For the 2026 school year, there are 6 public schools serving 3,098 students in 94520, CA (there are 7 private schools, serving 773 private students). 80% of all K-12 students in 94520, CA are educated in public schools (compared to the CA state average of 90%).
The top-ranked public schools in 94520, CA are Sun Terrace Elementary School, 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 schools in zipcode 94520 have an average math proficiency score of 15% (versus the California public school average of 34%), and reading proficiency score of 21% (versus the 47% statewide average). Schools in 94520, CA have an average ranking of 1/10, which is in the bottom 50% of California public schools.
Minority enrollment is 94% of the student body (majority Hispanic), which is more than the California public school average of 80% (majority Hispanic).
Best 94520, CA Public Schools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Sun Terrace Elementary School
(Math: 20-24% | Reading: 16%)
Rank:
Rank:
2/
Bottom 50%10
2448 Floyd Ln.
Concord, CA 94520
(925) 682-4861
Concord, CA 94520
(925) 682-4861
Gr: K-5 | 402 students Student-teacher ratio: 24:1 Minority enrollment: 84%
Rank: #22.
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 | 41 students Student-teacher ratio: 5:1 Minority enrollment: 61%
Rank: #33.
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 | 1,477 student Student-teacher ratio: 20:1 Minority enrollment: 96%
Rank: #44.
Meadow Homes Elementary School
(Math: 17% | Reading: 18%)
Rank:
Rank:
2/
Bottom 50%10
1371 Detroit Ave.
Concord, CA 94520
(925) 685-8760
Concord, CA 94520
(925) 685-8760
Gr: K-5 | 711 students Student-teacher ratio: 27:1 Minority enrollment: 96%
Rank: #55.
Cambridge Elementary School
(Math: 11% | Reading: 22%)
Rank:
Rank:
1/
Bottom 50%10
1135 Lacey Ln.
Concord, CA 94520
(925) 686-4749
Concord, CA 94520
(925) 686-4749
Gr: K-5 | 451 students Student-teacher ratio: 27:1 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 | 16 students Student-teacher ratio: 8:1 Minority enrollment: 63%
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 schools in 94520, CA?
The top-ranked public schools in 94520, CA include Sun Terrace Elementary School, Floyd I. Marchus and Mt. Diablo High School.
How many public schools are located in 94520?
6 public schools are located in 94520.
What percentage of students in 94520 go to public school?
80% of all K-12 students in 94520 are educated in public schools (compared to the CA state average of 90%).
What is the racial composition of students in 94520?
94520 public schools minority enrollment is 94% of the student body (majority Hispanic), which is more than the California public schools average of 80% (majority Hispanic).
Recent Articles
Do We Still Need Libraries in Public Schools in 2026
An updated look at the role of public school libraries in 2026, their impact on literacy, equity, and digital learning, and why they remain essential today.
The History of Public Schools in the United States
Explore the history of public schools in the U.S., from colonial roots to 2026 reforms shaping equity, funding, and classroom innovation.
Special-Program Registration Deadlines Explained
Learn what to know about special-program registration deadlines for magnet, CTE, and dual-enrollment options in public schools.