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Best Washington Private Schools (2026-27)

For the 2026-27 school year, there are 788 private schools serving 119,893 students in Washington, versus 2,552 public schools serving 1,096,693 students (10% of K-12 students attend private schools, vs. national average 10%).
The average private school tuition is $15,588 for elementary schools and $17,619 for high schools (view national tuition averages).
48% of schools are religiously affiliated, with most being Christian or Catholic.

Quick Facts (2026-27)

  • # Private Schools: 788
  • # Students Served: 119,893
  • Average Tuition: $15,804
  • % Students on Financial Aid: 28%
  • Acceptance Rate: 82%
  • Average Class Size: 15 students
  • % Students of Color: 32%
  • View Washington School Trends

Quick Facts (2026-27)

  • # Private Schools: 788
  • # Students Served: 119,893
  • Average Tuition: $15,804
  • % Students on Financial Aid: 28%
  • Acceptance Rate: 82%
  • Average Class Size: 15 students
  • % Students of Color: 32%
  • View Washington School Trends

Top Ranked Washington Private Schools (2026-27)

BASIS Independent School of Bellevue Photo
BASIS Independent School of Bellevue
Gr: K-12 | 331 students
Avg. class size: 20 students
Sports: 8 | Extracurriculars: 30
15749 NE 4th Street
Bellevue, WA 98008
(425) 906-5199
View Profile
BASIS Independent School of Bothell Photo
BASIS Independent School of Bothell
Gr: PK-12 | 228 students
Sports: 3 | Extracurriculars: 23
21540 30th Drive SE
Bothell, WA 98021
(425) 484-1579
View Profile
The Bear Creek School Photo
The Bear Creek School
Gr: NS-12 | 948 students
Avg. class size: 16 students
Sports: 10 | Extracurriculars: 14
Christian
8905 208th Avenue NE
Redmond, WA 98053
(425) 898-1720
(12)
View Profile
Bellevue Christian School โ€“ Clyde Hill Campus Photo
Bellevue Christian School โ€“ Clyde Hill Campus
Gr: 7-12 | 1,037 students
Avg. class size: 17 students
Sports: 8
Christian
1701 98th Ave Ne
Bellevue, WA 98004
(425) 460-3300
(3)
View Profile
Bellevue Christian School โ€“ Three Points Elementary Campus Photo
Bellevue Christian School โ€“ Three Points Elementary Campus
Gr: K-6 | 240 students
7800 Ne 28th St
Medina, WA 98039
(425) 454-4402
View Profile
Brightmont Academy - Sammamish Photo
Brightmont Academy - Sammamish
Gr: 1-12
Avg. class size: 1 student
Specialized Curriculum
4588 Klahanie Dr SE Suite 401
Issaquah, WA 98029
(425) 836-1600
View Profile
Brighton School of Mountlake Terrace Photo
Brighton School of Mountlake Terrace
Gr: PK-8 | 327 students
Avg. class size: 18 students
Sports: 6 | Extracurriculars: 2
21705 58th Avenue West
Mountlake Terrace, WA 98043
(425) 584-2361
(2)
View Profile
Charles Wright Academy Photo
Charles Wright Academy
Gr: PK-12 | 578 students
Avg. class size: 14 students
Sports: 11 | Extracurriculars: 47
7723 Chambers Creek Rd W University Place
University Place, WA 98467
(253) 620-8373
(6)
View Profile
Chestnut Hill Academy Photo
Chestnut Hill Academy
Gr: K-5 | 347 students
Avg. class size: 16 students
Sports: 2 | Extracurriculars: 15
13633 SE 26th St
Bellevue, WA 98005
(425) 372-2800
(10)
View Profile
Discovery Montessori School Photo
Discovery Montessori School
Gr: NS-K | 40 students
Avg. class size: 20 students
Sports: 1 | Extracurriculars: 3
Montessori School
2836 34th Ave West
Seattle, WA 98199
(206) 282-3848
(1)
View Profile
Show 10 more private schools in Washington (out of 787 total schools)
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Washington Private School Trends (10-Year)

788
Private Schools
+1.0% (+8 schools) 10-yr
119,893
Students
+17.9% (+18,225 students) 10-yr
$15,804
Avg. Tuition
+71.6% (+$6,593) 10-yr
15
Avg. Class Size
32%
Students of Color
+14.3% (+4.0 pp) 10-yr
12:1
Student-Teacher Ratio
Enrollment & Diversity
Category
This State (WA)
US
# Schools
788 Schools

Trends in Total Number of Private Schools

Year(WA) Total Schools
2025782
2024791
2023758
2022744
2021758
2020794
2019778
2018792
2017751
2016758
2015780
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# Students
119,893 Students
5,690,765 Students

View Largest Washington Private Schools

Trends in the Average Number of Students Per Private School

YearWashington (WA) AvgNational
2025172179
2024170172
2023163174
2022157185
2021157180
2020151171
2019152175
2018150172
2017151180
2016148178
2015144167
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% Average Students of Color
32%
34%

Percentage of Students of Color Trends (2015-2025)

YearWashington (WA) AvgNational
202531%34%
202429%34%
202332%33%
202229%33%
202128%32%
202027%32%
201927%31%
201826%31%
201730%32%
201629%32%
201528%32%
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Student By Grade

Distribution of Students By Grade Trends

GradeWashington
Nursey3,030
Pre-K18,718
Kind11,188
18,379
27,915
38,048
47,815
57,730
67,918
77,657
87,404
96,302
106,064
115,400
125,225
Not Listed1,100
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Academics
# Teachers
10,039 Teachers
508,570 Teachers
Average Student-Teacher Ratio
12:1
11:1

Student-Teacher Ratio Trends (2015-2025)

YearWashington (WA) AvgNational
202512:111:1
202412:111:1
202312:111:1
202212:111:1
202112:111:1
202012:112:1
201912:112:1
201812:112:1
201712:112:1
201612:112:1
201512:112:1
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% Average Faculty w/Advanced Degree
59%
55%

View Washington Private Schools with the Most Educated Faculty

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

YearWashington (WA) AvgNational
202558%55%
202457%54%
202358%54%
202257%54%
202157%54%
202057%54%
201956%53%
201855%53%
201755%53%
201654%52%
201555%52%
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Average Class Size
15 students
15 students

Class Size Trends (2015-2025)

YearWashington (WA) AvgNational
20251615
20241615
20231615
20221515
20211515
20201515
20191515
20181515
20171515
20161515
20151515
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Average Number of AP Courses
11 courses
13 courses

View Washington Private Schools Offering the Most AP Courses

Trends in Average Number of AP Courses Offered

YearWashington (WA) AvgNational
20251013
2024812
2023911
2022811
2021811
2020811
2019811
2018811
2017810
2016710
2015710
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Average SAT score
1273
(Out of 1600)
1234

View Average Private School SAT Scores in Washington

SAT Score Trends (2017-2025)

YearWashington (WA) AvgNational
202512641233
202412571230
202312281228
202212351229
202112421229
202012331226
201912471226
201812411226
201712551233
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Average ACT score
29
(Out of 36)
26

View Average Private School ACT Scores in Washington

ACT Score Trends (2017-2025)

YearWashington (WA) AvgNational
20252926
20242826
20232726
20222826
20212826
20202825
20192725
20182725
20172725
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Tuition & Aid
Average Yearly Tuition Cost
$15,804
$14,943

View Washington Private Schools By Tuition Cost

Tuition Cost Trends (2015-2025)

YearWashington (WA) AvgNational
2025$15,533$15,012
2024$14,062$13,254
2023$13,102$12,626
2022$12,138$12,187
2021$11,838$11,800
2020$11,300$11,512
2019$10,936$11,293
2018$10,668$11,017
2017$10,030$10,708
2016$9,472$10,356
2015$9,211$9,939
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Average Summer Program Cost
$839
$1,154

Summer Program Cost Trends (2018-2025)

YearWashington (WA) AvgNational
2025$810$1,152
2024$702$1,128
2023$1,305$1,156
2022$757$1,102
2021$728$1,125
2020$774$1,217
2019$788$1,305
2018$490$1,108
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Average % on Financial Aid
28%
35%

Percent on Financial Aid Trends (2015-2025)

YearWashington (WA) AvgNational
202529%34%
202428%34%
202327%34%
202227%33%
202126%33%
202027%32%
201927%31%
201826%30%
201725%30%
201623%29%
201523%28%
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Average Financial Aid Grant
$8,970
$7,261

Financial Aid Grant Trends (2015-2025)

YearWashington (WA) AvgNational
2025$8,921$7,073
2024$8,821$6,930
2023$6,927$6,469
2022$6,141$6,289
2021$6,073$6,055
2020$5,578$5,921
2019$5,841$5,795
2018$5,265$5,456
2017$5,049$5,319
2016$5,147$5,105
2015$4,878$5,030
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Average Acceptance Rate
82%
82%

View Most Selective Private Schools in Washington

Acceptance Rate Trends (2015-2025)

YearWashington (WA) AvgNational
202582%81%
202485%85%
202385%85%
202285%85%
202185%85%
202085%85%
201984%85%
201884%85%
201784%85%
201682%85%
201581%85%
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Average Endowment Size
$25.16 million
$38.23 million

View Average Private School endowment in Washington

Endowment Trends (2020-2025)

YearWashington (WA) AvgNational
2025$25 M$39 M
2024$8 M$39 M
2023$6 M$39 M
2022$7 M$40 M
2021$7 M$40 M
2020$7 M$40 M
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Students by Ethnicity
0.64
0.65

View Washington Private Schools Minority Statistics

Diversity Score Trends

YearWashington (WA) AvgNational
20250.640.65
20240.640.65
20230.640.65
20220.620.64
20210.630.64
20200.630.64
20190.610.63
20180.620.63
20170.610.61
20160.600.61
20150.600.61
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# American Indian Students
1,228 Students
29,815 Students
% American Indian Students
1%
1%

Percentage of Private School Students of American Indian Trends

YearWashington (WA) AvgNational
20251%1%
20241%1%
20231%1%
20221%2%
20211%1%
20202%1%
20192%1%
20182%2%
20172%1%
20162%1%
20152%1%
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# Asian Students
9,040 Students
264,585 Students
% Asian Students
8%
5%

Asian Student Percentage Trends

YearWashington (WA) AvgNational
20258%5%
20248%5%
20238%5%
20227%4%
20217%4%
20207%4%
20196%4%
20186%4%
20176%4%
20166%4%
20156%4%
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# Hispanic Students
6,307 Students
506,702 Students
% Hispanic Students
5%
9%

Hispanic Student Percentage Trends

YearWashington (WA) AvgNational
20255%9%
20245%9%
20235%9%
20225%8%
20215%9%
20205%9%
20195%8%
20185%8%
20175%8%
20165%8%
20155%8%
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# Black Students
3,815 Students
415,632 Students
% Black Students
3%
7%

Black Student Percentage Trends

YearWashington (WA) AvgNational
20253%7%
20243%7%
20233%8%
20223%7%
20213%7%
20203%8%
20193%7%
20183%7%
20173%7%
20163%7%
20153%8%
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# White Students
59,141 Students
2,929,926 Students
% White Students
50%
52%

White Student Percentage Trends

YearWashington (WA) AvgNational
202550%52%
202450%52%
202351%52%
202253%54%
202153%54%
202053%54%
201955%56%
201855%56%
201756%58%
201656%58%
201557%58%
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# Hawaiian Students
651 Students
20,065 Students
% Hawaiian Students
1%
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
38,328 Students
1,473,602 Students
% of Others Students
32%
26%

Other Races Student Percentage Trends

YearWashington (WA) AvgNational
202532%26%
202432%26%
202331%25%
202230%25%
202130%25%
202029%24%
201929%24%
201829%23%
201728%22%
201628%22%
201527%21%
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All Ethnic Groups
Extracurriculars & Sports
Average Number of Extracurriculars
8 extracurriculars
9 extracurriculars
Average Number of Sports
6 sports
7 sports
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Frequently Asked Questions

What are the top ranked private schools in Washington?
The top-ranked private schools in Washington include Charles Wright Academy, Annie Wright Schools, and BASIS Independent School of Bellevue.
How many private schools are located in Washington?
There are 788 private schools are located in Washington.
How much do private schools cost in Washington?
The average private school tuition in Washington is $15,588 for elementary schools and $17,619 for high schools
How diverse are private schools in Washington?
Approximately 32% of students in Washington private schools are minority students (compared to the national percentage).
What percentage of students in Washington go to private school?
10% of all K-12 students in Washington attend private schools (compared to the national average of 10%).
What percentage of private schools are religiously affiliated in Washington?
48% of private schools in Washington are religiously affiliated, with most being Christian or Catholic.
Which private schools in Washington are often viewed compared to one another?

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