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Summer Lake Elementary

Q: Is Summer Lake Elementary a good school?

Summer Lake Elementary ranks 3419 th of 5804 California elementary schools. SchoolDigger rates this school 2 stars out of 5.

Public Grades K-5

3419^th

SchoolDigger Rank ?

of 5,804 California Elementary Schools

Better than 41% of California elementary schools

Summary

Summer Lake Elementary is a K–5 school serving 595 students in Oakley, California, in the Oakley Union Elementary district. In 2025–2026, the school was below California’s proficiency rate in English language arts (ELA), math, and science, but above its district in all three. The most important takeaway is that beating the district has not made the school a local standout: it ranked fifth of nine nearby K–5 schools in ELA and math, and sixth in science.

Science is the school’s strongest subject compared with the district and state, while fourth-grade math is a particular weak spot. In 2025–2026, 33% of students were proficient in science, 11 percentage points above the district and 3 below the state; the result was 6 points above the nearby-school average. ELA proficiency was 39%, nearly matching the nearby average and 3 points above the district, but 10 below the state. Math was 32%, 8 points above the district yet 3 points below the nearby average and 7 below the state. By grade, fifth-grade ELA reached 44%, third among nine comparable schools, while fourth-grade math was 27%, seventh among nine and 16 points below the state.

Science has improved most over time: proficiency rose 8 points from 2022–2023 to 2025–2026, while the state gained 6 points. ELA rose just 1 point as the state gained 3, widening the school’s gap to the state to 10 points. Chronic absenteeism fell from 32% in 2021–2022 to 23% in 2025–2026, but remained 5 points above the state; the figures do not show that absenteeism caused the test results. Summer Lake Elementary is at the 41st percentile and has 2 stars in SchoolDigger’s ranking. Its 2024–2025 student–teacher ratio was 23.8, and 44% of students were eligible for free or reduced-price lunch that year, near the middle of nearby schools. SchoolDigger’s statewide effectiveness ranking for Special Education Students rose to the 67th percentile in 2025–2026, from the 47th percentile in 2023–2024; its ranking for White Students was lower, at the 12th percentile, compared with 41st overall.

595

Students ?

23.8

Student/teacher ratio ?

$20,262

Per pupil spending ?

43.9%

Free/reduced lunch eligible (2024-25) ?

All students in California receive free school meals.

4320 East Summer Lake Dr.
Oakley, CA 94561

(925) 625-6730

District: Oakley Union Elementary

Racial breakdown:

Hispanic:

38.5%

White:

22.2%

Asian:

16.5%

See top rated California elementary schools

Compare Summer Lake Elementary to nearby elementary schools!

At a glance

▬ Ranking trend: Holding steady — 45th percentile in 2022 → 41st in 2026

Worth a look

!Test scores below the California average (35% vs 42% meeting standards)

!Some student groups rank well below the school's overall statewide standing

!English Language Arts/Literacy scores 10 pts below the California average

Students meeting standards (2025-2026) ?

This school35%

District avg28%

California avg42%

3,419^th of 5,804

California public elementary schools ?

Bottom 41%▼ down 4 pts since 2022

From bottom 45% (2022) to bottom 41% (2026)

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

3^rd of 7Elementary Schools in the Oakley Union Elementary

729^th of 968Oakley 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
2026	37.2	3419 of 5804	41.1%	★★☆☆☆
2025	38.1	3339 of 5857	43.0%	★★☆☆☆
2024	42.6	3031 of 5869	48.4%	★★☆☆☆
2023	36.0	3423 of 5859	41.6%	★★☆☆☆
2022	38.2	3208 of 5883	45.5%	★★☆☆☆

African American

Year	Avg score	Statewide rank	California percentile	Rating
2026	60.7	150 of 506	70.4%	★★★★☆
2023	60.9	195 of 661	70.5%	★★★★☆
2022	52.4	238 of 663	64.1%	★★★☆☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	42.2	1674 of 3162	47.1%	★★☆☆☆
2023	38.7	1910 of 3245	41.1%	★★☆☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2026	42.7	2973 of 5569	46.6%	★★☆☆☆
2025	38.1	3219 of 5597	42.5%	★★☆☆☆
2024	43.2	2845 of 5612	49.3%	★★☆☆☆
2023	34.1	3408 of 5609	39.2%	★★☆☆☆
2022	41.2	2928 of 5635	48.0%	★★☆☆☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2026	41.0	2940 of 5085	42.2%	★★☆☆☆
2025	39.3	3073 of 5107	39.8%	★★☆☆☆
2024	29.7	3764 of 5107	26.3%	★☆☆☆☆
2023	32.2	3521 of 5087	30.8%	★★☆☆☆
2022	37.3	3120 of 5084	38.6%	★★☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2026	34.0	3650 of 5412	32.6%	★★☆☆☆
2025	36.7	3452 of 5460	36.8%	★★☆☆☆
2024	41.0	3065 of 5517	44.4%	★★☆☆☆
2023	37.5	3272 of 5363	39.0%	★★☆☆☆
2022	34.4	3486 of 5264	33.8%	★★☆☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2026	32.3	3672 of 5590	34.3%	★★☆☆☆
2025	38.2	3259 of 5628	42.1%	★★☆☆☆
2024	41.2	2987 of 5643	47.1%	★★☆☆☆
2023	39.2	3107 of 5638	44.9%	★★☆☆☆
2022	35.3	3333 of 5663	41.1%	★★☆☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2026	54.5	956 of 2920	67.3%	★★★☆☆
2025	43.2	1319 of 2847	53.7%	★★★☆☆
2024	38.8	1393 of 2635	47.1%	★★☆☆☆
2023	40.2	1212 of 2420	49.9%	★★☆☆☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2026	14.6	2234 of 2532	11.8%	★☆☆☆☆
2025	11.3	2375 of 2598	8.6%	☆☆☆☆☆
2024	29.9	1964 of 2651	25.9%	★☆☆☆☆
2023	20.4	2217 of 2661	16.7%	★☆☆☆☆
2022	16.0	2368 of 2726	13.1%	★☆☆☆☆

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)

African American (2026)70th percentile+29 vs school

Special Education (2026)67th percentile+26 vs school

English Language Learner (2024)47th percentile~ school

Female (2026)47th percentile+6 vs school

Hispanic (2026)42nd percentile~ school

Male (2026)34th percentile-7 vs school

Low Socio Economic Status (2026)33rd percentile-9 vs school

White (2026)12th percentile-29 vs school

By subject vs California (2025-2026) ?

English Language Arts/Literacy39%-10 vs state

Science33%-3 vs state

Mathematics32%-7 vs state

★

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Schools Near Summer Lake 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 (2026)				Ranking (2025)				CAST Science (2026)			Smarter Balanced Assessments English Language Arts/Literacy (2026)							Smarter Balanced Assessments Mathematics (2026)							% 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/reduced lunch (2024-25)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	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
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%)	37.2	3419^th of 5804 public elementary schools	41.1%		38.1	3339^th of 5857 public elementary schools	43.0%	80	32.6		32.6	34.1	39.0	43.7				38.9	39.8	26.8	27.7				31.6							$20,262	$19,426	$836
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%)	33.6	3686^th of 5804 public elementary schools	36.5%		39.5	3258^th of 5857 public elementary schools	44.4%	428	33.3	29.0	31.0	45.8	35.7	37.0	44.1	37.0	61.3	42.9	29.2	21.4	18.5	23.5	29.6	35.5	26.8							$28,786	$27,324	$1,462
Old River Elementary	Public	K-8	30 Learning Ln.	Brentwood	94548	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%)	64.5	1846^th of 5804 public elementary schools	68.2%		63.6	1899^th of 5857 public elementary schools	67.6%	53	37.8	43.3	40.3	59.5	54.0	55.3	51.6	54.6	75.0	57.6	64.9	56.0	21.1	41.9	45.5	53.3	47.5							$21,678	$20,806	$872
Iron House Elementary	Public	K-5	4801 Frank Hengel Way	Oakley	94561	Contra Costa County	Oakley Union Elementary	No	(n/a)	No	(n/a)	(925) 625-6825	503	21	24.5	44.9%	88 (17.5%)	92 (18.3%)	183 (36.4%)	91 (18.1%)	0 (0.0%)	3 (0.6%)	46 (9.1%)	26.8	4238^th of 5804 public elementary schools	27.0%		29.4	4012^th of 5857 public elementary schools	31.5%	226	19.6		19.6	35.2	35.2	28.8				33.5	31.0	34.1	8.6				26.3							$21,445	$20,570	$875
Gehringer Elementary	Public	K-5	100 Simoni Ranch Rd.	Oakley	94561	Contra Costa County	Oakley Union Elementary	No	(n/a)	No	(n/a)	(925) 625-7070	663	28	23.5	44.3%	148 (22.3%)	52 (7.8%)	350 (52.8%)	54 (8.1%)	0 (0.0%)	0 (0.0%)	59 (8.9%)	42.5	3075^th of 5804 public elementary schools	47.0%		43.3	2987^th of 5857 public elementary schools	49.0%	88	28.7		28.7	40.0	44.4	41.8				42.0	37.6	39.8	32.7				36.8							$19,057	$18,240	$817
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%)	48.9	2667^th of 5804 public elementary schools	54.0%		51.8	2512^th of 5857 public elementary schools	57.1%	155	32.6		32.6	39.0	58.7	40.2				45.9	41.2	53.8	23.9				39.7	95.9	97.5	98.4	96.7	97.5	97.5	$12,829	$11,360	$1,469
Isaac R. Montanez Elementary	Public	K-5	2340 Smith Rd.	Brentwood	94513	Contra Costa County	Brentwood Union	No	(n/a)	No	(n/a)	(925) 513-6100	444	18	24.6	33.3%	107 (24.1%)	27 (6.1%)	124 (27.9%)	138 (31.1%)	1 (0.2%)	3 (0.7%)	44 (9.9%)	72.8	1450^th of 5804 public elementary schools	75.0%					(n/a)	42.7		42.7	50.0	64.5	59.8				58.2	68.9	59.2	40.2				55.6							$15,525	$13,590	$1,935
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%)	44.9	2913^th of 5804 public elementary schools	49.8%		55.6	2264^th of 5857 public elementary schools	61.3%	649	33.3		33.3	38.7	40.5	46.4				42.1	41.3	42.7	31.0				38.0							$15,382	$13,580	$1,802
Laurel Elementary	Public	K-5	1141 Laurel Rd.	Oakley	94561	Contra Costa County	Oakley Union Elementary	No	(n/a)	No	(n/a)	(925) 625-7090	342	16	21.3	41.2%	113 (33.0%)	11 (3.2%)	182 (53.2%)	17 (5.0%)	0 (0.0%)	1 (0.3%)	18 (5.3%)	20.2	4788^th of 5804 public elementary schools	17.5%		25.6	4346^th of 5857 public elementary schools	25.8%	442	10.7		10.7	22.9	27.5	16.1				21.9	39.6	37.3	10.5				28.2							$27,967	$26,992	$975
Oakley Elementary	Public	K-5	501 Norcross Ln.	Oakley	94561	Contra Costa County	Oakley Union Elementary	No	(n/a)	No	(n/a)	(925) 625-7050	379	18	21.0	54.4%	74 (19.5%)	10 (2.6%)	241 (63.6%)	26 (6.9%)	1 (0.3%)	2 (0.5%)	25 (6.6%)	23.5	4504^th of 5804 public elementary schools	22.4%		19.1	4913^th of 5857 public elementary schools	16.1%	409	21.8		21.8	37.0	18.6	34.6				29.4	41.7	13.3	18.2				23.3							$30,888	$29,810	$1,078

Frequently Asked Questions about Summer Lake Elementary

Is Summer Lake Elementary a good school?

Summer Lake Elementary ranks 3419^th of 5804 California elementary schools. SchoolDigger rates this school 2 stars out of 5.

What is the racial makeup of Summer Lake Elementary?

Students at Summer Lake Elementary are 38% Hispanic, 22% White, 16% Asian, 12% African American, 10% Two or more races.

What district is Summer Lake Elementary in?

Oakley Union Elementary

How many students attend Summer Lake Elementary?

In the 2024-25 school year, 595 students attended Summer Lake Elementary.

Rate Summer Lake Elementary!

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Latest California data All new data »

2025–26 attendance data, dropout rates & graduation ratesNewOct 15, 2026

2025–26 CAST, CSA Spanish & Smarter Balanced Assessments scoresNewOct 15, 2026

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

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.