Private School Review - Established 2003
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Best California Private High Schools Belonging to Middle States Association Commissions on Elementary and Secondary Schools (MSA-CESS) (2026-27)

For the 2026-27 school year, there are 3 private high schools belonging to Middle States Association Commissions on Elementary and Secondary Schools (MSA-CESS) serving 104 students in California. You can also find more schools membership associations in California.
The average acceptance rate is 92%, which is higher than the California private high school average acceptance rate of 81%.

Quick Facts (2026-27)

  • # Private Schools: 3

Quick Facts (2026-27)

  • # Private Schools: 3

Private High Schools Belonging to Middle States Association Commissions on Elementary and Secondary Schools (MSA-CESS) in California (2026-27)

A+ World Academy Photo
A+ World Academy
Gr: 11-12 | 60 students
Avg. class size: 12 students
Sports: 5 | Extracurriculars: 8
International (Swiss and Norwegian Headquarters).
San Diego, CA 03007
(407) 766-6369
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Map of California University Preparatory School
California University Preparatory School
Gr: 7-12 | 4 students
Avg. class size: 10 students
Extracurriculars: 8
18760 Colima Rd
Rowland Heights, CA 91748
(626) 964-9588
(15)
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ISI Academy Photo
ISI Academy
Gr: 5-12 | 40 students
Avg. class size: 7 students
Sports: 13 | Extracurriculars: 16
Specialized Curriculum
255 Olympic Valley Road
Olympic Valley, CA 96146
(530) 583-8665
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Frequently Asked Questions

How many private high schools belonging to Middle States Association Commissions on Elementary and Secondary Schools (MSA-CESS) are located in California?
3 private high schools belonging to Middle States Association Commissions on Elementary and Secondary Schools (MSA-CESS) are located in California.
3
Private Schools
104
Students
$48,100
Avg. Tuition
27%
Students of Color
7:1
Student-Teacher Ratio

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