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Discovery Bay Elementary

Q: Is Discovery Bay Elementary a good school?

Discovery Bay Elementary ranks 975 th of 5857 California elementary schools. SchoolDigger rates this school 4 stars out of 5.

Public Grades K-5

975^th

SchoolDigger Rank ?

of 5,857 California Elementary Schools

Better than 83% of California elementary schools

Summary

Discovery Bay Elementary is a high-performing K-5 public school serving 417 students in the heart of Discovery Bay, California, operating within the Byron Union Elementary School District.

The school consistently achieves strong academic results, with recent proficiency rates in English (68.63%) and Math (61.27%) that are significantly higher than both the district and state averages. It ranks in the 83rd percentile statewide, a notable improvement from the previous year, and demonstrates remarkable effectiveness in supporting students from economically disadvantaged backgrounds. While the school serves a population with a moderate level of economic need, it achieves these outcomes with efficient use of resources, spending less per student than several nearby schools that have lower academic performance.

When compared to other local schools, Discovery Bay Elementary stands out. It dramatically outperforms its closest district peer, Timber Point Elementary, and achieves better results than more affluent schools like Old River Elementary. The school has shown impressive resilience and recovery in academic performance since the pandemic. An area for potential growth is chronic absenteeism, which, while slightly below the state average, is higher than the district's rate. Overall, the school's decade-long record of consistent, high achievement makes it a standout success in the region.

417

Students ?

21.4

Student/teacher ratio ?

$24,193

Per pupil spending ?

41.2%

Free/discounted lunch ?

1700 Willow Lake Rd.
Discovery Bay, CA 94505-9375

(925) 809-7540

District: Byron Union Elementary

Students who attend Discovery Bay Elementary usually attend:

Middle:	Excelsior Middle
High:	Liberty High

Racial breakdown:

Hispanic:

41.7%

White:

38.4%

Two or more races:

10.6%

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At a glance

▬ Ranking trend: Holding steady — 85th percentile in 2013 → 83rd in 2025

Strengths

✓Test scores above the California average (63% vs 41% meeting standards)

✓Ranks in the top 17% of California elementary schools

Students meeting standards (2024-2025) ?

This school63%

District avg46%

California avg41%

975^th of 5,857

California public elementary schools ?

Top 17%▲ up 2 pts since 2015

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

1^st of 2Elementary Schools in the Byron Union Elementary

635^th of 1,543Byron Union Elementary among California districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	83.8	975 of 5857	83.4%	★★★★☆
2024	74.4	1389 of 5869	76.3%	★★★★☆
2023	77.2	1268 of 5859	78.4%	★★★★☆
2022	80.7	1157 of 5883	80.3%	★★★★☆
2019	74.3	1414 of 5789	75.6%	★★★★☆
2018	73.7	1414 of 5662	75.0%	★★★★☆
2017	66.1	1748 of 5692	69.3%	★★★☆☆
2016	78.2	1196 of 5614	78.7%	★★★★☆
2015	82.3	1021 of 5611	81.8%	★★★★☆
2013	83.6	844 of 5530	84.7%	★★★★☆
2012	85.1	729 of 5390	86.5%	★★★★☆
2011	69.6	1506 of 5377	72.0%	★★★★☆
2010	73.5	1304 of 5314	75.5%	★★★★☆
2009	62.5	1791 of 5193	65.5%	★★★☆☆
2008	68.7	1465 of 5113	71.3%	★★★★☆
2007	57.9	1931 of 5113	62.2%	★★★☆☆
2006	44.2	2490 of 4818	48.3%	★★☆☆☆
2005	50.8	2152 of 4822	55.4%	★★★☆☆
2004	58.4	1782 of 4809	62.9%	★★★☆☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2019	90.5	169 of 2585	93.5%	★★★★★
2018	73.3	367 of 2128	82.8%	★★★★☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	83.6	903 of 5597	83.9%	★★★★☆
2024	72.7	1375 of 5612	75.5%	★★★★☆
2023	78.0	1177 of 5609	79.0%	★★★★☆
2022	84.0	912 of 5635	83.8%	★★★★☆
2019	83.3	905 of 5492	83.5%	★★★★☆
2018	80.0	1047 of 5413	80.7%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2025	83.1	616 of 5107	87.9%	★★★★☆
2024	78.8	762 of 5107	85.1%	★★★★☆
2023	76.9	881 of 5087	82.7%	★★★★☆
2022	84.4	577 of 5084	88.7%	★★★★☆
2019	73.1	1007 of 4963	79.7%	★★★★☆
2018	62.7	1502 of 4830	68.9%	★★★☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	78.9	821 of 5460	85.0%	★★★★☆
2024	79.5	855 of 5517	84.5%	★★★★☆
2023	60.8	1702 of 5363	68.3%	★★★☆☆
2022	80.8	726 of 5264	86.2%	★★★★☆
2019	61.5	1675 of 5173	67.6%	★★★☆☆
2018	77.5	795 of 5084	84.4%	★★★★☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	80.9	1026 of 5628	81.8%	★★★★☆
2024	73.9	1331 of 5643	76.4%	★★★★☆
2023	69.9	1511 of 5638	73.2%	★★★★☆
2022	72.2	1423 of 5663	74.9%	★★★★☆
2019	63.0	1822 of 5510	66.9%	★★★☆☆
2018	62.1	1843 of 5431	66.1%	★★★☆☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	75.0	585 of 2598	77.5%	★★★★☆
2024	59.1	1160 of 2651	56.2%	★★★☆☆
2023	67.3	888 of 2661	66.6%	★★★☆☆
2022	61.8	1090 of 2726	60.0%	★★★☆☆
2019	62.0	1132 of 2834	60.1%	★★★☆☆
2018	61.6	1144 of 2737	58.2%	★★★☆☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

Disabled (2019)93rd percentile+18 vs school

Hispanic (2025)88th percentile+5 vs school

Low Socio Economic Status (2025)85th percentile~ school

Female (2025)84th percentile~ school

Male (2025)82nd percentile~ school

White (2025)77th percentile-6 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy69%+20 vs state

Mathematics61%+24 vs state

Science51%+18 vs state

★

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Schools Near Discovery Bay Elementary

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Immunizations Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				CAST Science (2025)			Smarter Balanced Assessments English Language Arts/Literacy (2025)							Smarter Balanced Assessments Mathematics (2025)							% Completely Immunized (2022)	% Polio (2022)	% Hepatitis B (2022)	% Varicella (2022)	% DTP (2022)	% MMR (2022)	Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	CAST Science 5th Grade	CAST Science 8th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 3rd Grade	Smarter Balanced Assessments English Language Arts/Literacy 4th Grade	Smarter Balanced Assessments English Language Arts/Literacy 5th Grade	Smarter Balanced Assessments English Language Arts/Literacy 6th Grade	Smarter Balanced Assessments English Language Arts/Literacy 7th Grade	Smarter Balanced Assessments English Language Arts/Literacy 8th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 3rd Grade	Smarter Balanced Assessments Mathematics 4th Grade	Smarter Balanced Assessments Mathematics 5th Grade	Smarter Balanced Assessments Mathematics 6th Grade	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics All Grades	% Completely Immunized KG	% Polio KG	% Hepatitis B KG	% Varicella KG	% DTP KG	% MMR KG	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Discovery Bay Elementary	Public	K-5	1700 Willow Lake Rd.	Discovery Bay	94505	Contra Costa County	Byron Union Elementary	No	(n/a)	No	(n/a)	(925) 809-7540	417	19	21.4	41.2%	160 (38.4%)	8 (1.9%)	174 (41.7%)	20 (4.8%)	6 (1.4%)	5 (1.2%)	44 (10.6%)	83.8	975^th of 5857 public elementary schools	83.4%		74.4	1389^th of 5869 public elementary schools	76.3%	414	50.8		50.8	73.7	63.9	67.2				68.6	77.6	52.5	50.8				61.3	86.6	86.6	92.5	88.1	88.1	86.6	$24,193	$23,420	$773
Timber Point Elementary	Public	K-5	40 Newbury Ln.	Discovery Bay	94505	Contra Costa County	Byron Union Elementary	No	(n/a)	No	(n/a)	(925) 809-7550	362	15	24.6	26.0%	157 (43.4%)	20 (5.5%)	113 (31.2%)	20 (5.5%)	3 (0.8%)	1 (0.3%)	48 (13.3%)	53.2	2406^th of 5857 public elementary schools	58.9%		57.6	2166^th of 5869 public elementary schools	63.1%	240	34.5		34.5	37.7	43.3	50.0				43.9	49.1	43.3	43.1				45.0	68.4	93.0	93.0	96.5	93.0	93.0	$26,063	$25,588	$475
Byron Institute for Independent Study	Public, Virtual	K-8	40 Newbury Ln.	Discovery Bay	94505	Contra Costa County	Byron Union Elementary	No	(n/a)	Yes	(n/a)	(925) 809-7550	26	1	28.2	42.3%	7 (26.9%)	4 (15.4%)	10 (38.5%)	2 (7.7%)	0 (0.0%)	1 (3.8%)	2 (7.7%)								(n/a)		11.8	10.5						17.7	12.9						23.5	22.6							$9,241	$9,224	$17
Old River Elementary	Public	K-8	30 Learning Ln.	Brentwood	94513	Contra Costa County	Knightsen Elementary	No	(n/a)	No	(n/a)	(925) 626-3330	332	15	22.5	15.4%	153 (46.1%)	10 (3.0%)	125 (37.7%)	16 (4.8%)	0 (0.0%)	3 (0.9%)	25 (7.5%)	63.6	1899^th of 5857 public elementary schools	67.6%		67.2	1719^th of 5869 public elementary schools	70.7%	180	36.7	32.1	34.5	51.9	65.6	43.3	46.9	78.6	50.0	55.4	57.4	59.4	27.6	43.8	67.9	46.4	51.2							$21,678	$20,806	$872
Garin Elementary	Public	K-5	250 First St.	Brentwood	94513	Contra Costa County	Brentwood Union	No	(n/a)	No	(n/a)	(925) 513-6370	785	32	24.5	41.5%	244 (31.1%)	59 (7.5%)	286 (36.4%)	112 (14.3%)	3 (0.4%)	5 (0.6%)	76 (9.7%)	62	1967^th of 5857 public elementary schools	66.4%		63.9	1882^nd of 5869 public elementary schools	67.9%	85	30.5		30.5	61.7	59.6	50.8				57.3	62.2	48.0	25.2				44.7	95.9	95.9		96.7	95.9	96.7	$13,881	$12,540	$1,341
Knightsen Elementary	Public	K-8	1923 Delta Rd.	Knightsen	94548	Contra Costa County	Knightsen Elementary	No	(n/a)	No	(n/a)	(925) 625-0073	316	14	23.0	38.0%	130 (41.1%)	5 (1.6%)	157 (49.7%)	1 (0.3%)	3 (0.9%)	0 (0.0%)	20 (6.3%)	39.5	3258^th of 5857 public elementary schools	44.4%		33.7	3629^th of 5869 public elementary schools	38.2%	371	31.4	45.7	39.5	40.7	42.4	40.0	35.9	46.9	58.7	44.3	48.2	42.4	11.4	28.3	25.0	41.3	32.3							$28,786	$27,324	$1,462
Mary Casey Black Elementary	Public	K-5	480 Farmington Dr.	Brentwood	94513	Contra Costa County	Brentwood Union	No	(n/a)	No	(n/a)	(925) 513-6430	680	27	25.1	47.1%	157 (23.1%)	33 (4.9%)	303 (44.6%)	102 (15.0%)	1 (0.1%)	2 (0.3%)	82 (12.1%)	51.8	2512^th of 5857 public elementary schools	57.1%		36.4	3412^th of 5869 public elementary schools	41.9%	900	29.9		29.9	57.3	47.3	44.3				49.7	50.0	37.4	29.9				39.1	95.9	97.5	98.4	96.7	97.5	97.5	$12,829	$11,360	$1,469
Summer Lake Elementary	Public	K-5	4320 East Summer Lake Dr.	Oakley	94561	Contra Costa County	Oakley Union Elementary	No	(n/a)	No	(n/a)	(925) 625-6730	595	25	23.8	43.9%	132 (22.2%)	71 (11.9%)	229 (38.5%)	98 (16.5%)	3 (0.5%)	2 (0.3%)	60 (10.1%)	38.1	3339^th of 5857 public elementary schools	43.0%		42.6	3031^st of 5869 public elementary schools	48.4%	308	26.4		26.4	36.6	48.4	36.8				40.8	35.4	33.0	26.7				31.7							$20,262	$19,426	$836
Brentwood Elementary	Public	K-5	200 Griffith Ln.	Brentwood	94513	Contra Costa County	Brentwood Union	No	(n/a)	No	(n/a)	(925) 513-6360	811	33	24.9	45.6%	222 (27.4%)	76 (9.4%)	317 (39.1%)	101 (12.5%)	2 (0.2%)	7 (0.9%)	86 (10.6%)	59.4	2094^th of 5857 public elementary schools	64.2%		61.6	1997^th of 5869 public elementary schools	66.0%	97	33.3		33.3	51.1	51.8	53.0				52.0	55.6	43.3	35.6				44.9	95.8	97.9		95.8	97.2	97.2	$14,249	$13,014	$1,235
Marsh Creek Elementary	Public	K-5	601 Grant St.	Brentwood	94513	Contra Costa County	Brentwood Union	No	(n/a)	No	(n/a)	(925) 513-6420	550	24	22.9	52.4%	105 (19.1%)	56 (10.2%)	240 (43.6%)	72 (13.1%)	4 (0.7%)	9 (1.6%)	64 (11.6%)	55.6	2264^th of 5857 public elementary schools	61.3%		63.3	1915^th of 5869 public elementary schools	67.4%	349	39.5		39.5	41.7	40.3	58.6				49.1	53.4	27.3	39.1				39.6							$15,382	$13,580	$1,802

Frequently Asked Questions about Discovery Bay Elementary

What is the racial makeup of Discovery Bay Elementary?

Students at Discovery Bay Elementary are 42% Hispanic, 38% White, 11% Two or more races, 5% Asian, 2% African American, 1% American Indian, 1% Pacific Islander.

What district is Discovery Bay Elementary in?

Byron Union Elementary

What schools do graduates of Discovery Bay Elementary attend?

Students who attend Discovery Bay Elementary usually go on to attend:

Middle : Excelsior Middle
High : Liberty High

How many students attend Discovery Bay Elementary?

In the 2024-25 school year, 417 students attended Discovery Bay Elementary.

Is Discovery Bay Elementary a good school?

Discovery Bay Elementary ranks 975^th of 5857 California elementary schools. SchoolDigger rates this school 4 stars out of 5.

Rate Discovery Bay Elementary!

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Latest California data All new data »

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

2024–25 CSA Spanish test scoresDec 22, 2025

2024–25 dropout rates & graduation ratesNov 14, 2025

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.