[+] Show Closed 草榴社区 Schools in Altadena, California

Altadena, California 草榴社区 Schools (Closed)

Hathaway-Sycamores School

Gr: K-12

Alternative School

2933 El Nido Drive

Altadena, CA 91001

(626) 395-7100

Add to Compare

View Profile

Oak Knoll Montessori School

Gr: PK | 112 students

Montessori School

3544 Canon Blvd

Altadena, CA 91001

(626) 345-9929

Add to Compare

View Profile

Altadena, CA 草榴社区 School Trends (10-Year)

草榴社区 Schools

-8.3% (-1 school) 10-yr

1,351

Students

-9.8% (-147 students) 10-yr

$19,782

Avg. Tuition

+26.0% (+$4,080) 10-yr

Avg. Class Size

-10.5% (-2 students) 10-yr

54%

Students of Color

+22.7% (+10.0 pp) 10-yr

11:1

Student-Teacher Ratio

+10.0% (+1.0) 10-yr

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

11 Schools

3,910 Schools

View Data

Trends in Total Number of 草榴社区 Schools
Year	Altadena, CA Total Schools
2025	11
2024	13
2023	11
2022	11
2021	12
2020	13
2019	12
2018	12
2017	12
2016	12
2015	12

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

1,351 Students

659,293 Students

View Data

Trends in the Average Number of Students Per 草榴社区 School
Year	Altadena, CA Avg	California (CA)	National
2025	123	180	179
2024	129	175	172
2023	152	181	174
2022	138	189	185
2021	140	185	180
2020	132	179	171
2019	123	179	175
2018	121	173	172
2017	132	179	180
2016	136	173	178
2015	125	162	167

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

54%

52%

View Data

Percentage of Students of Color Trends (2015-2025)
Year	Altadena, CA Avg	California (CA)	National
2025	54%	51%	34%
2024	51%	51%	34%
2023	41%	50%	33%
2022	49%	48%	33%
2021	35%	48%	32%
2020	36%	48%	32%
2019	48%	48%	31%
2018	48%	47%	31%
2017	41%	50%	32%
2016	43%	49%	32%
2015	44%	49%	32%

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.

0.74

View Data

Diversity Score Trends
Year	Altadena, CA Avg	California (CA)	National
2025	0.74	0.74	0.65
2024	0.75	0.74	0.65
2023	0.67	0.74	0.65
2022	0.67	0.73	0.64
2021	0.67	0.73	0.64
2020	0.68	0.73	0.64
2019	0.67	0.73	0.63
2018	0.67	0.73	0.63
2017	0.49	0.72	0.61
2016	0.52	0.72	0.61
2015	0.54	0.72	0.61

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

3,575 Students

% American Indian Students

n/a

# Asian Students

45 Students

71,780 Students

% Asian Students

11%

View Data

Asian Student Percentage Trends
Year	Altadena, CA Avg	California (CA)	National
2025	5%	11%	5%
2024	10%	11%	5%
2023	5%	11%	5%
2022	5%	10%	4%
2021	5%	10%	4%
2020	6%	10%	4%
2019	5%	10%	4%
2018	5%	10%	4%
2017	4%	10%	4%
2016	4%	10%	4%
2015	5%	10%	4%

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

152 Students

104,409 Students

% Hispanic Students

18%

16%

View Data

Hispanic Student Percentage Trends
Year	Altadena, CA Avg	California (CA)	National
2025	18%	16%	9%
2024	15%	16%	9%
2023	10%	16%	9%
2022	11%	16%	8%
2021	11%	16%	9%
2020	11%	16%	9%
2019	25%	16%	8%
2018	25%	17%	8%
2017	10%	17%	8%
2016	10%	17%	8%
2015	9%	17%	8%

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

90 Students

30,223 Students

% Black Students

11%

View Data

Black Student Percentage Trends
Year	Altadena, CA Avg	California (CA)	National
2025	11%	5%	7%
2024	9%	5%	7%
2023	9%	5%	8%
2022	9%	4%	7%
2021	9%	5%	7%
2020	9%	5%	8%
2019	8%	4%	7%
2018	8%	4%	7%
2017	7%	5%	7%
2016	7%	5%	7%
2015	6%	5%	8%

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

271 Students

235,771 Students

% White Students

32%

37%

View Data

White Student Percentage Trends
Year	Altadena, CA Avg	California (CA)	National
2025	32%	37%	52%
2024	34%	37%	52%
2023	48%	38%	52%
2022	50%	40%	54%
2021	50%	40%	54%
2020	49%	40%	54%
2019	49%	41%	56%
2018	49%	41%	56%
2017	70%	43%	58%
2016	68%	43%	58%
2015	66%	43%	58%

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

5,499 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

285 Students

188,336 Students

% of Others Students

34%

29%

View Data

Other Races Student Percentage Trends
Year	Altadena, CA Avg	California (CA)	National
2025	34%	29%	26%
2024	32%	29%	26%
2023	28%	28%	25%
2022	25%	28%	25%
2021	25%	27%	25%
2020	25%	27%	24%
2019	13%	26%	24%
2018	13%	26%	23%
2017	9%	24%	22%
2016	11%	24%	22%
2015	14%	23%	21%

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

119 Teachers

55,641 Teachers

Average Student-Teacher Ratio

11:1

12:1

View Data

Student-Teacher Ratio Trends (2015-2025)
Year	Altadena, CA Avg	California (CA)	National
2025	11:1	12:1	11:1
2024	11:1	12:1	11:1
2023	12:1	12:1	11:1
2022	12:1	12:1	11:1
2021	12:1	13:1	11:1
2020	12:1	13:1	12:1
2019	11:1	12:1	12:1
2018	11:1	12:1	12:1
2017	11:1	13:1	12:1
2016	11:1	13:1	12:1
2015	10:1	13:1	12:1

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%

59%

View Data

Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	Altadena, CA Avg	California (CA)	National
2025	25%	59%	55%
2024	25%	58%	54%
2023	25%	58%	54%
2022	25%	59%	54%
2021	25%	59%	54%
2020	25%	58%	54%
2019	25%	58%	53%
2018	25%	58%	53%
2017	25%	58%	53%
2016	25%	57%	52%
2015	25%	57%	52%

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

17 students

View Data

Class Size Trends (2015-2025)
Year	Altadena, CA Avg	California (CA)	National
2025	17	17	15
2024	19	17	15
2023	21	17	15
2022	24	17	15
2021	24	17	15
2020	20	17	15
2019	18	17	15
2018	18	17	15
2017	20	17	15
2016	18	17	15
2015	19	17	15

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

$19,782

$18,350

View Data

Tuition Cost Trends (2015-2025)
Year	Altadena, CA Avg	California (CA)	National
2025	$19,782	$18,076	$15,012
2024	$19,113	$17,195	$13,254
2023	$21,784	$16,660	$12,626
2022	$12,500	$15,979	$12,187
2021	$12,697	$15,298	$11,800
2020	$12,023	$14,748	$11,512
2019	$11,838	$14,369	$11,293
2018	$11,838	$13,813	$11,017
2017	$12,838	$13,422	$10,708
2016	$15,702	$12,852	$10,356
2015	$15,702	$11,932	$9,939

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%

29%

View Data

Percent on Financial Aid Trends (2015-2025)
Year	Altadena, CA Avg	California (CA)	National
2025	28%	29%	34%
2024	28%	29%	34%
2023	28%	29%	34%
2022	28%	28%	33%
2021	29%	28%	33%
2020	29%	28%	32%
2019	29%	27%	31%
2018	29%	27%	30%
2017	29%	27%	30%
2016	29%	26%	29%
2015	29%	25%	28%

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

$9,066

View Data

Financial Aid Grant Trends (2015-2025)
Year	Altadena, CA Avg	California (CA)	National
2025	$12,000	$8,932	$7,073
2024	$12,000	$8,712	$6,930
2023	$12,000	$8,186	$6,469
2022	$12,000	$8,205	$6,289
2021	$8,150	$7,081	$6,055
2020	$8,150	$6,794	$5,921
2019	$8,150	$6,413	$5,795
2018	$8,150	$5,977	$5,456
2017	$8,150	$5,752	$5,319
2016	$5,750	$5,279	$5,105
2015	$5,750	$5,100	$5,030

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

78%

80%

View Data

Acceptance Rate Trends (2015-2025)
Year	Altadena, CA Avg	California (CA)	National
2025	78%	80%	81%
2024	78%	84%	85%
2023	80%	84%	85%
2022	80%	84%	85%
2021	80%	84%	85%
2020	89%	84%	85%
2019	84%	84%	85%
2018	84%	84%	85%
2017	84%	85%	85%
2016	84%	84%	85%
2015	84%	84%	85%

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

9 extracurriculars

Average Number of Sports

6 sports

7 sports

Frequently Asked Questions

What are the top ranked private schools in Altadena, CA?

The private schools in Altadena, CA include Pasadena Waldorf School and Pasadena Waldorf High School.

How many private schools are located in Altadena?

11 private schools are located in Altadena.

How diverse are private schools in Altadena?

Altadena private schools are approximately 54% minority students, which is higher than the California private school average of 52%.

What percentage of students in Altadena go to private school?

36% of all K-12 students in Altadena are educated in private schools (compared to the CA state average of 10%).

What percentage of private schools are religiously affiliated in Altadena?

18% of private schools in Altadena are religiously affiliated (most commonly Christian and Catholic).

Recent Articles

September 08, 2026

When Your Child Outpaces the 草榴社区 School Curriculum

Learn what parents can do when a child finishes private school coursework early, including acceleration, curriculum compacting, advanced classes, enrichment, and signs the school needs a new plan.

September 08, 2026

How Much Teacher Access Does Your Child Get?

Learn how to evaluate teacher access at private schools, including extra-help time, advising, communication, academic support, and the questions families should ask before choosing a school today.

September 08, 2026

When a 草榴社区 School Teacher Leaves Midyear

When a private school teacher leaves midyear, parents need clear answers. Learn what schools should do, what children may experience, and when a departure signals deeper concerns.

Quick Links

SCHOOL SEARCH TOOLS:

SCHOOL BY TYPE (CA):

OPEN-HOUSES & JOBS:

PUBLIC & BOARDING SCHOOLS:

PRIVATE SCHOOL DATA:

草榴社区

Quick Facts (2026-27)

Quick Facts (2026-27)

Top Ranked Altadena 草榴社区 Schools (2026-27)

Altadena, California 草榴社区 Schools (Closed)

Altadena, CA 草榴社区 School Trends (10-Year)

Trends in Total Number of 草榴社区 Schools

Trends in the Average Number of Students Per 草榴社区 School

Percentage of Students of Color Trends (2015-2025)

Diversity Score Trends

Asian Student Percentage Trends

Hispanic Student Percentage Trends

Black Student Percentage Trends

White Student Percentage Trends

Other Races Student Percentage Trends

Student-Teacher Ratio Trends (2015-2025)

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

Class Size Trends (2015-2025)

Tuition Cost Trends (2015-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

Frequently Asked Questions

Recent Articles

Filter Schools

Quick Links