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 proficiency in math is 36% (which is higher than the California state average of 33%). The percentage of students achieving proficiency in reading/language arts 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%
- Graduation Rate: 96% (Top 10% in CA)
- Overall Testing Rank: Top 30%
- Math Proficiency: 36% (Top 50%)
- Reading Proficiency: 78% (Top 10%)
- Science Proficiency: 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:
Category
Attribute
Reading/Language Arts Proficiency
Graduation Rate
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
Total Students
1,930 students
Gender %
Total Classroom Teachers
87 teachers
Year Founded
1945
Colors
White, Black, Red
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 diversity score 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.
Overall Testing Rank
#1950 out of 9602 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
36%
33%
Reading/Language Arts Test Scores (% Proficient)
78%
47%
Science Test Scores (% Proficient)
38%
29%
Student : Teacher Ratio
22:1
21:1
American Indian
n/a
1%
Asian
5%
12%
Hispanic
63%
56%
Black
1%
5%
White
28%
20%
Hawaiian
n/a
n/a
Two or more races
3%
6%
All Ethnic Groups
Graduation Rate
96%
87%
Eligible for Free Lunch
39%
54%
Eligible for Reduced Lunch
1%
8%
School Statewide Testing
School District Name
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.
School Calendar
View the William S. Hart High School yearly calendar below. Note key dates such as:
Event
Date
First Day of School (Hart High Events)
August 12, 2025 (Tuesday)
School Reviews
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