William S. Hart Union High School District

21380 Centre Pointe Pkwy.
Santa Clarita, CA 91350-2948
(District boundaries shown in map)
9/
10
Top 20%

Top Rankings

William S. Hart Union High School District ranks among the top 20% of public school district in California for:

Category
Attribute
Overall Rank
Highest overall rank (Top 20%)
Math Proficiency
Highest math proficiency (Top 20%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 20%)
Graduation Rate
Highest graduation rate (Top 5%)
Diversity
Most diverse schools (Top 1%)
Community Size
Largest student body (number of students) (Top 1%)
For the 2025 school year, there are 7 public middle schools serving 6,478 students in William S. Hart Union High School District. This district's average middle testing ranking is 9/10, which is in the top 20% of public middle schools in California.
Public Middle Schools in William S. Hart Union High School District have an average math proficiency score of 45% (versus the California public middle school average of 32%), and reading proficiency score of 66% (versus the 46% statewide average).
Minority enrollment is 68% of the student body (majority Hispanic), which is less than the California public middle school average of 78% (majority Hispanic).

Overview

This School District
This State (CA)
# Schools
16 Schools
3,501 Schools
# Students
20,653 Students
1,854,363 Students
# Teachers
941 Teachers
87,821 Teachers
Student : Teacher Ratio
22:1
22:1

Student By Grade

District Rank

William S. Hart Union High School District, which is ranked #267 of all 1,910 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 95% has decreased from 96% over five school years.
This School District
State Average (CA)
#263 out of 1932 school districts
(Top 20%)
45%
34%
68%
47%
44%
29%
95%
87%

Students by Ethnicity:

0.68
0.64
% American Indian
n/a
1%
% Asian
14%
11%
% Hispanic
45%
55%
% Black
4%
5%
% White
32%
22%
% Hawaiian
n/a
n/a
% Two or more races
5%
6%
All Ethnic Groups

District Revenue and Spending

The revenue/student of $21,204 is higher than the state median of $19,974. The school district revenue/student has grown by 5% over four school years.
The school district's spending/student of $15,499 is less than the state median of $18,396. The school district spending/student has grown by 5% over four school years.
This School District
This State (CA)
Total Revenue
$438 MM
$116,387 MM
Spending
$320 MM
$107,188 MM
Revenue / Student
$21,204
$19,974
Spending / Student
$15,499
$18,396

Best William S. Hart Union High School District Public Middle Schools (2025)

School
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Rancho Pico Junior High School
(Math: 62% | Reading: 81%)
Rank:
10/
10
Top 10%
26250 West Valencia Blvd.
Stevenson Ranch, CA 91381
(661) 284-3260
Grades: 7-8
| 848 students
Rank: #22.
Rio Norte Junior High School
(Math: 53% | Reading: 76%)
Rank:
9/
10
Top 20%
28771 Rio Norte Dr.
Valencia, CA 91354
(661) 295-3700
Grades: 7-8
| 1,110 students
Rank: #33.
Arroyo Seco Junior High School
(Math: 49% | Reading: 68%)
Rank:
9/
10
Top 20%
27171 North Vista Delgado Dr.
Valencia, CA 91354
(661) 296-0991
Grades: 7-8
| 1,240 students
Rank: #44.
Placerita Junior High School
(Math: 43% | Reading: 64%)
Rank:
8/
10
Top 30%
25015 North Newhall Ave.
Newhall, CA 91321
(661) 259-1551
Grades: 7-8
| 920 students
Rank: #55.
Learning Post Academy (Alternative)
Alternative School
(Math: 25-29% | Reading: 65-69%)
Rank:
7/
10
Top 50%
24825 North Newhall Ave.
Newhall, CA 91321
(661) 255-8338
Grades: 7-12
| 363 students
Rank: #66.
Sierra Vista Junior High School
(Math: 34% | Reading: 53%)
Rank:
7/
10
Top 50%
19425 West Stillmore St.
Canyon Country, CA 91351
(661) 252-3113
Grades: 7-8
| 974 students
Rank: #77.
La Mesa Junior High School
(Math: 31% | Reading: 53%)
Rank:
7/
10
Top 50%
26623 May Way
Canyon Country, CA 91351
(661) 250-0022
Grades: 7-8
| 1,023 students

Recent Articles

Understanding Self-Contained Classrooms in Public Schools
Understanding Self-Contained Classrooms in Public Schools
Learn about the history of public schools incorporating self-contained classrooms, and whether they are right for your child.
Can Naviance Succeed Improve College and Career Readiness?
Can Naviance Succeed Improve College and Career Readiness?
Learn about a new student assessment system, Naviance Succeed, which provides tools and support to increase student college and career readiness. A number of school districts are using the tool this year in hopes of improving student performance through more accurate assessment process than are currently available.
Do You Need After School Day Care? Public Schools May Be the Solution
Do You Need After School Day Care? Public Schools May Be the Solution
Learn about how your child's public school may be the best source of after school and vacation day care.

Quick Stats (2025)

  • District size: 16 schools
  • Grades: KG-12
  • Enrollment: 20,653 students
  • Student:Teacher Ratio: 22:1
  • Minority Enrollment: 68%
  • : 95% (Top 5% in CA)
  • : Top 20%
  • : 45% (Top 20%)
  • : 68% (Top 20%)
  • : 44% (Top 30%)
  • Source: National Center for Education Statistics (NCES), CA Dept. of Education

Quick Links