Private School Review - Established 2003
Northwest Yeshiva High School Top 6 · Highest Avg. SAT Score (WA)
French American School of Puget Sound Top 7 · Lowest Acceptance Rate (WA)
St. Monica Catholic School Top 16 · Largest Endowment (WA)

Mercer Island Private Schools

For the 2026-27 school year, there are 6 private schools serving 939 students in Mercer Island, WA, 19% of all K-12 students in Mercer Island, WA are educated in private schools versus public schools (compared to the WA state average of 10%).
The average acceptance rate is 60%, which is lower than the Washington private school average acceptance rate of 85%.
33% of private schools in Mercer Island, WA are religiously affiliated (most commonly Jewish and Catholic).

Quick Facts (26-27)

Quick Facts (26-27)

Top Ranked Mercer Island Private Schools (2026-27)

French American School of Puget Sound Photo
French American School of Puget Sound
Gr: PK-8 | 473 students
Avg. class size: 18 students
Sports: 5
Specialized Curriculum
3795 East Mercer Way
Mercer Island, WA 98040
(206) 275-3533
(8)
View Profile
Northwest Yeshiva High School Photo
Northwest Yeshiva High School
Gr: 9-12 | 65 students
Avg. class size: 12 students
Sports: 5 | Extracurriculars: 11
Jewish
5017 90th Avenue SE
Mercer Island, WA 98040
(206) 232-5272
(8)
View Profile
St. Monica Catholic School Photo
St. Monica Catholic School
Gr: NS-12 | 262 students
Avg. class size: 21 students
Sports: 4 | Extracurriculars: 17
Catholic
4320 87th Avenue SE
Mercer Island, WA 98040
(206) 232-5432
(6)
View Profile
Map of Creative Learning Center Llc
Creative Learning Center Llc
Gr: PK-K | 59 students
Montessori School
2760 73rd Ave Se
Mercer Island, WA 98040
(206) 232-8900
View Profile
Map of Early World Montessori
Early World Montessori
Gr: PK-K | 73 students
Montessori School
3027 80th Ave Se
Mercer Island, WA 98040
(206) 232-2400
View Profile
Map of Privett Academy
Privett Academy
Gr: 9-12 | 7 students
9311 SE 36th St
Mercer Island, WA 98040
(206) 232-0059
View Profile
[+] Show Closed Private Schools in Mercer Island, Washington

Mercer Island, Washington Private Schools (Closed)

Map of American Academy
American Academy
Gr: 1-12 | 25 students
Christian
7834 Se 32nd St
Mercer Island, WA 98040
(206) 230-5672
View Profile

Mercer Island, WA Private School Trends

6
Private Schools
939
Students
$27,725
Avg. Tuition
17
Avg. Class Size
27%
Students of Color
7:1
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 (Mercer Island)
This State (WA)
# Schools
6 Schools
788 Schools
# Students
939 Students
118,671 Students
% Students of Color
27%
32%
0.72
0.64
Show more data/charts: racial breakdown
# American Indian Students
3 Students
1,226 Students
% American Indian Students
<1%
1%
# Asian Students
47 Students
9,040 Students
% Asian Students
5%
8%
# Hispanic Students
297 Students
6,302 Students
% Hispanic Students
30%
5%
# Black Students
22 Students
3,815 Students
% Black Students
2%
3%
# White Students
340 Students
59,127 Students
% White Students
35%
50%
# Hawaiian Students
0 Students
651 Students
% Hawaiian Students
0%
1%
# Others Students
273 Students
37,063 Students
% of Others Students
28%
32%
All Ethnic Groups
Academics
# Teachers
64 Teachers
10,028 Teachers
Average Student-Teacher Ratio
7:1
12:1
% Average Faculty w/Advanced Degree
90%
59%
Average Class Size
17 students
15 students
Average Number of AP Courses
6 courses
11 courses
Average SAT score
1380
(Out of 1600)
1274
Average ACT score
29
(Out of 36)
29
Tuition & Aid
Average Yearly Tuition Cost
$27,725
$15,197
Average % on Financial Aid
41%
28%
Average Financial Aid Grant
$15,900
$9,020
Average Endowment Size
$2 million
$13.76 million
Admissions & Athletics
Average Acceptance Rate
60%
85%
Average Number of Extracurriculars
14 extracurriculars
8 extracurriculars
Average Number of Sports
5 sports
6 sports

Frequently Asked Questions

What are the top ranked private schools in Mercer Island, WA?
The top ranked private schools in Mercer Island, WA include French American School of Puget Sound, Northwest Yeshiva High School, and St. Monica Catholic School.
How many private schools are located in Mercer Island?
6 private schools are located in Mercer Island.
How diverse are private schools in Mercer Island?
Mercer Island private schools are approximately 27% minority students, which is lower than the Washington private school average of 32%.
What percentage of students in Mercer Island go to private school?
19% of all K-12 students in Mercer Island are educated in private schools (compared to the WA state average of 10%).
What percentage of private schools are religiously affiliated in Mercer Island?
33% of private schools in Mercer Island are religiously affiliated (most commonly Jewish and Catholic).

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