For the 2025-26 school year, there are 3 private high schools serving 698 students in Altadena, CA.
The top-ranked private high schools in Altadena, CA include Pasadena Waldorf High School and Pasadena Waldorf School.
The average acceptance rate is 80%, which is higher than the California private high school average acceptance rate of 78%.
Top-Ranked Altadena Private High Schools (2025-26)
School
Location
Quick Facts
Pasadena Waldorf High School
Special Program Emphasis
536 E Mendocino St
Altadena, CA 91001
(626) 204-0786
Altadena, CA 91001
(626) 204-0786
Gr: PK-12 | 307 students Tuition listed
209 E. Mariposa Street
Altadena, CA 91001
(626) 794-9565
Altadena, CA 91001
(626) 794-9565
Gr: NS-12 | 340 students Avg. class size: 20 students Sports: 5 | Extracurrculars: 15 Tuition & acceptance rate listed
Five Acres School![Five Acres School Photo - Our Campus Five Acres School Photo - Our Campus]()

Special Education School
760 Mountain View Street
Altadena, CA 91001
(626) 798-6793
Altadena, CA 91001
(626) 798-6793
Gr: 3-10 | 51 students
Altadena, California Private Schools (Closed)
School
Location
Quick Facts
Hathaway-Sycamores School (Closed 2016)
Alternative School
2933 El Nido Drive
Altadena, CA 91001
(626) 395-7100
Altadena, CA 91001
(626) 395-7100
Gr: K-12
Oak Knoll Montessori School (Closed 2025)
Montessori School
3544 Canon Blvd
Altadena, CA 91001
(626) 345-9929
Altadena, CA 91001
(626) 345-9929
Gr: PK | 112 students
Frequently Asked Questions
What are the top-ranked private high schools in Altadena, CA?
The top-ranked private high schools in Altadena, CA include Pasadena Waldorf High School and Pasadena Waldorf School.
How many private high schools are located in Altadena?
3 private high schools are located in Altadena.
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