For the 2026 school year, there are 5 public charter schools serving 1,130 students in Costa Mesa, CA. The top-ranked public charter schools in Costa Mesa, CA are International School For Science And Culture, California Pacific Charter - Sonoma and California Pacific Charter - San Diego. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Costa Mesa, 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 45% (versus the 48% statewide average). Charter schools in Costa Mesa have an average ranking of 4/10, which is in the bottom 50% of California public charter schools.
Minority enrollment is 73% 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 Costa Mesa, CA (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
International School For Science And Culture
Charter School
(Math: 50-59% | Reading: 50-54%)
Rank:
Rank:
8/
Top 30%10
1770 Tustin Ave.
Costa Mesa, CA 92627
(949) 441-4500
Costa Mesa, CA 92627
(949) 441-4500
Gr: K-8 | 114 students Student-teacher ratio: 19:1 Minority enrollment: 75%
Rank: #22.
California Pacific Charter - Sonoma
Charter School
(Math: 25-29% | Reading: 50-54%)
Rank:
Rank:
6/
Top 50%10
14630 Armstrong Woods Rd.
Costa Mesa, CA 92626
(855) 225-7227
Costa Mesa, CA 92626
(855) 225-7227
Gr: K-12 | 152 students Student-teacher ratio: 4:1 Minority enrollment: 60%
Rank: #33.
California Pacific Charter - San Diego
Charter School
(Math: 20-24% | Reading: 50-54%)
Rank:
Rank:
6/
Top 50%10
940 South Coast Dr., Ste. 185
Costa Mesa, CA 92626
(855) 225-7227
Costa Mesa, CA 92626
(855) 225-7227
Gr: K-12 | 280 students Student-teacher ratio: 7:1 Minority enrollment: 64%
Rank: #44.
California Pacific Charter- Los Angeles
Charter School
(Math: 20-24% | Reading: 35-39%)
Rank:
Rank:
4/
Bottom 50%10
940 South Coast Dr. #185
Costa Mesa, CA 92626
(855) 225-7227
Costa Mesa, CA 92626
(855) 225-7227
Gr: K-12 | 428 students Student-teacher ratio: 10:1 Minority enrollment: 76%
Rank: #55.
College And Career Preparatory Academy
Charter School
(Math: ≤10% | Reading: ≤20%)
Rank:
Rank:
1/
Bottom 50%10
1669 East Wilshire Ave. Ste. 6
Costa Mesa, CA 92628
(714) 796-8795
Costa Mesa, CA 92628
(714) 796-8795
Gr: 9-12 | 156 students Student-teacher ratio: 22:1 Minority enrollment: 92%
Costa Mesa, California Public Schools (Closed)
School
Location
Quick Facts
Access Juvenile Hall (Closed 2024)
Alternative School
200 Kalmus Dr.
Costa Mesa, CA 92628
(714) 935-7651
Costa Mesa, CA 92628
(714) 935-7651
Gr: K-12 | 183 students Student-teacher ratio: 8:1 Minority enrollment: 93%
Orange Coast Middle College High School (Closed 2011)
Alternative School
2701 Fairview Rd
Costa Mesa, CA 92628
(714) 432-5732
Costa Mesa, CA 92628
(714) 432-5732
Gr: 12
102 Baker St East
Costa Mesa, CA 92626
(714) 557-7002
Costa Mesa, CA 92626
(714) 557-7002
Gr: 6-12 | 176 students Student-teacher ratio: 20:1 Minority enrollment: 67%
<麻豆果冻传媒 class='so-dt-title' id='faq'>Frequently Asked Questions
What are the top-ranked public charter schools in Costa Mesa, CA?
The top-ranked public charter schools in Costa Mesa, CA include International School For Science And Culture, California Pacific Charter - Sonoma and California Pacific Charter - San Diego. Costa Mesa has one of the highest concentrations of top-ranked public schools in California.
How many public charter schools are located in Costa Mesa?
5 public charter schools are located in Costa Mesa.
What is the racial composition of students in Costa Mesa?
Costa Mesa public charter schools minority enrollment is 73% of the student body (majority Hispanic), which is less than the California public charter schools average of 75% (majority Hispanic).