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Public School Review - Established 2003

Best Napa County Public Charter Schools (2026)

For the 2026 school year, there are 3 public charter schools serving 348 students in Napa County, CA.
The top-ranked public charter school in Napa County, CA is Stone Bridge. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Napa County, CA public charter schools have an average math proficiency score of 32% (versus the California public charter school average of 32%), and reading proficiency score of 57% (versus the 48% statewide average). Charter schools in Napa County have an average ranking of 8/10, which is in the top 30% of California public charter schools.
Minority enrollment is 46% of the student body (majority Hispanic), which is less than the California public charter school average of 75% (majority Hispanic).

Best Public Charter Schools in Napa County (2026)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Stone Bridge
Charter School
(Math: 30-34% | Reading: 55-59%)
Rank:
7/
10
Top 50%
1019 2nd Ave.
Napa, CA 94558
(707) 252-5522
Gr: K-8 | 278 students Student-teacher ratio: 28:1 Minority enrollment: 38%
Rank: n/an/a
Mayacamas Charter Middle School
Charter School
983 Napa St.
Napa, CA 94558
(415) 515-4226
Gr: 6-8
Rank: n/an/a
Mayacamas Countywide Middle School
Charter School
983 Napa St.
Napa, CA 94559
(707) 320-6394
Gr: 6-8 | 127 students Student-teacher ratio: 21:1 Minority enrollment: 66%

Frequently Asked Questions

What are the top-ranked public charter schools in Napa County, CA?
The top-ranked public charter schools in Napa County, CA include Stone Bridge.
How many public charter schools are located in Napa County?
2 public charter schools are located in Napa County.
What is the racial composition of students in Napa County?
Napa County public charter schools minority enrollment is 46% of the student body (majority Hispanic), which is less than the California public charter schools average of 75% (majority Hispanic).

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