Private School Review - Established 2003
Stratford School Altadena
Pasadena Waldorf School

Altadena Private Preschools (2026)

For the 2026 school year, there are 8 private preschools serving 1,082 students in Altadena, CA.
The average acceptance rate is 80%, which is lower than the California private preschool average acceptance rate of 83%.
13% of private preschools in Altadena, CA are religiously affiliated (most commonly Christian).

Quick Facts (2026)

Quick Facts (2026)

Top Ranked Altadena Private Preschools (2026)

Stratford School Altadena Photo
Stratford School Altadena
Gr: NS-6 | 169 students
Extracurriculars: 8
2046 Allen Avenue
Altadena, CA 91001
(626) 657-2742
View Profile
Map of Pasadena Waldorf High School
Pasadena Waldorf High School
Gr: PK-12 | 307 students
Specialized Curriculum
536 E Mendocino St
Altadena, CA 91001
(626) 204-0786
View Profile
Pasadena Waldorf School Photo
Pasadena Waldorf School
Gr: NS-12 | 340 students
Avg. class size: 20 students
Sports: 5 | Extracurriculars: 15
Specialized Curriculum
209 E. Mariposa Street
Altadena, CA 91001
(626) 794-9565
(4)
View Profile
Map of Altadena Boys & Girls Academy
Altadena Boys & Girls Academy
Gr: PK-6 | 18 students
2151 Lake Ave
Altadena, CA 91001
(626) 345-0540
View Profile
Map of Firehouse Preschool
Firehouse Preschool
Gr: PK-K | 24 students
Daycare / Preschool
1923 Allen Ave
Altadena, CA 91001
(626) 798-2865
View Profile
Map of Meher Montessori School
Meher Montessori School
Gr: PK-K | 30 students
Montessori School
943 E Altadena Drive
Altadena, CA 91001
(626) 798-1171
View Profile
Map of Princeton Montessori School
Princeton Montessori School
Gr: NS | 12 students
All-girls | Montessori School
922 E Mendocino St
Altadena, CA 91001
(626) 794-2244
View Profile
Map of Sahag-mesrob Armenian Christian School
Sahag-mesrob Armenian Christian School
Gr: PK-8 | 182 students
Christian
2501 Maiden Ln
Altadena, CA 91001
(626) 798-5020
View Profile
[+] Show Closed Private Schools in Altadena, California

Altadena, California Private Schools (Closed)

Map of Hathaway-Sycamores School
Hathaway-Sycamores School
Gr: K-12
Alternative School
2933 El Nido Drive
Altadena, CA 91001
(626) 395-7100
View Profile
Map of Oak Knoll Montessori School
Oak Knoll Montessori School
Gr: PK | 112 students
Montessori School
3544 Canon Blvd
Altadena, CA 91001
(626) 345-9929
View Profile

Altadena, CA Private School Trends (10-Year)

8
Private Schools
1,082
Students
+2.5% (+26 students) 10-yr
$25,586
Avg. Tuition
+59.4% (+$9,533) 10-yr
20
Avg. Class Size
+5.3% (+1 student) 10-yr
48%
Students of Color
+20.0% (+8.0 pp) 10-yr
11:1
Student-Teacher Ratio
Download town snapshot: CSV | XML | JSON Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission.
Enrollment & Diversity
Category
This Town (Altadena)
This State (CA)
# Schools
8 Schools
2,248 Schools

Trends in Total Number of Private Preschools

YearAltadena, CA Total Schools
20258
20249
20239
20229
20218
20208
20198
20187
20177
20168
20158
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# Students
1,082 Students
362,400 Students

Trends in the Average Number of Students Per Private Preschool

YearAltadena, CA AvgCalifornia (CA)National
2025135174191
2024133169187
2023155173185
2022136174188
2021115170184
2020115166179
201990168182
201891164181
2017110166183
2016141163181
2015132152173
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Students of Color
48%
50%

Percentage of Students of Color Trends (2015-2025)

YearAltadena, CA AvgCalifornia (CA)National
202548%50%32%
202448%49%32%
202333%50%32%
202241%48%31%
202134%48%32%
202034%47%31%
201982%48%31%
201894%47%30%
201733%48%31%
201639%48%31%
201540%47%31%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

0.72
0.70

Diversity Score Trends

YearAltadena, CA AvgCalifornia (CA)National
20250.720.700.65
20240.720.710.65
20230.600.710.65
20220.580.710.64
20210.680.710.64
20200.680.710.64
20190.720.720.64
20180.560.710.64
20170.390.710.62
20160.380.710.62
20150.380.710.62
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

▼ Show more data/charts: racial breakdown
# American Indian Students
1 Student
1,687 Students
% American Indian Students
n/a
n/a
# Asian Students
36 Students
30,525 Students
% Asian Students
6%
9%

Asian Student Percentage Trends

YearAltadena, CA AvgCalifornia (CA)National
20256%9%4%
20247%9%5%
20235%9%5%
20226%9%5%
20218%9%5%
20208%9%4%
20196%9%5%
20171%9%3%
20162%9%3%
20152%9%3%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# Hispanic Students
67 Students
43,560 Students
% Hispanic Students
12%
13%

Hispanic Student Percentage Trends

YearAltadena, CA AvgCalifornia (CA)National
202512%12%8%
202411%13%8%
20233%13%8%
20222%13%8%
20213%13%7%
20203%13%7%
201939%14%7%
201855%13%7%
20172%13%6%
20161%13%7%
20151%13%6%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# Black Students
60 Students
12,191 Students
% Black Students
10%
3%

Black Student Percentage Trends

YearAltadena, CA AvgCalifornia (CA)National
202510%4%6%
202410%4%6%
20238%4%6%
20228%4%6%
202112%4%7%
202012%3%7%
20195%3%6%
20185%3%6%
20174%4%6%
20163%4%6%
20153%4%6%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# White Students
199 Students
112,567 Students
% White Students
35%
33%

White Student Percentage Trends

YearAltadena, CA AvgCalifornia (CA)National
202535%32%48%
202433%33%48%
202356%33%48%
202260%36%50%
202144%35%50%
202044%35%51%
201925%36%52%
20182%36%52%
201776%38%54%
201677%38%54%
201577%38%54%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# Hawaiian Students
n/a
2,015 Students
% Hawaiian Students
n/a
1%
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
210 Students
143,224 Students
% of Others Students
37%
41%

Other Races Student Percentage Trends

YearAltadena, CA AvgCalifornia (CA)National
202537%42%34%
202439%40%33%
202328%39%33%
202224%37%31%
202133%37%31%
202033%38%31%
201925%36%30%
201838%37%30%
201717%35%30%
201617%35%29%
201517%35%29%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

All Ethnic Groups
Academics
# Teachers
95 Teachers
26,781 Teachers
Average Student-Teacher Ratio
11:1
14:1

Student-Teacher Ratio Trends (2015-2025)

YearAltadena, CA AvgCalifornia (CA)National
202511:114:112:1
202412:114:112:1
202311:114:112:1
202211:114:112:1
202111:114:112:1
202011:114:112:1
201910:114:112:1
201811:114:112:1
201711:114:112:1
201611:114:112:1
201511:114:113:1
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Average Faculty w/Advanced Degree
25%
58%

Percentage of Faculty With Advanced Degrees Trends (2015-2025)

YearAltadena, CA AvgCalifornia (CA)National
202525%58%51%
202425%57%51%
202325%55%51%
202225%56%51%
202125%56%50%
202025%55%50%
201925%56%50%
201825%54%50%
201725%54%49%
201625%53%49%
201525%51%48%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average Class Size
20 students
18 students

Class Size Trends (2015-2025)

YearAltadena, CA AvgCalifornia (CA)National
2025201816
2024201816
2023211816
2022241816
2021251816
2020251816
2019171816
2018201816
2017201816
2016191816
2015191716
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Tuition & Aid
Average Yearly Tuition Cost
$25,586
$15,667

Tuition Cost Trends (2015-2025)

YearAltadena, CA AvgCalifornia (CA)National
2025$25,586$15,764$12,988
2024$30,052$13,486$10,159
2023$30,052$12,933$9,500
2022$19,750$11,654$8,989
2021$19,750$11,328$8,661
2020$19,750$10,673$8,383
2019$13,617$10,366$8,266
2018$15,425$9,953$7,888
2017$15,425$9,748$7,628
2016$16,053$9,284$7,230
2015$16,053$8,988$6,984
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average % on Financial Aid
28%
25%

Percent on Financial Aid Trends (2015-2025)

YearAltadena, CA AvgCalifornia (CA)National
202528%25%31%
202428%25%30%
202328%25%30%
202228%26%29%
202128%25%29%
202028%24%29%
201928%25%28%
201828%24%27%
201728%24%26%
201629%22%25%
201529%22%24%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average Financial Aid Grant
$12,000
$5,765

Financial Aid Grant Trends (2015-2025)

YearAltadena, CA AvgCalifornia (CA)National
2025$12,000$5,597$4,864
2024$12,000$5,756$4,788
2023$12,000$6,813$4,663
2022$12,000$6,489$4,366
2021$10,000$4,847$4,213
2020$10,000$4,841$4,101
2019$10,000$4,288$3,985
2018$10,000$4,068$3,694
2017$10,000$4,127$3,658
2016$5,750$3,170$3,429
2015$5,750$3,271$3,393
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Admissions & Athletics
Average Acceptance Rate
80%
83%

Acceptance Rate Trends (2015-2025)

YearAltadena, CA AvgCalifornia (CA)National
202580%82%83%
202480%87%88%
202380%87%88%
202280%86%88%
202180%86%88%
202080%86%88%
201984%86%88%
201878%87%88%
201778%87%88%
201678%86%88%
201578%88%88%
Download Table: Download as CSV | Download as XML | Download as JSON
Download Full Town Data: Full Town Dataset XML | Full Town Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Average Number of Extracurriculars
12 extracurriculars
7 extracurriculars
Average Number of Sports
5 sports
6 sports

Frequently Asked Questions

What are the top ranked private preschools in Altadena, CA?
The top ranked private preschools in Altadena, CA include Pasadena Waldorf School and Pasadena Waldorf High School.
How many private preschools are located in Altadena?
8 private preschools are located in Altadena.
How diverse are private preschools in Altadena?
Altadena private preschools are approximately 48% minority students, which is lower than the California private school average of 50%.
What percentage of private preschools are religiously affiliated in Altadena?
13% of private preschools in Altadena are religiously affiliated (most commonly Christian).

Recent Articles

Will This Curriculum Still Matter in 2035?
Will This Curriculum Still Matter in 2035?
Learn how to evaluate future-ready private school curricula for 2035, focusing on durable knowledge, critical thinking, AI literacy, adaptability, communication, creativity, and real-world learning before choosing a school.
Private Schools for Creators, Trades & Startups
Private Schools for Creators, Trades & Startups
Explore how private schools support non-traditional career paths in creative industries, skilled trades, and entrepreneurship, plus what families should evaluate when choosing specialized programs for future-ready students today.
First 90 Days at Private School: Parent Guide
First 90 Days at Private School: Parent Guide
Learn how to read your child’s first 90 days at private school, distinguish healthy adjustment from genuine struggles, and know when academic, social, or emotional concerns require action.
Area schools map

Filter Schools

School Level
Must Offer Grade
▼ Show more
Gender
School Focus
Religious Affiliation
ADD/ADHD Support
Summer Program

Quick Links

SCHOOL SEARCH TOOLS:
SCHOOL BY TYPE (CA):
OPEN-HOUSES & JOBS:
PUBLIC & BOARDING SCHOOLS:
PRIVATE SCHOOL DATA: