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William S. Hart High School

24825 North Newhall Ave.
Newhall, CA 91321

( shown in map)

Top 30%

www.harthighschool.org

William S. Hart High School is a four-year public high school in the neighborhood of Newhall in the city of Santa Clarita, California, United States. Founded in 1945, it is the oldest high school in the Santa Clarita Valley.

Serving 1,930 students in grades 9-12, William S. Hart High School ranks in the top 30% of all schools in California for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).

The percentage of students achieving is 36% (which is higher than the California state average of 33%). The percentage of students achieving is 78% (which is higher than the California state average of 47%).

The student:teacher ratio of 22:1 is higher than the California state level of 21:1.

Minority enrollment is 72% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).

Quick Stats (2025)

Grades: 9-12
Enrollment: 1,930 students
Student:Teacher Ratio: 22:1
Minority Enrollment: 72%
: 96% (Top 10% in CA)
: Top 30%
: 36% (Top 50%)
: 78% (Top 10%)
: 38% (Top 30%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education

Top Rankings

William S. Hart High School ranks among the top 20% of public schools in California for:

School Overview

William S. Hart High School's student population of 1,930 students has declined by 12% over five school years.

The teacher population of 87 teachers has declined by 9% over five school years.

Grades Offered

Grades 9-12

View Data

Distribution of Students By Grade Trends
Grade	William S. Hart High School
9	444
10	476
11	538
12	472

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Total Students

1,930 students

View Data

Total Students Trends Over Years (1987-2023)
Year	William S. Hart High School
2023	2,034
2022	2,146
2021	2,153
2020	2,218
2019	2,218
2018	2,302
2017	2,302
2016	2,342
2015	2,326
2014	2,175
2013	2,173
2012	2,134
2011	2,111
2010	2,190
2009	2,180
2008	2,256
2007	2,476
2006	2,694
2005	2,869
2004	2,974
2003	2,900
2002	2,721
2001	2,592
2000	2,461
1999	2,362
1998	2,262
1997	2,147
1996	2,126
1995	2,134
1994	2,284
1993	2,230
1992	2,181
1991	2,117
1990	2,033
1989	1,990
1988	2,030
1987	2,111

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Gender %

Total Classroom Teachers

87 teachers

View Data

Total Classroom Teachers Trends Over Years (1990-2023)
Year	William S. Hart High School
2023	90
2022	93
2021	94
2020	96
2019	96
2018	95
2017	95
2016	93
2015	82
2014	82
2013	81
2012	79
2010	72
2009	82
2008	99
2007	96
2006	106
2005	110
2004	119
2003	121
2002	113
2001	106
2000	102
1999	95
1998	92
1997	88
1996	83
1995	84
1994	85
1993	85
1992	84
1991	83
1990	81

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Year Founded

1945

Colors

White, Black, Red

School Calendar

View School Calendar

School Rankings

William S. Hart High School ranks within the top 30% of all 9,602 schools in California (based off of combined math and reading proficiency testing data).

The of William S. Hart High School is 0.53, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.

This School

State Level (CA)

#1950 out of 9602 schools
(Top 30%)

View Data

Overall School Rank Trends Over Years (2010-2022)
Year	William S. Hart High School
2022	#1950
2019	#1918
2018	#2228
2017	#1917
2016	#1164
2015	#928
2014	#626
2013	#2026
2012	#2103
2011	#1694
2010	#2263

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36%

33%

View Data

Math Proficiency Comparison Over Years (2010-2022)
Year	William S. Hart High School	California	William S. Hart Union High School District
2022	36%	33%	41%
2019	44%	40%	52%
2018	42%	39%	52%
2017	41%	38%	48%
2016	50%	37%	52%
2015	51%	34%	48%
2014	70%	63%	73%
2013	71%	59%	69%
2012	73%	59%	66%
2011	71%	58%	63%
2010	65%	56%	65%

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78%

47%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2010-2022)
Year	William S. Hart High School	California	William S. Hart Union High School District
2022	78%	47%	68%
2019	80%	51%	72%
2018	72%	50%	52%
2017	79%	48%	68%
2016	82%	48%	72%
2015	81%	44%	66%
2014	68%	58%	70%
2013	70%	57%	71%
2012	69%	58%	70%
2011	75%	56%	70%
2010	68%	54%	67%

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38%

29%

Student : Teacher Ratio

22:1

21:1

View Data

Student-Teacher Ratio Comparison Over Years (1990-2023)
Year	William S. Hart High School	California	William S. Hart Union High School District
2023	23:1	22:1	22:1
2022	23:1	21:1	23:1
2021	23:1	22:1	23:1
2020	23:1	23:1	23:1
2019	23:1	23:1	23:1
2018	24:1	23:1	23:1
2017	24:1	23:1	23:1
2016	25:1	24:1	25:1
2015	28:1	24:1	24:1
2014	27:1	24:1	24:1
2013	27:1	24:1	25:1
2012	27:1	23:1	26:1
2010	30:1	21:1	27:1
2009	27:1	20:1	25:1
2008	23:1	18:1	21:1
2007	26:1	21:1	25:1
2006	25:1	20:1	24:1
2005	26:1	21:1	25:1
2004	25:1	21:1	26:1
2003	24:1	20:1	25:1
2002	24:1	20:1	24:1
2001	24:1	20:1	24:1
2000	24:1	21:1	24:1
1999	25:1	21:1	24:1
1998	24:1	21:1	24:1
1997	24:1	23:1	24:1
1996	26:1	25:1	25:1
1995	26:1	25:1	25:1
1994	27:1	25:1	26:1
1993	26:1	25:1	26:1
1992	26:1	24:1	25:1
1991	25:1	24:1	25:1
1990	25:1	24:1	24:1

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American Indian

n/a

Asian

12%

View Data

Asian Student Percentage Comparison Over Years (1991-2023)
Year	William S. Hart High School	California	William S. Hart Union High School District
2023	5%	12%	14%
2022	6%	12%	14%
2021	6%	12%	13%
2020	6%	12%	13%
2019	6%	12%	13%
2018	6%	11%	12%
2017	6%	11%	12%
2016	5%	11%	11%
2015	6%	11%	11%
2014	5%	11%	11%
2013	7%	11%	11%
2012	7%	11%	11%
2011	7%	11%	12%
2010	8%	11%	11%
2009	8%	11%	12%
2008	8%	12%	12%
2007	10%	12%	11%
2006	10%	12%	10%
2005	10%	12%	11%
2004	10%	12%	9%
2003	9%	11%	8%
2002	8%	11%	7%
2001	9%	11%	7%
2000	8%	11%	7%
1999	8%	11%	6%
1998	8%	11%	6%
1997	7%	11%	6%
1996	6%	11%	5%
1995	6%	11%	5%
1994	5%	11%	5%
1993	4%	11%	5%
1992	5%	11%	4%
1991	4%	11%	4%

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Hispanic

63%

56%

View Data

Hispanic Student Percentage Comparison Over Years (1991-2023)
Year	William S. Hart High School	California	William S. Hart Union High School District
2023	61%	55%	44%
2022	57%	56%	43%
2021	55%	56%	42%
2020	50%	55%	40%
2019	50%	55%	40%
2018	48%	54%	40%
2017	48%	54%	40%
2016	45%	54%	39%
2015	43%	54%	38%
2014	41%	53%	35%
2013	39%	53%	35%
2012	39%	52%	34%
2011	37%	51%	32%
2010	34%	50%	32%
2009	33%	49%	30%
2008	33%	50%	28%
2007	31%	49%	27%
2006	31%	48%	26%
2005	30%	47%	25%
2004	30%	46%	25%
2003	28%	45%	24%
2002	27%	44%	23%
2001	25%	43%	21%
2000	25%	42%	20%
1999	25%	41%	19%
1998	25%	40%	19%
1997	25%	40%	18%
1996	22%	39%	18%
1995	21%	38%	17%
1994	20%	37%	18%
1993	19%	36%	17%
1992	17%	35%	17%
1991	16%	34%	15%

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Black

View Data

Black Student Percentage Comparison Over Years (1991-2023)
Year	William S. Hart High School	California	William S. Hart Union High School District
2023	1%	5%	4%
2022	1%	5%	4%
2021	1%	5%	4%
2020	2%	5%	4%
2019	2%	5%	4%
2018	1%	6%	4%
2017	1%	6%	4%
2016	1%	6%	5%
2015	1%	6%	5%
2014	1%	6%	4%
2013	2%	6%	5%
2012	2%	6%	5%
2011	2%	7%	5%
2010	2%	7%	5%
2009	2%	7%	5%
2008	2%	8%	5%
2007	3%	8%	5%
2006	3%	8%	5%
2005	3%	8%	4%
2004	3%	8%	4%
2003	3%	8%	4%
2002	3%	8%	4%
2001	2%	8%	4%
2000	2%	9%	3%
1999	2%	9%	3%
1998	2%	9%	3%
1997	2%	9%	3%
1996	2%	9%	3%
1995	2%	9%	2%
1994	2%	9%	2%
1993	2%	9%	2%
1992	2%	9%	2%
1991	1%	9%	2%

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White

28%

20%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	William S. Hart High School	California	William S. Hart Union High School District
2023	30%	21%	34%
2022	32%	21%	35%
2021	34%	22%	37%
2020	39%	23%	38%
2019	39%	23%	38%
2018	42%	24%	39%
2017	42%	24%	39%
2016	46%	24%	41%
2015	48%	24%	42%
2014	49%	25%	46%
2013	50%	25%	46%
2012	51%	26%	47%
2011	53%	27%	49%
2010	56%	27%	50%
2009	56%	28%	52%
2008	57%	29%	55%
2007	56%	29%	57%
2006	56%	31%	58%
2005	57%	31%	60%
2004	57%	32%	62%
2003	60%	34%	64%
2002	62%	35%	66%
2001	64%	36%	68%
2000	65%	37%	70%
1999	65%	38%	72%
1998	65%	39%	72%
1997	66%	39%	73%
1996	70%	40%	74%
1995	71%	41%	76%
1994	73%	42%	75%
1993	75%	43%	76%
1992	76%	44%	77%
1991	79%	45%	79%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2011-2023)
Year	William S. Hart High School	California	William S. Hart Union High School District
2023	3%	6%	4%
2022	4%	5%	4%
2021	4%	5%	4%
2020	3%	4%	5%
2019	3%	4%	5%
2018	3%	4%	5%
2017	3%	4%	5%
2016	3%	4%	4%
2015	2%	3%	4%
2014	4%	3%	4%
2013	2%	3%	3%
2012	1%	3%	3%
2011	1%	2%	2%

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All Ethnic Groups

0.53

0.63

View Data

Diversity Score Comparison Over Years (1991-2023)
Year	William S. Hart High School	California	William S. Hart Union High School District
2023	0.54	0.64	0.68
2022	0.57	0.63	0.68
2021	0.58	0.62	0.68
2020	0.60	0.63	0.68
2019	0.60	0.63	0.68
2018	0.59	0.64	0.68
2017	0.59	0.64	0.68
2016	0.59	0.64	0.67
2015	0.59	0.64	0.66
2014	0.59	0.65	0.66
2013	0.60	0.65	0.66
2012	0.59	0.65	0.66
2011	0.58	0.67	0.65
2010	0.57	0.67	0.64
2009	0.58	0.71	0.63
2008	0.57	0.65	0.61
2007	0.58	0.67	0.60
2006	0.59	0.66	0.58
2005	0.58	0.67	0.57
2004	0.59	0.67	0.55
2003	0.56	0.67	0.53
2002	0.54	0.67	0.51
2001	0.53	0.67	0.49
2000	0.51	0.67	0.46
1999	0.51	0.67	0.45
1998	0.51	0.67	0.44
1997	0.50	0.67	0.43
1996	0.46	0.67	0.41
1995	0.45	0.67	0.40
1994	0.42	0.67	0.40
1993	0.40	0.67	0.40
1992	0.39	0.67	0.38
1991	0.35	0.67	0.35

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96%

87%

View Data

Graduation Rate Comparison Over Years (2012-2022)
Year	William S. Hart High School	California	William S. Hart Union High School District
2022	96%	87%	97%
2021	93%	84%	95%
2020	94%	85%	94%
2019	96%	84%	94%
2018	98%	84%	96%
2017	94%	83%	94%
2016	95%	83%	95%
2015	97%	89%	95%
2014	94%	88%	95%
2013	93%	87%	93%
2012	96%	86%	93%

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Eligible for

39%

54%

View Data

Free Lunch Eligibility Comparison Over Years (1992-2023)
Year	William S. Hart High School	California	William S. Hart Union High School District
2023	41%	51%	24%
2022	35%	51%	24%
2021	37%	53%	28%
2020	35%	52%	25%
2019	35%	52%	25%
2018	25%	49%	22%
2017	25%	49%	22%
2016	20%	50%	21%
2015	21%	50%	22%
2014	22%	49%	19%
2013	18%	48%	18%
2011	14%	46%	11%
2010	16%	46%	11%
2009	12%	43%	8%
2008	10%	41%	7%
2007	7%	40%	6%
2006	6%	40%	6%
2005	5%	40%	8%
2004	8%	40%	9%
2003	8%	39%	8%
2002	7%	39%	4%
2001	8%	39%	5%
2000	8%	40%	6%
1999	6%	40%	6%
1998	11%	47%	8%
1997	12%	47%	9%
1996	11%	46%	9%
1995	9%	45%	9%
1994	10%	43%	9%
1993	6%	41%	6%
1992	6%	38%	5%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (1999-2023)
Year	William S. Hart High School	California	William S. Hart Union High School District
2023	1%	8%	1%
2022	1%	7%	2%
2021	2%	6%	2%
2020	3%	7%	3%
2019	3%	7%	3%
2018	4%	9%	4%
2017	4%	9%	4%
2016	4%	9%	4%
2015	3%	9%	5%
2014	3%	9%	5%
2013	3%	7%	5%
2011	1%	8%	3%
2010	2%	9%	3%
2009	1%	10%	3%
2008	1%	10%	2%
2007	1%	10%	2%
2006	1%	9%	2%
2003	1%	9%	2%
2002	1%	8%	1%
2001	1%	8%	1%
1999	1%	7%	1%

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School Statewide Testing

View Education Department Test Scores

School District Name

William S. Hart Union High School District

Source: National Center for Education Statistics (NCES), CA Dept. of Education

Profile last updated: 02/09/2025

Frequently Asked Questions

What is William S. Hart High School's ranking?

William S. Hart High School is ranked #1950 out of 9,602 schools, which ranks it among the top 30% of public schools in California.

What schools are William S. Hart High School often compared to?

William S. Hart High Schoolis often viewed alongside schools like West Ranch High School by visitors of our site.

What percent of students have achieved state testing proficiency in math and reading?

36% of students have achieved math proficiency (compared to the 33% CA state average), while 78% of students have achieved reading proficiency (compared to the 47% CA state average).

What is the graduation rate of William S. Hart High School?

The graduation rate of William S. Hart High School is 96%, which is higher than the California state average of 87%.

How many students attend William S. Hart High School?

1,930 students attend William S. Hart High School.

What is the racial composition of the student body?

63% of William S. Hart High School students are Hispanic, 28% of students are White, 5% of students are Asian, 3% of students are Two or more races, and 1% of students are Black.

What is the student:teacher ratio of William S. Hart High School?

William S. Hart High School has a student ration of 22:1, which is higher than the California state average of 21:1.

What grades does William S. Hart High School offer ?

William S. Hart High School offers enrollment in grades 9-12

What school district is William S. Hart High School part of?

William S. Hart High School is part of William S. Hart Union High School District.

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Quick Stats (2025)

Grades: 9-12
Enrollment: 1,930 students
Student:Teacher Ratio: 22:1
Minority Enrollment: 72%
: 96% (Top 10%)
: Top 30%
: 36% (Top 50%)
: 78% (Top 10%)
: 38% (Top 30%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education