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Best California Private Schools Belonging to California Association of Independent Schools (CAIS-CA) (2026-27)

For the 2026-27 school year, there are 200 private schools belonging to California Association of Independent Schools (CAIS-CA) serving 68,420 students in California. You can also find more schools membership associations in California.
The top ranked private schools belonging to California Association of Independent Schools (CAIS-CA) in California include Idyllwild Arts Academy, Campbell Hall, and Foothill Country Day School.
The average tuition cost is $38,894, which is higher than the California private school average tuition cost of $18,350.
25% of private schools belonging to California Association of Independent Schools (CAIS-CA) in California are religiously affiliated (most commonly Episcopal and Catholic).

Quick Facts (2026-27)

  • # Private Schools: 200

Quick Facts (2026-27)

  • # Private Schools: 200

Top Ranked Private Schools Belonging to California Association of Independent Schools (CAIS-CA) in California (2026-27)

Campbell Hall Photo
Campbell Hall
Gr: K-12 | 1,148 students
Avg. class size: 13 students
Sports: 13 | Extracurriculars: 1
Episcopal
4533 Laurel Canyon Blvd
Studio City, CA 91607
(818) 980-7280
(11)
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Clairbourn School Photo
Clairbourn School
Gr: NS-8 | 283 students
Avg. class size: 18 students
Sports: 11 | Extracurriculars: 11
8400 Huntington Drive
San Gabriel, CA 91775
(626) 286-3108
(18)
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Dunn School Photo
Dunn School
Gr: 6-12 | 256 students
Avg. class size: 10 students
Sports: 13 | Extracurriculars: 12
2555 West Highway 154
Los Olivos, CA 93441
(805) 688-6471
(5)
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EF Academy Pasadena Photo
EF Academy Pasadena
Gr: 9-12 | 265 students
Avg. class size: 18 students
Sports: 6 | Extracurriculars: 20
1505 E Howard St.
Pasadena, CA 91104
(626) 507-9223
(1)
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Foothill Country Day School Photo
Foothill Country Day School
Gr: NS-8 | 438 students
Avg. class size: 20 students
Sports: 7 | Extracurriculars: 10
1035 Harrison Ave
Claremont, CA 91711
(909) 626-5681
(12)
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The Harker School Upper School Photo
The Harker School Upper School
Gr: K-12 | 798 students
Avg. class size: 10 students
Sports: 15 | Extracurriculars: 20
500 Saratoga Ave
San Jose, CA 95129
(408) 345-9207
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Idyllwild Arts Academy Photo
Idyllwild Arts Academy
Gr: 9-12 | 271 students
Avg. class size: 12 students
Extracurriculars: 24
Specialized Curriculum
52500 Temecula Road #38
Idyllwild, CA 92549
(951) 659-2171
(9)
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Immaculate Heart Middle & High School Photo
Immaculate Heart Middle & High School
Gr: 6-12 | 612 students
Avg. class size: 16 students
Sports: 14
All-girls (Catholic)
5515 Franklin Ave
Los Angeles, CA 90028
(323) 461-3651
(4)
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Los Encinos School Photo
Los Encinos School
Gr: K-6 | 174 students
Avg. class size: 26 students
Sports: 3 | Extracurriculars: 4
17100 Ventura Blvd
Encino, CA 91316
(818) 990-1006
(2)
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Mayfield Senior School Photo
Mayfield Senior School
Gr: 9-12 | 304 students
Avg. class size: 16 students
Sports: 14 | Extracurriculars: 9
All-girls (Catholic)
500 Bellefontaine St
Pasadena, CA 91105
(626) 799-9121
(2)
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Oakwood School Photo
Oakwood School
Gr: K-12 | 822 students
Avg. class size: 15 students
Sports: 21 | Extracurriculars: 46
11230 Moorpark Street/11600 Magnolia Blvd
North Hollywood, CA 91602
(818) 732-3150
(5)
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Pacific Ridge School Photo
Pacific Ridge School
Gr: 6-12 | 695 students
Avg. class size: 15 students
Sports: 16 | Extracurriculars: 47
6269 El Fuerte St
Carlsbad, CA 92009
(760) 448-9820
(6)
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Phillips Brooks School Photo
Phillips Brooks School
Gr: NS-5 | 306 students
Avg. class size: 20 students
Sports: 2
2245 Avy Avenue
Menlo Park, CA 94025
(650) 854-4545
(9)
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Prospect Sierra School Photo
Prospect Sierra School
Gr: PK-8 | 458 students
Avg. class size: 18 students
Sports: 5
2060 Tapscott Ave / 960 Avis Drive
El Cerrito, CA 94530
(510) 809-9001
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Sacramento Country Day School Photo
Sacramento Country Day School
Gr: PK-12 | 597 students
Avg. class size: 15 students
Sports: 12 | Extracurriculars: 9
2636 Latham Drive
Sacramento, CA 95864
(916) 481-8811
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Saint Jeanne De Lestonnac School - Tustin Photo
Saint Jeanne De Lestonnac School - Tustin
Gr: NS-8 | 334 students
Avg. class size: 18 students
Sports: 4 | Extracurriculars: 5
Catholic
16791 E Main St
Tustin, CA 92780
(714) 542-4271
(19)
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St. Mary's School Photo
St. Mary's School
Gr: NS-8 | 702 students
Avg. class size: 18 students
Sports: 10 | Extracurriculars: 35
Episcopal
7 Pursuit
Aliso Viejo, CA 92656
(949) 448-9027
(2)
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Trinity School Photo
Trinity School
Gr: NS-5 | 161 students
Avg. class size: 18 students
Extracurriculars: 8
Episcopal
2650 Sand Hill Rd
Menlo Park, CA 94025
(650) 854-0288
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Westside Neighborhood School Photo
Westside Neighborhood School
Gr: NS-8 | 657 students
Avg. class size: 20 students
Sports: 7 | Extracurriculars: 11
5401 Beethoven Street
Los Angeles, CA 90066
(310) 574-8650
(10)
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York School Photo
York School
Gr: 8-12 | 170 students
Avg. class size: 14 students
Sports: 12 | Extracurriculars: 13
9501 York Road
Monterey, CA 93940
(831) 372-7338
(1)
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Frequently Asked Questions

What are the top ranked private schools belonging to California Association of Independent Schools (CAIS-CA) in California?
The top ranked private schools belonging to California Association of Independent Schools (CAIS-CA) in California include Idyllwild Arts Academy, Campbell Hall, and Foothill Country Day School.
How many private schools belonging to California Association of Independent Schools (CAIS-CA) are located in California?
200 private schools belonging to California Association of Independent Schools (CAIS-CA) are located in California.
How much do private schools belonging to California Association of Independent Schools (CAIS-CA) cost in California?
The average tuition cost is $38,894, which is higher than the California private school average tuition cost of $18,350.
How diverse are private schools belonging to California Association of Independent Schools (CAIS-CA) in California?
California private schools belonging to California Association of Independent Schools (CAIS-CA) are approximately 39% minority students, which is lower than the California private school average of 52%.
What percentage of private schools belonging to California Association of Independent Schools (CAIS-CA) are religiously affiliated in California?
25% of private schools belonging to California Association of Independent Schools (CAIS-CA) in California are religiously affiliated (most commonly Episcopal and Catholic).
200
Private Schools
68,420
Students
$38,894
Avg. Tuition
39%
Students of Color
7:1
Student-Teacher Ratio

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