Beta You're viewing our redesigned school page. Prefer the classic layout?

St Marks School - Altadena

Private, Episcopal Grades K-6

210

Students ?

9.7

Student/teacher ratio ?

1050 E Altadena Dr
Altadena, CA 91001-2041

(626) 798-8858

Racial breakdown:

White:

47.6%

Asian:

23.8%

Two or more races:

14.3%

See top rated California public schools

Compare St Marks School - Altadena to nearby private schools!

★

No ratings yet

Be the first to rate St Marks School - Altadena and help other families decide.

Rate St Marks School - Altadena

Have first-hand experience? A quick rating - and a sentence or two about what stands out (teachers, academics, safety, communication) - helps other families know what to expect.

Takes about a minute. We email you a link to verify your review - your address is never shown publicly.

Tap a star to rate

Reviews

No written reviews yet. If you know this school, be the first to share what stands out.

Schools Near St Marks School - Altadena

Load more schools when map is moved

Ranking:

E Elementary M Middle H High A Alternative P Private

School	Students/Teachers	Per Pupil Expenditures (2025)
St Marks School - Altadena	Private, Episcopal	K-6	1050 E Altadena Dr	Altadena	91001	Los Angeles County	(626) 798-8858	210	22	9.7	100 (47.6%)	15 (7.1%)	15 (7.1%)	50 (23.8%)	0 (0.0%)	0 (0.0%)	30 (14.3%)
Sahag-Mesrob Armenian Christian School	Private, Christian (no specific denomination)	PK, KG-8	2501 N Maiden Ln	Altadena	91001	Los Angeles County	(626) 798-5020	186	14	9.6	119 (64.0%)	2 (1.1%)	9 (4.8%)	1 (0.5%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
Meher Montessori School	Private, Nonsectarian	PK-K	943 E Altadena Dr	Altadena	91001	Los Angeles County	(626) 798-1171	18	1	1.0	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
Princeton Montessori School	Private, Nonsectarian	PK-K	922 E Mendocino St	Altadena	91001	Los Angeles County	(626) 794-2244	44	7	1.7	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
Pasadena Waldorf High School	Private, Nonsectarian	PK, KG-12	536 E Mendocino St	Altadena	91001	Los Angeles County	(626) 204-0786
St Elizabeth School	Private, Roman Catholic	K-8	1840 Lake Ave	Altadena	91001	Los Angeles County	(626) 797-7727	154	11	13.8	19 (12.3%)	20 (13.0%)	69 (44.8%)	4 (2.6%)	0 (0.0%)	5 (3.2%)	37 (24.0%)
Pasadena Waldorf School	Private, Nonsectarian	PK, KG-12	209 E Mariposa St	Altadena	91001	Los Angeles County	(162) 679-4956	247	30	6.1	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
Fair Oaks School	Private, Nonsectarian	K-5	2704 Fair Oaks Ave	Altadena	91001	Los Angeles County	(818) 516-7603	30	6	5.0	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
Oak Knoll Montessori School	Private, Nonsectarian	PK, KG-8	3544 Canon Blvd	Altadena	91001	Los Angeles County	(626) 345-9929	115	25	2.0	30 (26.1%)	2 (1.7%)	10 (8.7%)	5 (4.3%)	0 (0.0%)	0 (0.0%)	4 (3.5%)
Stratford School- Altadena Allen	Private, Nonsectarian	PK, KG-5	2046 Allen Ave	Altadena	91001	Los Angeles County	(626) 794-1000	214	12	8.9	27 (12.6%)	3 (1.4%)	20 (9.3%)	49 (22.9%)	0 (0.0%)	3 (1.4%)	5 (2.3%)

Frequently Asked Questions about St Marks School - Altadena

How many students attend St Marks School - Altadena?

In the 2021-22 school year, 210 students attended St Marks School - Altadena.

What is the racial makeup of St Marks School - Altadena?

Students at St Marks School - Altadena are 48% White, 24% Asian, 14% Two or more races, 7% African American, 7% Hispanic.

Rate St Marks School - Altadena!

Other helpful SchoolDigger resources...

Compare to nearby schools

CACalifornia Public School Rankings

CACalifornia District Rankings

Private Schools in Altadena, CA

Sign up for updates!

Be the first to know when there is an update for St Marks School - Altadena!

Latest California data All new data »

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

2024–25 CSA Spanish test scoresDec 22, 2025

2024–25 dropout rates & graduation ratesNov 14, 2025

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.

School								Students/Teachers											Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Total
St Marks School - Altadena	Private, Episcopal	K-6	1050 E Altadena Dr	Altadena	91001	Los Angeles County	(626) 798-8858	210	22	9.7		100 (47.6%)	15 (7.1%)	15 (7.1%)	50 (23.8%)	0 (0.0%)	0 (0.0%)	30 (14.3%)
Sahag-Mesrob Armenian Christian School	Private, Christian (no specific denomination)	PK, KG-8	2501 N Maiden Ln	Altadena	91001	Los Angeles County	(626) 798-5020	186	14	9.6		119 (64.0%)	2 (1.1%)	9 (4.8%)	1 (0.5%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
Meher Montessori School	Private, Nonsectarian	PK-K	943 E Altadena Dr	Altadena	91001	Los Angeles County	(626) 798-1171	18	1	1.0		0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
Princeton Montessori School	Private, Nonsectarian	PK-K	922 E Mendocino St	Altadena	91001	Los Angeles County	(626) 794-2244	44	7	1.7		0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
Pasadena Waldorf High School	Private, Nonsectarian	PK, KG-12	536 E Mendocino St	Altadena	91001	Los Angeles County	(626) 204-0786
St Elizabeth School	Private, Roman Catholic	K-8	1840 Lake Ave	Altadena	91001	Los Angeles County	(626) 797-7727	154	11	13.8		19 (12.3%)	20 (13.0%)	69 (44.8%)	4 (2.6%)	0 (0.0%)	5 (3.2%)	37 (24.0%)
Pasadena Waldorf School	Private, Nonsectarian	PK, KG-12	209 E Mariposa St	Altadena	91001	Los Angeles County	(162) 679-4956	247	30	6.1		0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
Fair Oaks School	Private, Nonsectarian	K-5	2704 Fair Oaks Ave	Altadena	91001	Los Angeles County	(818) 516-7603	30	6	5.0		0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
Oak Knoll Montessori School	Private, Nonsectarian	PK, KG-8	3544 Canon Blvd	Altadena	91001	Los Angeles County	(626) 345-9929	115	25	2.0		30 (26.1%)	2 (1.7%)	10 (8.7%)	5 (4.3%)	0 (0.0%)	0 (0.0%)	4 (3.5%)
Stratford School- Altadena Allen	Private, Nonsectarian	PK, KG-5	2046 Allen Ave	Altadena	91001	Los Angeles County	(626) 794-1000	214	12	8.9		27 (12.6%)	3 (1.4%)	20 (9.3%)	49 (22.9%)	0 (0.0%)	3 (1.4%)	5 (2.3%)