10,210
2002	$7,688	$10,600
2001	$8,264	$10,007
2000	$7,947	$9,131
1999	$5,381	$7,911
1998	$5,068	$7,592
1997	$5,174	$6,759
1995	$7,020	$6,033
1992	$4,485	$5,588

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Best Byron Union Elementary School District Public Elementary Schools (2026)

School
(Math and Reading Proficiency)

Location

Quick Facts

Rank: #11.

Discovery Bay Elementary School

(Math: 59% | Reading: 60-64%)
:

Top 20%

Add to Compare

1700 Willow Lake Rd.
Discovery Bay, CA 94505
(925) 809-7540

Gr: K-5 | 438 students Student-teacher ratio: 22:1 Minority enrollment: 61%

Rank: #22.

Timber Point Elementary School

(Math: 40-44% | Reading: 35-39%)
:

Top 50%

Add to Compare

40 Newbury Ln.
Discovery Bay, CA 94505
(925) 809-7550

Gr: K-5 | 356 students Student-teacher ratio: 22:1 Minority enrollment: 54%

Rank: #33.

Excelsior Middle School

(Math: 36% | Reading: 39%)
:

Top 50%

Add to Compare

14301 Byron Hwy.
Byron, CA 94514
(925) 809-7530

Gr: 6-8 | 423 students Student-teacher ratio: 18:1 Minority enrollment: 49%

Rank: #44.

Byron Institute For Independent Study

Alternative School

(Math: ≤20% | Reading: 21-39%)
:

Bottom 50%

Add to Compare

40 Newbury Ln.
Discovery Bay, CA 94505
(925) 809-7550

Gr: K-8 | 21 students Student-teacher ratio: 11:1 Minority enrollment: 67%

Recent Articles

April 17, 2026

Helping Children Overcome First-Week School Anxiety

Learn practical strategies to help children overcome first-week school anxiety, with expert-backed tips for parents and educators.

April 17, 2026

Public School Immunization Requirements 2026–2027

Learn public school immunization and health requirements for 2026–2027, including vaccines, exemptions, and state policy updates.

April 17, 2026

Public Schools in a Minute: 2026 Snapshot Guide

A clear 2026 snapshot of public schools in the U.S., including enrollment, funding, trends, and what families should know.

Quick Facts (2026)

District size: 4 schools
Grades: K-12
Enrollment: 1,238 students
Student-Teacher Ratio: 20:1
Minority Enrollment: 55%
: ≥95%
: Top 50% in CA
: 43% (Top 30%)
: 43% (Top 50%)
: 27% (Top 50%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education

Quick Links

School Search Tools:

Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 75 Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 82 Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 88 Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 94 Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 100 Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 106 Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 112 Notice: Undefined property: MultipleSchoolsModel::$total in /home/devsarath/workspace/psr/public_html/include/srn_lib/psr/view/RegionQuickLinksView.inc.php on line 123

School by Type (CA):