Home > Washington > King County

Best Sammamish Private Schools (2026)

Overview

This Town (Sammamish)

This State (WA)

# Schools

10 Schools

View Data

Trends in Total Number of Private Schools
Year	Sammamish, WA Total Schools
2025	10
2024	10
2023	9
2022	8
2021	8
2020	8
2019	8
2018	7
2017	7
2016	6
2015	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.

Student Body:

# Students

2,505 Students

120,008 Students

View Data

Trends in the Average Number of Students Per Private School
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	278	172	179
2024	278	170	172
2023	312	163	174
2022	231	157	185
2021	231	157	180
2020	239	151	171
2019	198	152	175
2018	228	150	172
2017	108	151	180
2016	115	148	178
2015	106	144	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.

% Average Students of Color

27%

32%

View Data

Percentage of Students of Color Trends (2015-2025)
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	27%	31%	34%
2024	27%	29%	34%
2023	33%	32%	33%
2022	31%	29%	33%
2021	31%	28%	32%
2020	23%	27%	32%
2019	35%	27%	31%
2018	24%	26%	31%
2017	27%	30%	32%
2016	27%	29%	32%
2015	27%	28%	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.

Academics and Faculty:

# Teachers

215 Teachers

10,043 Teachers

Average Student-Teacher Ratio

12:1

View Data

Student-Teacher Ratio Trends (2015-2025)
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	12:1	12:1	11:1
2024	11:1	12:1	11:1
2023	10:1	12:1	11:1
2022	10:1	12:1	11:1
2021	10:1	12:1	11:1
2020	10:1	12:1	12:1
2019	11:1	12:1	12:1
2018	12:1	12:1	12:1
2017	13:1	12:1	12:1
2016	13:1	12:1	12:1
2015	12:1	12:1	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

60%

59%

View Data

Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	60%	58%	55%
2024	60%	57%	54%
2023	60%	58%	54%
2022	62%	57%	54%
2021	62%	57%	54%
2020	62%	57%	54%
2019	71%	56%	53%
2018	74%	55%	53%
2017	53%	55%	53%
2016	23%	54%	52%
2015	23%	55%	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

18 students

15 students

View Data

Class Size Trends (2015-2025)
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	18	16	15
2024	20	16	15
2023	20	16	15
2022	20	15	15
2021	20	15	15
2020	20	15	15
2019	20	15	15
2018	20	15	15
2017	20	15	15
2016	21	15	15
2015	20	15	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.

Average Number of AP Courses

24 courses

11 courses

View Data

Trends in Average Number of AP Courses Offered
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	24	10	13
2024	24	8	12
2023	24	9	11
2022	24	8	11
2021	24	8	11
2020	24	8	11
2019	24	8	11
2018	24	8	11
2017	21	8	10
2016	21	7	10
2015	21	7	10

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 SAT score

1308

(Out of 1600)

1270

View Data

SAT Score Trends (2019-2025)
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	1,308	1,264	1,233
2024	1,308	1,257	1,230
2023	1,308	1,228	1,228
2022	1,308	1,235	1,229
2021	1,308	1,242	1,229
2020	1,308	1,233	1,226
2019	1,308	1,247	1,226

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 and Acceptance Rate:

Average Yearly Tuition Cost

$12,793

$15,753

View Data

Tuition Cost Trends (2015-2025)
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	$12,793	$15,533	$15,012
2024	$12,187	$14,062	$13,254
2023	$12,187	$13,102	$12,626
2022	$11,020	$12,138	$12,187
2021	$11,020	$11,838	$11,800
2020	$10,348	$11,300	$11,512
2019	$13,018	$10,936	$11,293
2018	$23,710	$10,668	$11,017
2017	$18,995	$10,030	$10,708
2016	$18,995	$9,472	$10,356
2015	$18,995	$9,211	$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 Summer Program Cost

$450

$851

View Data

Summer Program Cost Trends (2019-2025)
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	$450	$810	$1,152
2024	$450	$702	$1,128
2023	$450	$1,305	$1,156
2022	$450	$757	$1,102
2021	$450	$728	$1,125
2020	$425	$774	$1,217
2019	$335	$788	$1,305

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

29%

28%

View Data

Percent on Financial Aid Trends (2015-2025)
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	29%	29%	34%
2024	29%	28%	34%
2023	29%	27%	34%
2022	29%	27%	33%
2021	29%	26%	33%
2020	29%	27%	32%
2019	29%	27%	31%
2018	71%	26%	30%
2017	30%	25%	30%
2016	30%	23%	29%
2015	30%	23%	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

$16,809

$9,139

View Data

Financial Aid Grant Trends (2018-2025)
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	$16,809	$8,921	$7,073
2024	$16,809	$8,821	$6,930
2023	$16,809	$6,927	$6,469
2022	$14,200	$6,141	$6,289
2021	$14,200	$6,073	$6,055
2020	$14,200	$5,578	$5,921
2019	$14,200	$5,841	$5,795
2018	$13,000	$5,265	$5,456

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 Acceptance Rate

99%

82%

Students by Ethnicity:

0.59

0.64

View Data

Diversity Score Trends
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	0.59	0.64	0.65
2024	0.59	0.64	0.65
2023	0.59	0.64	0.65
2022	0.59	0.62	0.64
2021	0.59	0.63	0.64
2020	0.59	0.63	0.64
2019	0.52	0.61	0.63
2018	0.52	0.62	0.63
2017	0.56	0.61	0.61
2016	0.56	0.60	0.61
2015	0.55	0.60	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.

# American Indian Students

10 Students

1,228 Students

% American Indian Students

n/a

View Data

Percentage of Private School Students of American Indian Trends
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2019	2%	2%	1%
2018	2%	2%	2%
2017	2%	2%	1%
2016	2%	2%	1%
2015	2%	2%	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.

# Asian Students

181 Students

9,040 Students

% Asian Students

View Data

Asian Student Percentage Trends
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	8%	8%	5%
2024	8%	8%	5%
2023	7%	8%	5%
2022	6%	7%	4%
2021	6%	7%	4%
2020	6%	7%	4%
2019	5%	6%	4%
2018	5%	6%	4%
2017	3%	6%	4%
2016	4%	6%	4%
2015	4%	6%	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

90 Students

6,307 Students

% Hispanic Students

View Data

Hispanic Student Percentage Trends
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	4%	5%	9%
2024	4%	5%	9%
2023	4%	5%	9%
2022	3%	5%	8%
2021	3%	5%	9%
2020	3%	5%	9%
2019	3%	5%	8%
2018	3%	5%	8%
2017	3%	5%	8%
2016	3%	5%	8%
2015	3%	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.

# Black Students

65 Students

3,815 Students

% Black Students

View Data

Black Student Percentage Trends
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	3%	3%	7%
2024	3%	3%	7%
2023	3%	3%	8%
2022	1%	3%	7%
2021	1%	3%	7%
2020	1%	3%	8%
2019	1%	3%	7%
2018	1%	3%	7%
2017	1%	3%	7%
2016	1%	3%	7%
2015	1%	3%	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

1,410 Students

59,141 Students

% White Students

56%

50%

View Data

White Student Percentage Trends
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	56%	50%	52%
2024	56%	50%	52%
2023	57%	51%	52%
2022	52%	53%	54%
2021	52%	53%	54%
2020	50%	53%	54%
2019	65%	55%	56%
2018	65%	55%	56%
2017	58%	56%	58%
2016	58%	56%	58%
2015	61%	57%	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

11 Students

651 Students

% Hawaiian Students

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

732 Students

38,436 Students

% of Others Students

29%

32%

View Data

Other Races Student Percentage Trends
Year	Sammamish, WA Average	Washington (WA) Average	National Average
2025	29%	32%	26%
2024	29%	32%	26%
2023	29%	31%	25%
2022	37%	30%	25%
2021	37%	30%	25%
2020	39%	29%	24%
2019	23%	29%	24%
2018	23%	29%	23%
2017	33%	28%	22%
2016	32%	28%	22%
2015	29%	27%	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

Extracurriculars and Sports:

Average Number of Extracurriculars

14 extracurriculars

8 extracurriculars

Average Number of Sports

10 sports

6 sports

Frequently Asked Questions

What are the top-ranked private schools in Sammamish, WA?

The private schools in Sammamish, WA include Eastside Catholic School and Eastside Catholic High School.

How many private schools are located in Sammamish?

10 private schools are located in Sammamish.

How diverse are private schools in Sammamish?

Sammamish private schools are approximately 27% minority students, which is lower than the Washington private school average of 32%.

What percentage of students in Sammamish go to private school?

17% of all K-12 students in Sammamish are educated in private schools (compared to the WA state average of 10%).

What percentage of private schools are religiously affiliated in Sammamish?

30% of private schools in Sammamish are religiously affiliated (most commonly Catholic and Other).

Which private schools in Sammamish are often viewed compared to one another?

Popular comparisons of private schools in Sammamish include: Sammamish KinderCare vs. Sammamish Childrens School, Aster Montessori vs. Arbor Schools, Sammamish Childrens School vs. Sammamish KinderCare

Recent Articles

July 28, 2026

The True Cost of 'Required' Private School Expenses Beyond Tuition

Discover the required private school expenses beyond tuition and learn how to budget for the true cost of a private school education.

July 28, 2026

How to Compare Schools When Every Website Says "Individualized"

Learn how to compare private schools beyond marketing language by evaluating academics, support services, teaching methods, and student outcomes.

July 28, 2026

What to Ask Before Signing an Enrollment Contract

Learn the essential questions to ask before signing a private school enrollment contract, from tuition policies to withdrawal terms and financial aid.