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

For the 2026-27 school year, there are 4 private schools belonging to Middle States Association Commissions on Elementary and Secondary Schools (MSA-CESS) serving 223 students in California. You can also find more schools membership associations in California.
The top ranked private school belonging to Middle States Association Commissions on Elementary and Secondary School (MSA-CESS) in California is Page Academy.
The average acceptance rate is 92%, which is higher than the California private school average acceptance rate of 83%.

Quick Facts (2026-27)

  • # Private Schools: 4

Quick Facts (2026-27)

  • # Private Schools: 4

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

Page Academy Photo
Page Academy
Gr: PK-8 | 119 students
657 Victoria Street
Costa Mesa, CA 92627
(949) 642-0411
(1)
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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

What are the top ranked private schools belonging to Middle States Association Commissions on Elementary and Secondary Schools (MSA-CESS) in California?
The top ranked private schools belonging to Middle States Association Commissions on Elementary and Secondary Schools (MSA-CESS) in California is Page Academy.
How many private schools belonging to Middle States Association Commissions on Elementary and Secondary Schools (MSA-CESS) are located in California?
4 private schools belonging to Middle States Association Commissions on Elementary and Secondary Schools (MSA-CESS) are located in California.
4
Private Schools
223
Students
$48,100
Avg. Tuition
41%
Students of Color
9:1
Student-Teacher Ratio

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