Washington Private School Trends (10-Year)

786

Private Schools

+0.8% (+6 schools) 10-yr

119,894

Students

+17.9% (+18,226 students) 10-yr

$15,804

Avg. Tuition

+71.6% (+$6,593) 10-yr

Avg. Class Size

32%

Students of Color

+14.3% (+4.0 pp) 10-yr

12:1

Student-Teacher Ratio

Enrollment & Diversity

Student By Grade

View Data

Distribution of Students By Grade Trends
Grade	Washington
Nursey	3,030
Pre-K	18,718
Kind	11,188
1	8,379
2	7,915
3	8,048
4	7,815
5	7,730
6	7,918
7	7,655
8	7,404
9	6,301
10	6,064
11	5,402
12	5,227
Not Listed	1,100

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Academics

# Teachers

10,039 Teachers

508,485 Teachers

Average Student-Teacher Ratio

12:1

11:1

View Data

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

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% Average Faculty w/Advanced Degree

59%

55%

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View Data

Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	Washington (WA) Avg	National
2025	58%	55%
2024	57%	54%
2023	58%	54%
2022	57%	54%
2021	57%	54%
2020	57%	54%
2019	56%	53%
2018	55%	53%
2017	55%	53%
2016	54%	52%
2015	55%	52%

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Average Class Size

15 students

View Data

Class Size Trends (2015-2025)
Year	Washington (WA) Avg	National
2025	16	15
2024	16	15
2023	16	15
2022	15	15
2021	15	15
2020	15	15
2019	15	15
2018	15	15
2017	15	15
2016	15	15
2015	15	15

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Average Number of AP Courses

11 courses

13 courses

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View Data

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

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Average SAT score

1273

(Out of 1600)

1234

View Average Private School SAT Scores in Washington

View Data

SAT Score Trends (2015-2025)
Year	Washington (WA) Avg	National
2025	1264	1233
2024	1257	1230
2023	1228	1228
2022	1235	1229
2021	1242	1229
2020	1233	1226
2019	1247	1226
2018	1241	1226
2017	1255	1233
2016	1358	1306
2015	1380	1258

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Average ACT score

(Out of 36)

View Average Private School ACT Scores in Washington

View Data

ACT Score Trends (2015-2025)
Year	Washington (WA) Avg	National
2025	29	26
2024	28	26
2023	27	26
2022	28	26
2021	28	26
2020	28	25
2019	27	25
2018	27	25
2017	27	25
2016	27	25
2015	27	25

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Tuition & Aid

Average Yearly Tuition Cost

$15,804

$14,950

View Washington Private Schools By Tuition Cost

View Data

Tuition Cost Trends (2015-2025)
Year	Washington (WA) Avg	National
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

$1,153

View Data

Summer Program Cost Trends (2018-2025)
Year	Washington (WA) Avg	National
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%

View Data

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

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Average Financial Aid Grant

$8,970

$7,228

View Data

Financial Aid Grant Trends (2015-2025)
Year	Washington (WA) Avg	National
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%

View Most Selective Private Schools in Washington

View Data

Acceptance Rate Trends (2015-2025)
Year	Washington (WA) Avg	National
2025	82%	81%
2024	85%	85%
2023	85%	85%
2022	85%	85%
2021	85%	85%
2020	85%	85%
2019	84%	85%
2018	84%	85%
2017	84%	85%
2016	82%	85%
2015	81%	85%

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Average Endowment Size

$41.82 million

$63.28 million

View Average Private School endowment in Washington

View Data

Endowment Trends (2017-2025)
Year	Washington (WA) Avg	National
2025	$41 M	$60 M
2024	$8 M	$59 M
2023	$6 M	$71 M
2022	$7 M	$76 M
2021	$7 M	$71 M
2020	$7 M	$74 M
2019	$6 M	$78 M
2018	$2 M	$67 M
2017	$3 M	$83 M

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Students by Ethnicity

0.64

0.65

View Washington Private Schools Minority Statistics

View Data

Diversity Score Trends
Year	Washington (WA) Avg	National
2025	0.64	0.65
2024	0.64	0.65
2023	0.64	0.65
2022	0.62	0.64
2021	0.63	0.64
2020	0.63	0.64
2019	0.61	0.63
2018	0.62	0.63
2017	0.61	0.61
2016	0.60	0.61
2015	0.60	0.61

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# American Indian Students

1,228 Students

29,824 Students

% American Indian Students

View Data

Percentage of Private School Students of American Indian Trends
Year	Washington (WA) Avg	National
2025	1%	1%
2024	1%	1%
2023	1%	1%
2022	1%	2%
2021	1%	1%
2020	2%	1%
2019	2%	1%
2018	2%	2%
2017	2%	1%
2016	2%	1%
2015	2%	1%

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# Asian Students

9,040 Students

264,899 Students

% Asian Students

View Data

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

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# Hispanic Students

6,307 Students

506,804 Students

% Hispanic Students

View Data

Hispanic Student Percentage Trends
Year	Washington (WA) Avg	National
2025	5%	9%
2024	5%	9%
2023	5%	9%
2022	5%	8%
2021	5%	9%
2020	5%	9%
2019	5%	8%
2018	5%	8%
2017	5%	8%
2016	5%	8%
2015	5%	8%

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# Black Students

3,815 Students

415,674 Students

% Black Students

View Data

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

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# White Students

59,141 Students

2,930,451 Students

% White Students

50%

52%

View Data

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

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# Hawaiian Students

651 Students

20,066 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

38,328 Students

1,473,461 Students

% of Others Students

32%

26%

View Data

Other Races Student Percentage Trends
Year	Washington (WA) Avg	National
2025	32%	26%
2024	32%	26%
2023	31%	25%
2022	30%	25%
2021	30%	25%
2020	29%	24%
2019	29%	24%
2018	29%	23%
2017	28%	22%
2016	28%	22%
2015	27%	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 BASIS Independent Bellevue, Saint George's School, and Holy Names Academy.

How many private schools are located in Washington?

There are 786 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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Year	Washington (WA) Avg	National
2025	172	179
2024	170	172
2023	163	174
2022	157	185
2021	157	180
2020	151	171
2019	152	175
2018	150	172
2017	151	180
2016	148	178
2015	144	167

Quick Facts (2026)

Quick Facts (2026)

Top Ranked Washington Private Schools (2026)

Washington Private School Trends (10-Year)

Trends in Total Number of Private Schools

Trends in the Average Number of Students Per Private School

Percentage of Students of Color Trends (2015-2025)

Student By Grade

Distribution of Students By Grade Trends

Student-Teacher Ratio Trends (2015-2025)

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

Class Size Trends (2015-2025)

Trends in Average Number of AP Courses Offered

SAT Score Trends (2015-2025)

ACT Score Trends (2015-2025)

Tuition Cost Trends (2015-2025)

Summer Program Cost Trends (2018-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

Endowment Trends (2017-2025)

Diversity Score Trends

Percentage of Private School Students of American Indian Trends

Asian Student Percentage Trends

Hispanic Student Percentage Trends

Black Student Percentage Trends

White Student Percentage Trends

Other Races Student Percentage Trends

Frequently Asked Questions

Recent Articles

Quick Links

Most Popular Articles

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Best Washington Private Schools (2026)

Top Ranked Washington Private Schools (2026)

Washington Private School Trends (10-Year)

Trends in Total Number of Private Schools

Trends in the Average Number of Students Per Private School

Percentage of Students of Color Trends (2015-2025)

Student By Grade

Distribution of Students By Grade Trends

Student-Teacher Ratio Trends (2015-2025)

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

Class Size Trends (2015-2025)

Trends in Average Number of AP Courses Offered

SAT Score Trends (2015-2025)

ACT Score Trends (2015-2025)

Tuition Cost Trends (2015-2025)

Summer Program Cost Trends (2018-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

Endowment Trends (2017-2025)

Diversity Score Trends

Percentage of Private School Students of American Indian Trends

Asian Student Percentage Trends

Hispanic Student Percentage Trends

Black Student Percentage Trends

White Student Percentage Trends

Other Races Student Percentage Trends

Frequently Asked Questions

More Articles