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Public School Review - Established 2003

Best 93257 California Public Charter Schools (2026)

For the 2026 school year, there are 5 public charter schools serving 5,029 students in 93257, CA.
The top-ranked public charter schools in 93257, CA are Harmony Magnet Academy, Monarch River Academy and Summit Charter Academy. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Public charter schools in zipcode 93257 have an average math proficiency score of 29% (versus the California public charter school average of 32%), and reading proficiency score of 47% (versus the 48% statewide average). Charter schools in 93257, CA have an average ranking of 5/10, which is in the bottom 50% of California public charter schools.
Minority enrollment is 77% of the student body (majority Hispanic), which is more than the California public charter school average of 75% (majority Hispanic).

Best 93257, CA Public Charter Schools (2026)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Harmony Magnet Academy
Magnet School
Charter School
(Math: 50-54% | Reading: 85-89%)
Rank:
10/
10
Top 10%
19429 Road 228
Porterville, CA 93257
(559) 568-0347
Gr: 9-12 | 509 students Student-teacher ratio: 24:1 Minority enrollment: 81%
Rank: #2 - 32. - 3.
Monarch River Academy
Charter School
(Math: 31% | Reading: 47%)
Rank:
6/
10
Top 50%
2293 East Crabtree Ave.
Porterville, CA 93257
(559) 754-1442
Gr: K-12 | 1,338 students Student-teacher ratio: 33:1 Minority enrollment: 53%
Rank: #2 - 32. - 3.
Summit Charter Academy
Charter School
(Math: 31% | Reading: 47%)
Rank:
6/
10
Top 50%
175 South Mathew St.
Porterville, CA 93257
(559) 782-5902
Gr: K-12 | 2,423 students Student-teacher ratio: 23:1 Minority enrollment: 88%
Rank: #44.
Porterville Military Academy
Charter School
(Math: 15-19% | Reading: 30-34%)
Rank:
3/
10
Bottom 50%
900 West Pioneer Ave.
Porterville, CA 93257
(559) 782-7300
Gr: 7-12 | 255 students Student-teacher ratio: 15:1 Minority enrollment: 83%
Rank: #55.
Butterfield Charter
Charter School
(Math: ≤5% | Reading: 15-19%)
Rank:
1/
10
Bottom 50%
900 West Pioneer Ave.
Porterville, CA 93257
(559) 782-7057
Gr: K-12 | 504 students Student-teacher ratio: 21:1 Minority enrollment: 84%

Frequently Asked Questions

What are the top-ranked public charter schools in 93257, CA?
The top-ranked public charter schools in 93257, CA include Harmony Magnet Academy, Monarch River Academy and Summit Charter Academy.
How many public charter schools are located in 93257?
5 public charter schools are located in 93257.
What is the racial composition of students in 93257?
93257 public charter schools minority enrollment is 77% of the student body (majority Hispanic), which is more than the California public charter schools average of 75% (majority Hispanic).

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