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Castaic High

Q: Is Castaic High a good school?

Castaic High ranks 322 nd of 2162 California high schools. SchoolDigger rates this school 4 stars out of 5.

Public Grades 9-12

322^nd

SchoolDigger Rank ?

of 2,162 California High Schools

Better than 85% of California high schools

Summary

Castaic High is a public high school in Castaic, California, serving 1,193 students in grades 9-12. It is part of the William S. Hart Union High School District, which is ranked 235 out of 1,543 districts in the state and has a 4-star rating from SchoolDigger. Castaic High has consistently maintained a 4-star rating, ranking between 322 and 417 out of over 2,000 California high schools.

Academically, Castaic High outperforms the state and district averages in Smarter Balanced Assessments for English Language Arts/Literacy and Mathematics, as well as the CAST Science assessments. The school's performance is particularly strong in ELA/Literacy, with 74.36% of all students proficient or better, compared to 69.79% for the district and 48.81% for the state. In Mathematics, Castaic High's performance is above the district average but slightly below the state average. The school also performs exceptionally well in several student subgroups, such as African American and Special Education students, ranking in the top 25% of California high schools in these categories.

While Castaic High generally outperforms the nearby Bowman (Jereann) High continuation school, it faces competition from several high-performing schools within the same district, such as Saugus High, West Ranch High, and Valencia High, which consistently rank among the top 5% of California high schools. Additionally, Castaic High has experienced relatively high rates of chronic absenteeism, which may be an area of concern for the school.

1,159

Students ?

23.6

Student/teacher ratio ?

$17,006

Per pupil spending ?

22.4%

Free/discounted lunch ?

31575 Valley Creek Rd.
Castaic, CA 91384

(661) 888-6288

District: William S. Hart Union High

Racial breakdown:

Hispanic:

48.1%

White:

34.6%

Asian:

8.0%

See top rated California high schools

Compare Castaic High to nearby high schools!

At a glance

▲ Ranking trend: Improving — 80th percentile in 2022 → 85th in 2025

Strengths

✓Test scores above the California average (55% vs 41% meeting standards)

✓Ranks in the top 15% of California high schools

✓98% graduate in 4 years — above the California average (88%)

Worth a look

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

!Large classes — about 24 students per teacher

Students meeting standards (2024-2025) ?

This school55%

District avg56%

California avg41%

322^nd of 2,162

California public high schools ?

Top 15%▲ up 5 pts since 2022

From top 20% (2022) to top 15% (2025)

See the entire ranking list of California High Schools →

★★★★★

SchoolDigger rating ?

6^th of 10High Schools in the William S. Hart Union High

235^th of 1,543William S. Hart Union High 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	84.4	322 of 2162	85.1%	★★★★☆
2024	81.8	379 of 2159	82.4%	★★★★☆
2023	84.4	335 of 2170	84.6%	★★★★☆
2022	77.9	417 of 2123	80.4%	★★★★☆

African American

Year	Avg score	Statewide rank	California percentile	Rating
2024	92.9	27 of 517	94.8%	★★★★★
2023	84.8	63 of 521	87.9%	★★★★☆

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2025	69.6	218 of 585	62.7%	★★★☆☆
2023	82.8	83 of 591	86.0%	★★★★☆
2022	70.3	194 of 581	66.6%	★★★☆☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	88.8	83 of 1161	92.9%	★★★★★

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	78.1	383 of 1906	79.9%	★★★★☆
2024	78.0	392 of 1915	79.5%	★★★★☆
2023	83.9	287 of 1915	85.0%	★★★★☆
2022	76.0	379 of 1858	79.6%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2025	83.3	237 of 1900	87.5%	★★★★☆
2024	76.3	366 of 1902	80.8%	★★★★☆
2023	77.8	345 of 1917	82.0%	★★★★☆
2022	76.8	319 of 1861	82.9%	★★★★☆

Homeless

Year	Avg score	Statewide rank	California percentile	Rating
2024	39.5	207 of 328	36.9%	★★☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	81.2	318 of 2013	84.2%	★★★★☆
2024	73.7	431 of 2026	78.7%	★★★★☆
2023	60.3	690 of 2030	66.0%	★★★☆☆
2022	58.4	659 of 1943	66.1%	★★★☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	86.2	250 of 1942	87.1%	★★★★☆
2024	81.5	347 of 1948	82.2%	★★★★☆
2023	81.2	352 of 1963	82.1%	★★★★☆
2022	76.3	391 of 1916	79.6%	★★★★☆

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2025	54.4	268 of 577	53.6%	★★★☆☆
2024	61.0	225 of 574	60.8%	★★★☆☆
2023	54.7	259 of 541	52.1%	★★★☆☆
2022	70.4	147 of 515	71.5%	★★★★☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2025	86.9	106 of 1252	91.5%	★★★★★
2024	63.4	291 of 1216	76.1%	★★★★☆
2023	83.9	112 of 1197	90.6%	★★★★★

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	78.3	226 of 1155	80.4%	★★★★☆
2024	76.8	256 of 1173	78.2%	★★★★☆
2023	79.0	231 of 1193	80.6%	★★★★☆
2022	62.7	426 of 1204	64.6%	★★★☆☆

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 (2024)95th percentile+12 vs school

Disabled (2022)93rd percentile+12 vs school

Special Education (2025)92nd percentile+6 vs school

Hispanic (2025)88th percentile~ school

Male (2025)87th percentile~ school

Low Socio Economic Status (2025)84th percentile~ school

White (2025)80th percentile-5 vs school

Female (2025)80th percentile-5 vs school

Asian (2025)63rd percentile-22 vs school

Multi-racial (2025)54th percentile-32 vs school

Homeless (2024)37th percentile-46 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy74%+26 vs state

Science55%+22 vs state

Mathematics34%-3 vs state

★

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Schools Near Castaic High

Choose columns to see: Summary School Students/Teachers Ranking Test Scores 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)				Per Pupil Expenditures (2024)
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 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
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%)	84.4	322^nd of 2162 public high schools	85.1%		81.8	379^th of 2159 public high schools	82.4%	57		55.7		54.6			75.9	74.4			35.4	34.4	$17,006	$500	$16,506
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%)	93.1	143^rd of 2162 public high schools	93.4%		96.2	82^nd of 2159 public high schools	96.2%	61		57.8	8.3	56.5			84.1	84.1			53.6	53.6	$16,169	$695	$15,474
Opportunities for Learning - William S. Hart	Public, Virtual, Charter	7-12	27616 Newhall Ranch Rd.	Valencia	91355	Los Angeles County	Opportunities for Learning - William S. Hart District	Yes	(n/a)	Yes	(n/a)	(661) 607-0153	464	19	24.2	63.1%	164 (35.3%)	16 (3.4%)	245 (52.8%)	11 (2.4%)	1 (0.2%)	1 (0.2%)	22 (4.7%)	61	799^th of 2162 public high schools	63.0%		54.4	897^th of 2159 public high schools	58.5%	98	19.3		33.3	25.5	15.4	29.8	60.8	40.6	12.8	7.0	19.0	13.7	$40,790	$00	$40,790
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%)	96.3	72^nd of 2162 public high schools	96.7%		96.5	77^th of 2159 public high schools	96.4%	5		67.4		66.9			85.1	85.1			60.6	60.6	$15,736	$517	$15,219
Mission View Public	Public, Charter	8-12	26334 Citrus St.	Santa Clarita	91355	Los Angeles County	Mission View Public District	Yes	(n/a)	No	(n/a)	(661) 874-1341	255	9	27.7	73.7%	42 (16.5%)	1 (0.4%)	184 (72.2%)	3 (1.2%)	1 (0.4%)	1 (0.4%)	23 (9.0%)	24.6	1604^th of 2162 public high schools	25.8%		22.7	1639^th of 2159 public high schools	24.1%	35				18.2			35.7	36.4			5.8	5.3	$116,302	$111	$116,191
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%)	99.1	14^th of 2162 public high schools	99.4%		96.5	78^th of 2159 public high schools	96.4%	64		81.6		81.6			96.9	96.9			77.6	77.6	$14,055	$500	$13,555
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%)	92.9	148^th of 2162 public high schools	93.2%		94.5	118^th of 2159 public high schools	94.5%	30		63.8		63.6			81.9	81.9			48.5	48.5	$14,997	$521	$14,476
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%)	13.7	1848^th of 2162 public high schools	14.5%		24.9	1589^th of 2159 public high schools	26.4%	259		6.5	7.7	6.6			20.5	20.5			2.3	2.3	$23,931	$727	$23,204
Hart Regional Occupational Program	Public	9-12	21515 Centre Point Pkwy.	Santa Clarita	91350	Los Angeles County	Hart Regional Occupational Program	No	(n/a)	(n/a)	(n/a)	(661) 259-0033	0				0 ()	0 ()	0 ()	0 ()	0 ()	0 ()	0 ()								(n/a)
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%)	57.1	889^th of 2162 public high schools	58.9%		56.5	850^th of 2159 public high schools	60.6%	39	35.0	36.8		36.5	86.7	61.9	60.0	63.6	57.1	25.0	15.5	22.0	$15,647	$500	$15,147

Frequently Asked Questions about Castaic High

Is Castaic High a good school?

Castaic High ranks 322^nd of 2162 California high schools. SchoolDigger rates this school 4 stars out of 5.

What is the racial makeup of Castaic High?

Students at Castaic High are 48% Hispanic, 35% White, 8% Asian, 5% African American, 4% Two or more races.

How many students attend Castaic High?

In the 2024-25 school year, 1,159 students attended Castaic High.

What district is Castaic High in?

William S. Hart Union High

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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.