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San Lorenzo Unified

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At a glance

1247^thof 1,530 California districts▼ 11

Better than 18% of California districts

Elementary 9 Middle 3 High 4Grades K-12

15510 Usher St.
San Lorenzo, CA 94580-1641·(510) 317-4600·All California district rankings →

Statewide performance 2017–2026

2026: better than 18.5% of districts

Schools

7,936

Students

Top rankedArroyo High997^th of 2,135 California high schools

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Biggest riser

Dayton Elementary up 365 spots statewide this year

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Smallest classes

Royal Sunset (Continuation) 12.6 students per teacher

SchoolDigger ratings

3★

2★

1★

0★

1 school without a SchoolDigger rating (too few tested students)

Compare California districts →See the top-ranked California schools →

Summary:

San Lorenzo Unified includes 16 schools—nine elementary, three middle and four high schools—with results reported across elementary, middle and high school grades. In 2025–2026, all-grades proficiency ranged from 0% to 47% in ELA, from 5% to 48% in math, and from 2% to 36% in science. The central finding for families is that results vary sharply from school to school, rather than showing one consistent pattern across the area.

Arroyo High led the high schools in all three subjects, with 47% proficient in ELA, 27% in math and 34% in science; its ELA result was 2 points below the state rate. Dayton Elementary had the highest all-grades math result at 48%, 10 points above the state, and its grade 3 math result was 64%, 17 points above the state for that grade. Bay Elementary was near the state rate in all-grades science, with 36%, and exceeded the grade 4 math state rate by 14 points. At the lower end, Royal Sunset (Continuation) had the lowest ELA result at 0% and tied with San Lorenzo High for the lowest math result, at 5%; Hillside Elementary had the lowest science result, at 2%.

Recent changes were mixed: the unweighted average across schools fell 2 points in ELA, rose 1 point in math and rose 1 point in science from 2024–2025 to 2025–2026. The math average kept pace with the state’s increase, while the average gaps widened in ELA and science. SchoolDigger’s statewide percentile ranking rose from the 18th to the 36th percentile for East Bay Arts High, but fell from the 71st to the 53rd for Arroyo High. Context measures also differ: 2024–2025 free/reduced lunch eligible shares were 70% at Bay, 71% at Dayton and 87% at Hillside. Bay and Dayton’s student-teacher ratios were 22.1 and 22.9, compared with 19.3 at Corvallis Elementary; Corvallis’s all-grades math result was 28%, below Bay’s 44% and Dayton’s 48%. These measures describe school differences but do not explain them.

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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 Vaccination Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				CSA Spanish Overall (2026)					CSA Spanish Listening (2026)					CSA Spanish Writing (2026)					CSA Spanish Reading (2026)					CAST Science (2026)					Smarter Balanced Assessments English Language Arts/Literacy (2026)								Smarter Balanced Assessments Mathematics (2026)								Vaccination (2024-25)		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	CSA Spanish Overall 3rd Grade	CSA Spanish Overall 4th Grade	CSA Spanish Overall 5th Grade	CSA Spanish Overall 6th Grade	CSA Spanish Overall All Grades	CSA Spanish Listening 3rd Grade	CSA Spanish Listening 4th Grade	CSA Spanish Listening 5th Grade	CSA Spanish Listening 6th Grade	CSA Spanish Listening All Grades	CSA Spanish Writing 3rd Grade	CSA Spanish Writing 4th Grade	CSA Spanish Writing 5th Grade	CSA Spanish Writing 6th Grade	CSA Spanish Writing All Grades	CSA Spanish Reading 3rd Grade	CSA Spanish Reading 4th Grade	CSA Spanish Reading 5th Grade	CSA Spanish Reading 6th Grade	CSA Spanish Reading All Grades	CAST Science 5th Grade	CAST Science 8th Grade	CAST Science 11th Grade	CAST Science 12th 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 11th 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 11th Grade	Smarter Balanced Assessments Mathematics All Grades	Vaccination: Kindergartners with all required immunizations	Vaccination: Exemption rate	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Arroyo High	Public	9-12	15701 Lorenzo Ave.	San Lorenzo	94580	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-4000	1,499	61	24.6	64.6%	110 (7.3%)	87 (5.8%)	747 (49.8%)	463 (30.9%)	8 (0.5%)	26 (1.7%)	55 (3.7%)	51.9	997^th of 2135 public high schools	53.3%		61.6	778^th of 2162 public high schools	64.0%	219																							34.3	23.8	33.7							47.1	47.1							26.6	26.6			$22,845	$2,660	$20,185
Bay Elementary	Public	K-5	2001 Bockman Rd.	San Lorenzo	94580	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-4300	422	19	22.1	69.7%	36 (8.5%)	8 (1.9%)	220 (52.1%)	130 (30.8%)	0 (0.0%)	4 (0.9%)	24 (5.7%)	45.5	2877^th of 5817 public elementary schools	50.5%		53.2	2413^th of 5857 public elementary schools	58.8%	464																					35.7				35.7	20.3	45.5	41.1					35.5	36.9	56.9	37.5					44.1	≥ 98%		$22,240	$2,100	$20,140
Colonial Acres Elementary	Public	K-5	17115 Meekland Ave.	Hayward	94541	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-4500	458	20	22.9	86.0%	11 (2.4%)	27 (5.9%)	357 (77.9%)	46 (10.0%)	0 (0.0%)	4 (0.9%)	13 (2.8%)	8.1	5695^th of 5817 public elementary schools	2.1%		7.9	5740^th of 5857 public elementary schools	2.0%	45																					6.2				6.2	20.8	9.7	7.6					12.9	16.9	14.3	7.9					13.2	97%	0%	$21,721	$2,083	$19,638
Corvallis Elementary	Public	K-5	14790 Corvallis St.	San Leandro	94579	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-4900	349	18	19.3	70.5%	16 (4.6%)	22 (6.3%)	178 (51.0%)	109 (31.2%)	0 (0.0%)	3 (0.9%)	20 (5.7%)	24.8	4409^th of 5817 public elementary schools	24.2%		29.3	4020^th of 5857 public elementary schools	31.4%	389																					25.0				25.0	27.5	12.9	40.9					25.5	35.3	17.7	33.3					27.7	96%	0%	$22,073	$2,107	$19,966
Del Rey Elementary	Public	K-5	1510 Via Sonya	San Lorenzo	94580	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-5000	373	16	23.3	69.2%	30 (8.0%)	8 (2.1%)	231 (61.9%)	69 (18.5%)	0 (0.0%)	10 (2.7%)	24 (6.4%)	26	4309^th of 5817 public elementary schools	25.9%		31.1	3865^th of 5857 public elementary schools	34.0%	444																					21.5				21.5	22.2	36.7	26.2					28.5	31.5	38.3	20.0					29.6	86%	0%	$21,751	$2,118	$19,633
Edendale Middle	Public	6-8	16160 Ashland Ave.	San Lorenzo	94580	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-5100	483	25	19.6	85.1%	11 (2.3%)	76 (15.7%)	308 (63.8%)	57 (11.8%)	1 (0.2%)	7 (1.4%)	22 (4.6%)	7.1	2678^th of 2740 public middle schools	2.3%		8.3	2661^st of 2761 public middle schools	3.6%	17				12.5	12.5				12.5	12.5				16.7	16.7				8.3	8.3		3.7			3.7				8.3	19.7	15.2		14.3				4.9	11.7	5.3		7.3			$24,216	$2,426	$21,790
Hesperian Elementary	Public	K-5	620 Drew St.	San Lorenzo	94580	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-5200	500	22	22.7	80.6%	14 (2.8%)	53 (10.6%)	335 (67.0%)	62 (12.4%)	1 (0.2%)	12 (2.4%)	23 (4.6%)	6.9	5735^th of 5817 public elementary schools	1.4%		7.7	5747^th of 5857 public elementary schools	1.9%	12	5.6	6.3	0.0		4.6	27.8	15.6	20.0		21.6	11.1	6.3	10.0		9.1	2.8	3.1	0.0		2.3	11.3				11.3	8.3	10.5	17.1					12.0	9.6	7.5	10.0					9.1	93%	0%	$21,946	$2,091	$19,855
Hillside Elementary	Public	K-5	15980 Marcella St.	San Leandro	94578	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-5300	347	14	24.7	87.0%	7 (2.0%)	69 (19.9%)	223 (64.3%)	27 (7.8%)	0 (0.0%)	7 (2.0%)	14 (4.0%)	11.8	5491^st of 5817 public elementary schools	5.6%		11.7	5529^th of 5857 public elementary schools	5.6%	38																					1.7				1.7	16.3	18.2	13.6					16.0	31.3	26.8	5.1					20.3	97%	0%	$23,668	$2,103	$21,565
Lorenzo Manor Elementary	Public	K-5	18250 Bengal St.	Hayward	94541	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-5400	447	19	23.4	76.5%	10 (2.2%)	16 (3.6%)	344 (77.0%)	54 (12.1%)	0 (0.0%)	5 (1.1%)	17 (3.8%)	19.8	4831^st of 5817 public elementary schools	17.0%		19.4	4883^rd of 5857 public elementary schools	16.6%	52																					10.9				10.9	22.1	26.0	25.0					24.3	32.5	26.0	25.0					28.0	96%	0%	$22,932	$2,112	$20,820
Royal Sunset (Continuation)	Public	7-12	20450 Royal Ave.	Hayward	94541	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-4400	107	8	12.6	62.6%	7 (6.5%)	11 (10.3%)	70 (65.4%)	10 (9.3%)	1 (0.9%)	4 (3.7%)	4 (3.7%)	9.8	1958^th of 2135 public high schools	8.3%		9.3	2051^st of 2162 public high schools	5.1%	93																							8.0		8.0							0.0	0.0							4.6	4.6			$29,493	$2,321	$27,172
San Lorenzo High	Public	9-12	50 East Lewelling Blvd.	San Lorenzo	94580	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-3000	1,029	50	20.7	81.5%	40 (3.9%)	101 (9.8%)	704 (68.4%)	137 (13.3%)	1 (0.1%)	17 (1.7%)	24 (2.3%)	16.5	1722^nd of 2135 public high schools	19.3%		25.3	1586^th of 2162 public high schools	26.6%	136																							14.7		14.7							22.7	22.7							4.6	4.6			$24,930	$2,552	$22,378
Bohannon Middle	Public	6-8	800 Bockman Rd.	San Lorenzo	94580	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-3800	606	25	24.1	73.6%	37 (6.1%)	32 (5.3%)	416 (68.6%)	92 (15.2%)	0 (0.0%)	12 (2.0%)	17 (2.8%)	33.6	1698^th of 2740 public middle schools	38.0%		27.4	1913^th of 2761 public middle schools	30.7%	215																						22.2			22.2				33.5	44.2	36.3		38.0				27.1	33.2	21.5		27.3			$23,245	$2,396	$20,849
Dayton Elementary	Public	K-5	1500 Dayton Ave.	San Leandro	94579	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-3600	340	15	22.9	71.2%	28 (8.2%)	8 (2.4%)	116 (34.1%)	170 (50.0%)	1 (0.3%)	2 (0.6%)	15 (4.4%)	50.6	2581^st of 5817 public elementary schools	55.6%		44.1	2946^th of 5857 public elementary schools	49.7%	365																					34.2				34.2	31.8	50.0	31.0					38.9	63.6	48.3	31.7					48.3	≥ 98%		$22,859	$2,128	$20,731
Grant Elementary	Public	K-5	879 Grant Ave.	San Lorenzo	94580	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-3700	322	16	20.6	68.9%	39 (12.1%)	23 (7.1%)	168 (52.2%)	76 (23.6%)	0 (0.0%)	1 (0.3%)	15 (4.7%)	34	3661^st of 5817 public elementary schools	37.1%		35.5	3541^st of 5857 public elementary schools	39.5%	120																					20.8				20.8	41.5	25.9	48.9					38.0	41.5	19.0	33.3					30.8	95%	0%	$23,048	$2,124	$20,924
Washington Manor Middle	Public	6-8	1170 Fargo Ave.	San Leandro	94579	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-5500	500	20	24.5	74.0%	29 (5.8%)	33 (6.6%)	234 (46.8%)	173 (34.6%)	1 (0.2%)	3 (0.6%)	26 (5.2%)	31	1788^th of 2740 public middle schools	34.7%		35.5	1632^nd of 2761 public middle schools	40.9%	156																						19.9			19.9				29.1	45.0	31.9		35.3				24.5	24.3	32.3		27.2			$23,530	$2,493	$21,037
East Bay Arts High	Public	9-12	50 East Lewelling Blvd.	San Lorenzo	94580	Alameda County	San Lorenzo Unified	No	(n/a)	No	(n/a)	(510) 317-4471	154	10	14.9	76.0%	10 (6.5%)	19 (12.3%)	99 (64.3%)	13 (8.4%)	2 (1.3%)	3 (1.9%)	6 (3.9%)	35.4	1364^th of 2135 public high schools	36.1%		27.5	1537^th of 2162 public high schools	28.9%	173																							16.7		16.7							38.5	38.5							25.0	25.0			$26,329	$3,655	$22,674
San Lorenzo Unified Preschool	Public		20450 Royal Ave.	Hayward	94541	Alameda County	San Lorenzo Unified	No	(n/a)	(n/a)	(n/a)	(510) 317-4400				—															(n/a)

Districts nearby

District	Distance	# of Schools	Statewide Rank
KIPP King Collegiate High District	0.75 mi	1	102^nd
KIPP Summit Academy District	0.75 mi	1	14^th
San Leandro Unified	1.37 mi	13	943^rd
Hayward Unified	2.2 mi	33	1221^st
Knowledge Enlightens You (KEY) Academy District	2.22 mi	1	1062^nd

See the top CA California districts

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.