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William S. Hart Union High

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At a glance

245^thof 1,530 California districts▼ 10

Better than 83% of California districts

Middle 6 High 10Grades K-12

21380 Centre Pointe Pkwy.
Santa Clarita, CA 91350-2948·(661) 259-0033·All California district rankings →

Statewide performance 2017–2026

2026: better than 84% of districts

Schools

20,465

Students

5-star schools

Top rankedAcademy of the Canyons13^th of 2,135 California high schools

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Biggest riser

William S. Hart High up 160 spots statewide this year

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Smallest classes

Bowman (Jereann) High (Continuation) 11 students per teacher

SchoolDigger ratings

5★

4★

3★

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

Summary:

The William S. Hart Union High area includes 16 schools: 10 high schools and six middle schools, including an alternative academy and a continuation high school. In 2025–2026, the schools’ average all-grades proficiency was 69% in English language arts (ELA), 48% in math and 51% in science—about 20, 9 and 15 percentage points above state rates, respectively. The biggest takeaway is the wide difference between schools: district averages conceal substantially different academic results.

Academy of the Canyons leads all 16 schools in each subject, with 95% ELA, 82% math and 82% science proficiency. At the other end, Bowman (Jereann) High (Continuation) posts 21% in ELA, 0% in math and 11% in science; the gap between these schools is 74, 82 and 71 percentage points, respectively. Among comprehensive high schools, West Ranch High leads in ELA and science, while Canyon High leads in math. Middle-school strengths vary by grade: Rio Norte Junior High leads 7th-grade ELA and math, while Rancho Pico Junior High leads 8th-grade ELA; Sierra Vista Junior High has the lowest scores in the compared middle-school grades and subjects.

Across the 16 schools, average math proficiency rose 3 percentage points from 2024–2025 to 2025–2026, compared with a 1-point state increase; ELA slipped about 1 point while the state rose about 0.5 point, and science rose 3 points, slightly less than the state’s gain. Individual results differed: Canyon High gained 18 points in math, while Learning Post Academy (Alternative) fell 7 points in ELA. SchoolDigger ranks Academy of the Canyons in the 99th percentile statewide and Bowman in the 17th. Free/reduced lunch eligible figures for 2024–2025 range from 13% at West Ranch High to 72% at Bowman; these figures are context, not an explanation for achievement. Group averages are simple averages, and schools differ in grade span and program type.

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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 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)				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 8th Grade	CAST Science 11th Grade	CAST Science 12th Grade	CAST Science All Grades	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 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics 11th Grade	Smarter Balanced Assessments Mathematics All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Valencia High	Public	9-12	27801 North Dickason Dr.	Valencia	91355	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 294-1188	2,286	98	23.3	12.7%	961 (42.0%)	110 (4.8%)	567 (24.8%)	508 (22.2%)	3 (0.1%)	3 (0.1%)	131 (5.7%)	93.6	121^st of 2135 public high schools	94.3%		93.1	143^rd of 2162 public high schools	93.4%	22		66.3	44.4	65.5			83.0	83.0			55.1	55.1	$23,715	$23,088	$627
La Mesa Junior High	Public	7-8	26623 May Way	Santa Clarita	91351	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 250-0022	1,017	50	20.2	47.8%	180 (17.7%)	79 (7.8%)	578 (56.8%)	133 (13.1%)	3 (0.3%)	2 (0.2%)	42 (4.1%)	70.8	668^th of 2740 public middle schools	75.6%		67.3	735^th of 2761 public middle schools	73.4%	67	36.6			36.6	60.2	62.5		61.4	48.5	45.4		46.8	$20,723	$18,744	$1,979
Arroyo Seco Junior High	Public	7-8	27171 North Vista Delgado Dr.	Valencia	91354	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 296-0991	1,239	51	24.3	17.2%	472 (38.1%)	37 (3.0%)	473 (38.2%)	164 (13.2%)	4 (0.3%)	0 (0.0%)	89 (7.2%)	84	391^st of 2740 public middle schools	85.7%		86.9	337^th of 2761 public middle schools	87.8%	54	49.3			49.3	67.6	67.3		67.5	53.9	58.0		55.9	$18,483	$17,682	$801
Bowman (Jereann) High (Continuation)	Public	9-12	21508 Centre Pointe Pkwy.	Santa Clarita	91350	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 253-4400	224	20	11.0	72.3%	32 (14.3%)	3 (1.3%)	184 (82.1%)	3 (1.3%)	1 (0.4%)	0 (0.0%)	1 (0.4%)	14.2	1772^nd of 2135 public high schools	17.0%		13.7	1848^th of 2162 public high schools	14.5%	76		8.5	28.6	11.1			20.8	20.8			0.0	0.0	$46,216	$44,810	$1,406
Canyon High	Public	9-12	19300 West Nadal St.	Canyon Country	91351	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 252-6110	1,952	80	24.3	37.1%	468 (24.0%)	81 (4.1%)	1,259 (64.5%)	97 (5.0%)	2 (0.1%)	1 (0.1%)	43 (2.2%)	91.4	173^rd of 2135 public high schools	91.9%		85.6	299^th of 2162 public high schools	86.2%	126		53.2		53.0			81.2	81.2			64.5	64.5	$20,030	$19,296	$734
William S. Hart High	Public	9-12	24825 North Newhall Ave.	Newhall	91321	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 259-7575	1,941	81	23.8	39.1%	559 (28.8%)	27 (1.4%)	1,205 (62.1%)	87 (4.5%)	1 (0.1%)	5 (0.3%)	57 (2.9%)	82.5	350^th of 2135 public high schools	83.6%		74	510^th of 2162 public high schools	76.4%	160		53.9		53.9			68.3	68.3			43.3	43.3	$21,376	$20,706	$670
Placerita Junior High	Public	7-8	25015 North Newhall Ave.	Newhall	91321	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 259-1551	940	44	21.3	53.6%	260 (27.7%)	10 (1.1%)	610 (64.9%)	36 (3.8%)	0 (0.0%)	0 (0.0%)	24 (2.6%)	72.9	615^th of 2740 public middle schools	77.6%		78.1	514^th of 2761 public middle schools	81.4%	101	40.4			40.4	65.6	61.6		63.7	50.9	40.0		45.7	$21,072	$20,170	$902
Saugus High	Public	9-12	21900 Centurion Way	Saugus	91350	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 297-3900	2,317	95	24.4	17.6%	972 (42.0%)	81 (3.5%)	892 (38.5%)	248 (10.7%)	3 (0.1%)	5 (0.2%)	116 (5.0%)	90.4	198^th of 2135 public high schools	90.7%		92.9	148^th of 2162 public high schools	93.2%	50		59.1	26.3	57.9			84.7	84.7			48.5	48.5	$18,295	$17,808	$487
Sierra Vista Junior High	Public	7-8	19425 West Stillmore St.	Canyon Country	91351	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 252-3113	946	46	20.4	43.4%	211 (22.3%)	23 (2.4%)	651 (68.8%)	35 (3.7%)	1 (0.1%)	2 (0.2%)	23 (2.4%)	55.6	1041^st of 2740 public middle schools	62.0%		59	930^th of 2761 public middle schools	66.3%	111	33.9			33.9	55.9	46.1		50.7	38.7	37.5		38.0	$22,262	$21,068	$1,194
Learning Post Academy (Alternative)	Public, Virtual	7-12	24825 North Newhall Ave.	Santa Clarita	91321	Los Angeles County	William S. Hart Union High	No	(n/a)	Yes	(n/a)	(661) 255-8338	322	17	18.8	24.2%	149 (46.3%)	7 (2.2%)	123 (38.2%)	21 (6.5%)	1 (0.3%)	0 (0.0%)	20 (6.2%)	53	974^th of 2135 public high schools	54.4%		57.1	889^th of 2162 public high schools	58.9%	85	51.6	37.5		41.0	75.0	51.7	54.9	56.7	66.7	21.4	18.0	24.8	$21,148	$20,678	$470
Academy of the Canyons	Public	9-12	26455 Rockwell Canyon Rd.	Santa Clarita	91355	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 362-3056	385	13	29.3	15.3%	104 (27.0%)	12 (3.1%)	85 (22.1%)	168 (43.6%)	1 (0.3%)	1 (0.3%)	14 (3.6%)	98.8	13^th of 2135 public high schools	99.4%		99.1	14^th of 2162 public high schools	99.4%	1		82.5		82.5			94.9	94.9			82.5	82.5	$16,794	$16,324	$470
Golden Valley High	Public	9-12	27051 Robert C. Lee Pkwy.	Santa Clarita	91350	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 298-8140	1,980	86	22.9	42.3%	390 (19.7%)	181 (9.1%)	1,123 (56.7%)	227 (11.5%)	2 (0.1%)	2 (0.1%)	55 (2.8%)	63.9	738^th of 2135 public high schools	65.4%		65.2	688^th of 2162 public high schools	68.2%	50		40.7		40.3			61.7	61.7			27.0	27.0	$20,829	$19,958	$871
Rancho Pico Junior High	Public	7-8	26250 West Valencia Blvd.	Stevenson Ranch	91381	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 284-3260	842	36	23.5	13.4%	289 (34.3%)	37 (4.4%)	194 (23.0%)	252 (29.9%)	1 (0.1%)	1 (0.1%)	68 (8.1%)	94	167^th of 2740 public middle schools	93.9%		95.5	134^th of 2761 public middle schools	95.1%	33	58.1			58.1	82.2	77.9		80.1	71.7	63.0		67.4	$20,594	$19,416	$1,178
West Ranch High	Public	9-12	26255 West Valencia Blvd.	Valencia	91381	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 222-1220	1,777	72	24.6	12.5%	647 (36.4%)	93 (5.2%)	414 (23.3%)	508 (28.6%)	5 (0.3%)	4 (0.2%)	106 (6.0%)	95.9	68^th of 2135 public high schools	96.8%		96.3	72^nd of 2162 public high schools	96.7%	4		70.9		70.5			87.0	87.0			60.4	60.4	$20,077	$19,578	$499
Rio Norte Junior High	Public	7-8	28771 Rio Norte Dr.	Santa Clarita	91354	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 295-3700	1,138	47	24.0	17.0%	436 (38.3%)	54 (4.7%)	282 (24.8%)	294 (25.8%)	0 (0.0%)	2 (0.2%)	70 (6.2%)	93.3	188^th of 2740 public middle schools	93.1%		92	227^th of 2761 public middle schools	91.8%	39	60.5			60.5	83.3	71.8		77.5	72.4	61.1		66.7	$20,555	$18,900	$1,655
Castaic High	Public	9-12	31575 Valley Creek Rd.	Castaic	91384	Los Angeles County	William S. Hart Union High	No	(n/a)	No	(n/a)	(661) 888-6288	1,159	49	23.6	22.4%	401 (34.6%)	56 (4.8%)	557 (48.1%)	93 (8.0%)	1 (0.1%)	4 (0.3%)	47 (4.1%)	81.6	369^th of 2135 public high schools	82.7%		84.4	322^nd of 2162 public high schools	85.1%	47		56.8		56.5			71.1	70.0			37.4	36.8	$22,656	$22,186	$470

Districts nearby

District	Distance	# of Schools	Statewide Rank
Opportunities for Learning - William S. Hart District	0.29 mi	1	1078^th
Saugus Union	0.68 mi	15	194^th
Acton-Agua Dulce Unified	0.86 mi	20
Mission View Public District	1.88 mi	1	1311^th
Newhall	2.46 mi	10	270^th

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.