For the 2026 school year, there are 2 public high schools serving 2,263 students in 91321, CA.
The top-ranked public high schools in 91321, CA are William S. Hart High School and Learning Post Academy (Alternative). Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Public high schools in zipcode 91321 have an average math proficiency score of 33% (versus the California public high school average of 28%), and reading proficiency score of 75% (versus the 51% statewide average). High schools in 91321, CA have an average ranking of 9/10, which is in the top 20% of California public high schools.
Public high school in zipcode 91321 have a Graduation Rate of 96%, which is more than the California average of 86%.
The school with highest graduation rate is William S. Hart High School, with 96% graduation rate. Read more about public school graduation rate statistics in California or national school graduation rate statistics.
Minority enrollment is 69% of the student body (majority Hispanic), which is less than the California public high school average of 79% (majority Hispanic).
Best 91321, CA Public High Schools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
William S. Hart High School
(Math: 35% | Reading: 78%)
Rank:
Rank:
8/
Top 30%10
24825 North Newhall Ave.
Newhall, CA 91321
(661) 259-7575
Newhall, CA 91321
(661) 259-7575
Gr: 9-12 | 1,941 students Student-teacher ratio: 24:1 Minority enrollment: 71%
Rank: #22.
Learning Post Academy (Alternative)
Alternative School
(Math: 25-29% | Reading: 65-69%)
Rank:
Rank:
7/
Top 50%10
24825 North Newhall Ave.
Newhall, CA 91321
(661) 255-8338
Newhall, CA 91321
(661) 255-8338
Gr: 7-12 | 322 students Student-teacher ratio: 19:1 Minority enrollment: 54%
Frequently Asked Questions
What are the top-ranked public high schools in 91321, CA?
The top-ranked public high schools in 91321, CA include William S. Hart High School and Learning Post Academy (Alternative).
How many public high schools are located in 91321?
2 public high schools are located in 91321.
What is the racial composition of students in 91321?
91321 public high schools minority enrollment is 69% of the student body (majority Hispanic), which is less than the California public high schools average of 79% (majority Hispanic).
Recent Articles
How to Read a School Improvement Plan Before Choosing a School
Learn how to read a school improvement plan, identify meaningful goals, and evaluate whether a school's improvement efforts align with your child's educational needs.
Should You Move for a Better Public School? A Cost vs. Benefit Analysis
Considering a move to a better public school? Explore the financial, academic, and lifestyle tradeoffs before making one of your family's biggest decisions.
When a Higher-Rated School Isn't the Better Fit
Discover why the highest-rated public school may not always be the best choice and learn how to evaluate schools based on your child's unique needs.