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

Altadena Private Preschools

For the 2026-27 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 85%.
13% of private preschools in Altadena, CA are religiously affiliated (most commonly Christian).

Quick Facts (26-27)

Quick Facts (26-27)

Top Ranked Altadena Private Preschools (2026-27)

Stratford School of Altadena Photo
Stratford School of 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
2,253 Schools

Trends in Total Number of Private Preschools

YearAltadena, CA Total Schools
20258
20249
20239
20229
20218
20208
20198
20187
20177
20168
20158
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# Students
1,082 Students
363,983 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
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% 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%
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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
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Show more data/charts: racial breakdown
# American Indian Students
1 Student
1,696 Students
% American Indian Students
n/a
n/a
# Asian Students
36 Students
30,536 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%
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# Hispanic Students
67 Students
43,676 Students
% Hispanic Students
12%
12%

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%
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# Black Students
60 Students
12,375 Students
% Black Students
10%
4%

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%
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# White Students
199 Students
114,095 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%
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# 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
143,259 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%
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All Ethnic Groups
Academics
# Teachers
95 Teachers
27,061 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
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% 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%
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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
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Tuition & Aid
Average Yearly Tuition Cost
$25,586
$14,541

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
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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%
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Average Financial Aid Grant
$12,000
$5,948

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
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Admissions & Athletics
Average Acceptance Rate
80%
85%

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%
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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).

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