For the 2026-27 school year, there are 3 public high schools serving 1,468 students in 94520, CA.
The top-ranked public high schools in 94520, CA are Floyd I. Marchus and Mt. Diablo High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Public high schools in zipcode 94520 have an average math proficiency score of 13% (versus the California public high school average of 28%), and reading proficiency score of 27% (versus the 51% statewide average). High schools in 94520, CA have an average ranking of 2/10, which is in the bottom 50% of California public high schools.
Public high school in zipcode 94520 have a Graduation Rate of 78%, which is less than the California average of 86%.
The school with highest graduation rate is Mt. Diablo High School, with 78% graduation rate. Read more about public school graduation rate statistics in California or national school graduation rate statistics.
Minority enrollment is 94% of the student body (majority Hispanic), which is more than the California public high school average of 79% (majority Hispanic).
Best 94520, CA Public High Schools (2026-27)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Floyd I. Marchus
Special Education School
(Math: ≤20% | Reading: ≤20%)
Rank:
Rank:
2/
Bottom 50%10
2900 Avon Ave.
Concord, CA 94520
(925) 602-3421
Concord, CA 94520
(925) 602-3421
Gr: K-12 | 50 students Student-teacher ratio: 6:1 Minority enrollment: 68%
Rank: #22.
Mt. Diablo High School
(Math: 13% | Reading: 27%)
Rank:
Rank:
2/
Bottom 50%10
2450 Grant St.
Concord, CA 94520
(925) 682-4030
Concord, CA 94520
(925) 682-4030
Gr: 9-12 | 1,397 students Student-teacher ratio: 20:1 Minority enrollment: 95%
Rank: n/an/a
Glenbrook Academy
Special Education School
2351 Olivera Rd.
Concord, CA 94520
(925) 682-8000
Concord, CA 94520
(925) 682-8000
Gr: 6-12 | 21 students Student-teacher ratio: 11:1 Minority enrollment: 71%
94520, California Public Schools (Closed)
School
Location
Quick Facts
2351 Olivera Rd
Concord, CA 94520
(925) 685-6835
Concord, CA 94520
(925) 685-6835
Gr: 6-8 | 525 students Minority enrollment: 86%
Frequently Asked Questions
What are the top-ranked public high schools in 94520, CA?
The top-ranked public high schools in 94520, CA include Floyd I. Marchus and Mt. Diablo High School.
How many public high schools are located in 94520?
3 public high schools are located in 94520.
What is the racial composition of students in 94520?
94520 public high schools minority enrollment is 94% of the student body (majority Hispanic), which is more than the California public high schools average of 79% (majority Hispanic).
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