For the 2026 school year, there are 19 public charter schools serving 9,798 students in Contra Costa County, CA. The top-ranked public charter schools in Contra Costa County, CA are Eagle Peak Montessori, Clayton Valley Charter High School and Richmond College Preparatory. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Contra Costa County, CA public charter schools have an average math proficiency score of 25% (versus the California public charter school average of 32%), and reading proficiency score of 42% (versus the 48% statewide average). Charter schools in Contra Costa County have an average ranking of 3/10, which is in the bottom 50% of California public charter schools.
Minority enrollment is 88% of the student body (majority Hispanic), which is more than the California public charter school average of 75% (majority Hispanic).
Best Public Charter Schools in Contra Costa County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Eagle Peak Montessori
Charter School
(Math: 50-54% | Reading: 70-74%)
Rank:
Rank:
9/
Top 20%10
800 Hutchinson Rd.
Walnut Creek, CA 94598
(925) 946-0994
Walnut Creek, CA 94598
(925) 946-0994
Gr: 1-8 | 301 students Student-teacher ratio: 30:1 Minority enrollment: 66%
Rank: #22.
Clayton Valley Charter High School
Charter School
(Math: 40% | Reading: 70%)
Rank:
Rank:
8/
Top 30%10
1101 Alberta Way
Concord, CA 94521
(925) 682-7474
Concord, CA 94521
(925) 682-7474
Gr: 9-12 | 2,373 students Student-teacher ratio: 25:1 Minority enrollment: 80%
Rank: #33.
Richmond College Preparatory
Charter School
(Math: 38% | Reading: 48%)
Rank:
Rank:
7/
Top 50%10
214 South 11th St.
Richmond, CA 94802
(510) 235-2066
Richmond, CA 94802
(510) 235-2066
Gr: K-8 | 560 students Student-teacher ratio: 35:1
Rank: #44.
Antioch Charter Academy Ii
Charter School
(Math: 35-39% | Reading: 45-49%)
Rank:
Rank:
7/
Top 50%10
1201 West Tenth St.
Antioch, CA 94509
(925) 755-1252
Antioch, CA 94509
(925) 755-1252
Gr: K-8 | 204 students Student-teacher ratio: 20:1 Minority enrollment: 76%
Rank: #5 - 65. - 6.
Antioch Charter Academy
Charter School
(Math: 25-29% | Reading: 45-49%)
Rank:
Rank:
6/
Top 50%10
3325 Hacienda Way
Antioch, CA 94509
(925) 755-7311
Antioch, CA 94509
(925) 755-7311
Gr: K-8 | 202 students Student-teacher ratio: 18:1 Minority enrollment: 77%
Rank: #5 - 65. - 6.
Invictus Academy Of Richmond
Charter School
(Math: 25-29% | Reading: 45-49%)
Rank:
Rank:
6/
Top 50%10
7150 Portola Dr.
El Cerrito, CA 94530
(510) 994-0888
El Cerrito, CA 94530
(510) 994-0888
Gr: 7-12 | 403 students Student-teacher ratio: 17:1 Minority enrollment: 95%
Rank: #77.
Caliber Beta Academy
Charter School
(Math: 27% | Reading: 40%)
Rank:
Rank:
5/
Bottom 50%10
2465 Dolan Way
San Pablo, CA 94806
(510) 685-9886
San Pablo, CA 94806
(510) 685-9886
Gr: K-8 | 971 students Student-teacher ratio: 18:1 Minority enrollment: 97%
Rank: #88.
Golden Gate Community
Alternative School
Charter School
Charter School
(Math: <50% | Reading: ≤20%)
Rank:
Rank:
5/
Bottom 50%10
1111 Stoneman Ave.
Pittsburg, CA 94565
(925) 427-3199
Pittsburg, CA 94565
(925) 427-3199
Gr: 6-12 | 69 students Student-teacher ratio: 10:1 Minority enrollment: 96%
Rank: #99.
Summit Public School K2
Charter School
(Math: 19% | Reading: 44%)
Rank:
Rank:
5/
Bottom 50%10
1800 Elm St.
El Cerrito, CA 94530
(510) 374-4093
El Cerrito, CA 94530
(510) 374-4093
Gr: 7-12 | 554 students Student-teacher ratio: 22:1 Minority enrollment: 98%
Rank: #1010.
Caliber Changemakers Academy
Charter School
(Math: 22% | Reading: 37%)
Rank:
Rank:
4/
Bottom 50%10
500 Oregon St.
Richmond, CA 94805
(707) 563-9827
Richmond, CA 94805
(707) 563-9827
Gr: K-8 | 975 students Student-teacher ratio: 21:1 Minority enrollment: 97%
Rank: #1111.
Making Waves Academy
Charter School
(Math: 21% | Reading: 39%)
Rank:
Rank:
4/
Bottom 50%10
4123 Lakeside Dr.
San Pablo, CA 94806
(510) 262-1511
San Pablo, CA 94806
(510) 262-1511
Gr: 5-12 | 1,078 student Student-teacher ratio: 19:1 Minority enrollment: 99%
Rank: #1212.
John Henry High School
Charter School
(Math: 10-14% | Reading: 45-49%)
Rank:
Rank:
4/
Bottom 50%10
1402 Marina Way South
Richmond, CA 94804
(510) 235-2439
Richmond, CA 94804
(510) 235-2439
Gr: 9-12 | 333 students Student-teacher ratio: 30:1 Minority enrollment: 96%
Rank: #1313.
Voices College-bound Language Academy At W. Contra Costa Co
Charter School
(Math: 20-24% | Reading: 30-34%)
Rank:
Rank:
4/
Bottom 50%10
201 28th St.
Richmond, CA 94804
(510) 480-0540
Richmond, CA 94804
(510) 480-0540
Gr: K-8 | 343 students Student-teacher ratio: 34:1
Rank: #1414.
Contra Costa School Of Performing Arts
Charter School
(Math: 17% | Reading: 39%)
Rank:
Rank:
4/
Bottom 50%10
2730 Mitchell Dr.
Walnut Creek, CA 94598
(925) 235-1130
Walnut Creek, CA 94598
(925) 235-1130
Gr: 6-12 | 285 students Student-teacher ratio: 22:1 Minority enrollment: 73%
Rank: #1515.
Summit Public School Tamalpais
Charter School
(Math: 16% | Reading: 38%)
Rank:
Rank:
4/
Bottom 50%10
3020 Hilltop Mall Rd.
San Pablo, CA 94806
(510) 374-4185
San Pablo, CA 94806
(510) 374-4185
Gr: 7-12 | 629 students Student-teacher ratio: 25:1 Minority enrollment: 97%
Rank: #1616.
Richmond Charter Elementary-benito Juarez
Charter School
(Math: 21% | Reading: 28%)
Rank:
Rank:
3/
Bottom 50%10
1450 Marina Way South
Richmond, CA 94804
(510) 215-7009
Richmond, CA 94804
(510) 215-7009
Gr: K-5 | 490 students Student-teacher ratio: 38:1 Minority enrollment: 99%
Rank: #1717.
Manzanita Middle School
Charter School
(Math: 15-19% | Reading: 15-19%)
Rank:
Rank:
2/
Bottom 50%10
461 33rd St.
Richmond, CA 94804
(510) 222-3500
Richmond, CA 94804
(510) 222-3500
Gr: 6-8 | 92 students Student-teacher ratio: 23:1
Rank: #1818.
Richmond Charter Academy
Charter School
(Math: 9% | Reading: 23%)
Rank:
Rank:
1/
Bottom 50%10
1450 Marina Way South
Richmond, CA 94804
(510) 235-2465
Richmond, CA 94804
(510) 235-2465
Gr: 6-8 | 296 students Student-teacher ratio: 37:1 Minority enrollment: 97%
Rank: #1919.
Oakland Charter Academy
Charter School
(Math: 14% | Reading: 14%)
Rank:
Rank:
1/
Bottom 50%10
4215 Foothill Blvd.
San Pablo, CA 94806
(510) 532-6751
San Pablo, CA 94806
(510) 532-6751
Gr: 6-8 | 222 students Student-teacher ratio: 32:1 Minority enrollment: 93%
Frequently Asked Questions
What are the top-ranked public charter schools in Contra Costa County, CA?
The top-ranked public charter schools in Contra Costa County, CA include Eagle Peak Montessori, Clayton Valley Charter High School and Richmond College Preparatory. Contra Costa County has one of the highest concentrations of top-ranked public schools in California.
How many public charter schools are located in Contra Costa County?
17 public charter schools are located in Contra Costa County.
What is the racial composition of students in Contra Costa County?
Contra Costa County public charter schools minority enrollment is 88% of the student body (majority Hispanic), which is more than the California public charter schools average of 75% (majority Hispanic).
Which public charter schools in Contra Costa County are often viewed compared to one another?
Popular comparisons of public charter schools in Contra Costa County include: Manzanita Middle School vs. Richmond Charter Academy, Richmond Charter Academy vs. Manzanita Middle School, Antioch Charter Academy Ii vs. Antioch Charter Academy
Recent Articles
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.