Marin Horizon School Photo - Marin Horizon is an independent, toddler through 8th grade, co-educational day school located in in Mill Valley, CA, only 15 minutes from San Francisco. Nestled at the base of Mt. Tamalpais, our beautiful campus is surrounded by trails and open space.

Best California Private Schools Belonging to State or regional independent school association (2025-26)

For the 2025-26 school year, there are 57 private schools belonging to State or regional independent school association serving 17,265 students in California. You can also find more schools membership associations in California.
The top ranked private schools belonging to State or regional independent school association in California include The Branson School, Westridge School, and The Bishop's School.
The average tuition cost is $40,644, which is higher than the California private school average tuition cost of $18,027.
33% of private schools belonging to State or regional independent school association in California are religiously affiliated (most commonly Catholic and Seventh Day Adventist).

Top Ranked Private Schools Belonging to State or regional independent school association in California (2025-26)

School
Location
Quick Facts
Drew School
Drew School Photo - Drew School believes in teenagers - their ideas, their dreams, their opinions, and their potential. That's why we've created a high school community that challenges the traditional definition of success and celebrates achievement one student at a time.
(3)
2901 California St
San Francisco, CA 94115
(415) 430-3737
Gr: 9-12 | 297 students Avg. class size: 14 students Sports: 13 Tuition & acceptance rate listed
Park Day School
Park Day School Photo - Studying renewable energy and building solar powered home models
(29)
360 42nd St
Oakland, CA 94609
(510) 653-0317
Gr: PK-8 | 342 students Avg. class size: 18 students Sports: 7 | Extracurrculars: 19 Tuition & acceptance rate listed
Westridge School
Westridge School Photo - Westridge is an independent, forward-thinking girls school for students in grades 4-12. We are committed to educating intellectually adventurous thinkers, and courageous, compassionate leaders.
All-girls
(4)
324 Madeline Dr
Pasadena, CA 91105
(626) 799-1153
Gr: 4-12 | 550 students Avg. class size: 15 students Sports: 14 | Extracurrculars: 44 Tuition & acceptance rate listed
Bentley School
(3)
1 Hiller Dr
Oakland, CA 94618
(510) 843-2512
Gr: K-12 | 700 students Avg. class size: 15 students
The Bishop's School
The Bishop's School Photo - By their very nature, Bishop's students opt in. This includes the visual and performing arts, where students often go beyond their studies to become dancers, musicians, actors and artists of every stripe. Confidence in the arts opens new worlds to our students - and brings beauty to ours.
(Episcopal)
(2)
7607 La Jolla Blvd
La Jolla, CA 92037
(858) 459-4021
Gr: 6-12 | 800 students Avg. class size: 14 students Sports: 18 Tuition listed
The Branson School
39 Fernhill Avenue
Ross, CA 94957
(415) 454-3612
Gr: 9-12 | 319 students Avg. class size: 14 students Tuition & acceptance rate listed
Central Valley Christian Academy
Central Valley Christian Academy Photo - MAA is dedicated to a Christ-like atmosphere. This sculpture reminds us of the influence Christ.
(Seventh Day Adventist)
(1)
2020 Academy Pl
Ceres, CA 95307
(209) 537-4521
Gr: PK-12 | 189 students Avg. class size: 25 students Sports: 6 | Extracurrculars: 4 Acceptance rate listed
Children's Day School
333 Dolores Street
San Francisco, CA 94110
(415) 861-5432
Gr: PK-8 | 511 students Avg. class size: 22 students Sports: 4 Tuition & acceptance rate listed
Convent & Stuart Hall
Convent & Stuart Hall Photo
(Catholic)
2222 Broadway St
San Francisco, CA 94115
(415) 563-2900
Gr: K-12 Sports: 16 Tuition listed
1714 21st St
Santa Monica, CA 90404
(310) 309-9863
Gr: K-12 | 1,218 student Tuition listed
4543 Crown Ave
La Canada Flintridge, CA 91011
(818) 790-1178
Gr: 7-12 | 530 students Avg. class size: 8 students Sports: 15 | Extracurrculars: 82 Tuition listed
Hillsides Education Center
Special Education School
940 Avenue 64
Pasadena, CA 91105
(323) 224-2274
Gr: 3-12 | 44 students
Marin Academy
Marin Academy Photo
1600 Mission Avenue
San Rafael, CA 94901
(415) 453-2808
Gr: 9-12 | 463 students Avg. class size: 15 students Sports: 15 | Extracurrculars: 42 Tuition listed
Marin Horizon School
Marin Horizon School Photo - Marin Horizon is an independent, toddler through 8th grade, co-educational day school located in in Mill Valley, CA, only 15 minutes from San Francisco. Nestled at the base of Mt. Tamalpais, our beautiful campus is surrounded by trails and open space.
(8)
305 Montford Ave
Mill Valley, CA 94941
(415) 388-8408
Gr: NS-8 | 294 students Avg. class size: 16 students Sports: 5 | Extracurrculars: 13 Tuition listed
10 Marconi
Irvine, CA 92618
(949) 281-0054
Gr: PK-8 | 272 students
The Nueva School
Special Program Emphasis
131 E 28th Ave
San Mateo, CA 94403
(650) 235-7172
Gr: PK-12 | 967 students
Ojai Valley School
(4)
723 El Paseo Road
Ojai, CA 93023
(805) 640-2575
Gr: PK-12 | 286 students Tuition listed
Polytechnic School
1030 E California Blvd
Pasadena, CA 91106
(626) 396-6303
Gr: K-12 | 871 students Avg. class size: 18 students Tuition listed
Queen Of All Saints School
(Catholic)
(1)
2391 Grant St
Concord, CA 94520
(925) 685-8700
Gr: PK-8 | 308 students
Sacred Heart Schools Atherton
(Catholic)
150 Valparaiso Ave
Atherton, CA 94027
(650) 473-4057
Gr: PK-12 | 1,070 student
St. Elisabeth School
(Catholic)
(3)
6635 Tobias Ave
Van Nuys, CA 91405
(818) 779-1766
Gr: K-8 | 116 students Tuition listed
St. Johns Episcopal School
St. Johns Episcopal School Photo
(Episcopal)
(6)
30382 Via Con Dios
Rancho Santa Margarita, CA 92688
(949) 858-5144
Gr: PK-8 | 568 students Avg. class size: 16 students Sports: 10 | Extracurrculars: 15 Tuition & acceptance rate listed
350 Masonic Ave
San Francisco, CA 94118
(415) 586-3602
Gr: K-8 | 415 students Tuition listed
3630 Afton Rd
San Diego, CA 92123
(858) 279-3300
Gr: PK-8 | 284 students Tuition listed
Southwestern Academy
Southwestern Academy Photo - San Marino Campus
(2)
2800 MONTEREY ROAD
San Marino, CA 91108
(626) 799-5010
Gr: 6-12 | 70 students Avg. class size: 8 students Sports: 7 | Extracurrculars: 9 Tuition & acceptance rate listed
24800 Dolores St
Carmel By The Sea, CA 93921
(831) 574-4600
Gr: PK-8 | 218 students Tuition & acceptance rate listed
Town School For Boys
All-boys
(1)
2750 Jackson Street
San Francisco, CA 94115
(415) 746-1114
Gr: K-8 | 414 students Avg. class size: 22 students Tuition listed
1563 Page St
San Francisco, CA 94117
(415) 626-2919
Gr: 9-12 | 420 students Avg. class size: 15 students Sports: 15 | Extracurrculars: 6 Tuition listed
Viewpoint School
(2)
23620 Mulholland Hwy
Calabasas, CA 91302
(818) 591-6580
Gr: K-12 | 1,159 student Avg. class size: 16 students Sports: 16 Tuition & acceptance rate listed
1317 N Crescent Heights Blvd
Los Angeles, CA 90046
(323) 822-7900
Gr: PK-12 | 78 students Avg. class size: 6 students Tuition listed
11811 W Olympic Blvd
Los Angeles, CA 90064
(310) 478-7189
Gr: K-12 | 693 students
Alpha-shen Preschool & Kindergarten
Alpha-shen Preschool & Kindergarten Photo - Alpha Shen Kindergarten Open House 2019
Daycare / Preschool
(2)
618 N Moore Ave
Monterey Park, CA 91754
(626) 282-2011
Gr: PK-K | 44 students Avg. class size: 12 students Sports: 1
Alta Vista School
Alta Vista School Photo - At Alta Vista School, every student is a scientist from day one. We equip them with tools to explore, solve problems, and gain knowledge, sparking a lifelong passion for discovery.
Special Program Emphasis
450 Somerset Street
San Francisco, CA 94134
(415) 467-3700
Gr: PK-8 | 248 students Sports: 3 | Extracurrculars: 6 Tuition listed
Calmont School
1666 Las Virgenes Canyon Road
Calabasas, CA 91302
(818) 880-8820
Gr: PK-8 | 118 students
Casa Pacifica Nonpublic School
Special Education School
1722 S Lewis Rd
Camarillo, CA 93012
(805) 366-4072
Gr: 3-12 | 54 students Avg. class size: 25 students
Show 22 more private schools in California (out of 57 total schools)
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