Overview

Trends in Total Number of Private Schools

Year	Washington County Total Schools
2025	24
2024	24
2023	24
2022	23
2021	23
2020	25
2019	24
2018	23
2017	24
2016	24
2015	23

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# Students

3,953 Students

147,262 Students

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Showing 2016–2025. Full 11-year historical data available below ↓

Trends in the Average Number of Students Per Private School

Year	Washington County Average	Wisconsin (WI) Average	National Average
2025	172	166	179
2024	168	161	172
2023	168	153	174
2022	166	164	185
2021	164	162	180
2020	149	152	171
2019	146	149	175
2018	152	147	172
2017	160	154	180
2016	159	152	178
2015	163	147	167

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% Average Students of Color

35%

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Percentage of Students of Color Trends (2015-2025)

Year	Washington County Average	Wisconsin (WI) Average	National Average
2025	6%	35%	34%
2024	7%	35%	34%
2023	6%	34%	33%
2022	5%	31%	33%
2021	6%	31%	32%
2020	6%	31%	32%
2019	3%	31%	31%
2018	3%	30%	31%
2017	4%	30%	32%
2016	3%	30%	32%
2015	3%	30%	32%

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Academics and Faculty:

# Teachers

291 Teachers

11,498 Teachers

Average Student-Teacher Ratio

14:1

13:1

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Showing 2016–2025. Full 11-year historical data available below ↓

Student-Teacher Ratio Trends (2015-2025)

Year	Washington County Average	Wisconsin (WI) Average	National Average
2025	14:1	13:1	11:1
2024	13:1	13:1	11:1
2023	14:1	13:1	11:1
2022	13:1	13:1	11:1
2021	13:1	13:1	11:1
2020	13:1	13:1	12:1
2019	13:1	13:1	12:1
2018	13:1	13:1	12:1
2017	14:1	13:1	12:1
2016	14:1	13:1	12:1
2015	14:1	14:1	12:1

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% Average Faculty w/Advanced Degree

40%

38%

View Data

Percentage of Faculty With Advanced Degrees Trends (2017-2025)

Year	Washington County Average	Wisconsin (WI) Average	National Average
2025	40%	39%	55%
2024	42%	39%	54%
2023	42%	38%	54%
2022	42%	38%	54%
2021	41%	37%	54%
2020	47%	37%	54%
2019	44%	36%	53%
2018	49%	36%	53%
2017	49%	36%	53%

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Average Class Size

15 students

16 students

View Data

Class Size Trends (2019-2025)

Year	Washington County Average	Wisconsin (WI) Average	National Average
2025	15	16	15
2024	14	15	15
2023	15	16	15
2022	14	16	15
2021	14	15	15
2020	13	16	15
2019	12	16	15

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Average Number of AP Courses

6 courses

11 courses

Average SAT score

1150

(Out of 1600)

1238

Average ACT score

(Out of 36)

Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$4,424

$5,755

View Data

Tuition Cost Trends (2017-2025)

Year	Washington County Average	Wisconsin (WI) Average	National Average
2025	$7,522	$7,693	$15,012
2024	$7,242	$7,615	$14,622
2023	$7,096	$7,273	$14,057
2022	$6,984	$7,058	$13,504
2021	$6,854	$7,004	$13,232
2020	$6,529	$6,851	$12,915
2019	$6,286	$6,723	$12,656
2018	$6,286	$6,611	$12,363
2017	$6,056	$6,497	$12,049

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Average Summer Program Cost

$525

$1,173

Average % on Financial Aid

27%

37%

Average Financial Aid Grant

$5,440

$2,609

Average Acceptance Rate

100%

92%

View Data

Acceptance Rate Trends (2019-2025)

Year	Washington County Average	Wisconsin (WI) Average	National Average
2025	100%	89%	81%
2024	100%	93%	85%
2023	100%	93%	85%
2022	100%	95%	85%
2021	100%	95%	85%
2020	100%	94%	85%
2019	100%	94%	85%

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Students by Ethnicity:

0.45

0.66

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Diversity Score Trends

Year	Washington County Average	Wisconsin (WI) Average	National Average
2025	0.45	0.66	0.65
2024	0.43	0.66	0.65
2023	0.43	0.65	0.65
2022	0.41	0.63	0.64
2021	0.40	0.63	0.64
2020	0.39	0.63	0.64
2019	0.34	0.61	0.63
2018	0.34	0.60	0.63
2017	0.35	0.56	0.61
2016	0.36	0.57	0.61
2015	0.35	0.57	0.61

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# American Indian Students

3 Students

897 Students

% American Indian Students

<1%

# Asian Students

42 Students

3,565 Students

% Asian Students

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Asian Student Percentage Trends

Year	Washington County Average	Wisconsin (WI) Average	National Average
2025	1%	2%	5%
2024	1%	2%	5%
2023	1%	3%	5%
2022	2%	3%	4%
2021	2%	4%	4%
2020	1%	3%	4%
2019	1%	2%	4%
2018	1%	2%	4%
2017	1%	2%	4%
2016	1%	2%	4%
2015	1%	2%	4%

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# Hispanic Students

62 Students

17,428 Students

% Hispanic Students

12%

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Hispanic Student Percentage Trends

Year	Washington County Average	Wisconsin (WI) Average	National Average
2025	2%	12%	9%
2024	2%	12%	9%
2023	1%	9%	9%
2022	1%	8%	8%
2021	1%	8%	9%
2020	1%	8%	9%
2019	1%	8%	8%
2018	1%	8%	8%
2017	1%	6%	8%
2016	1%	6%	8%
2015	1%	6%	8%

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# Black Students

55 Students

20,225 Students

% Black Students

13%

View Data

Black Student Percentage Trends

Year	Washington County Average	Wisconsin (WI) Average	National Average
2025	1%	13%	7%
2024	1%	14%	7%
2023	2%	15%	8%
2022	1%	13%	7%
2021	1%	13%	7%
2020	1%	14%	8%
2019	1%	12%	7%
2018	1%	12%	7%

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# White Students

2,824 Students

79,460 Students

% White Students

70%

53%

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

White Student Percentage Trends

Year	Washington County Average	Wisconsin (WI) Average	National Average
2025	70%	53%	52%
2024	72%	53%	52%
2023	72%	53%	52%
2022	73%	56%	54%
2021	74%	56%	54%
2020	76%	57%	54%
2019	80%	59%	56%
2018	79%	59%	56%
2017	78%	63%	58%
2016	78%	63%	58%
2015	78%	63%	58%

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# Hawaiian Students

3 Students

294 Students

% Hawaiian Students

<1%

# Others Students

1,035 Students

29,380 Students

% of Others Students

26%

19%

View Data

Showing 2016–2025. Full 11-year historical data available below ↓

Other Races Student Percentage Trends

Year	Washington County Average	Wisconsin (WI) Average	National Average
2025	26%	19%	26%
2024	24%	18%	26%
2023	24%	20%	25%
2022	23%	20%	25%
2021	22%	19%	25%
2020	21%	18%	24%
2019	17%	18%	24%
2018	18%	18%	23%
2017	20%	17%	22%
2016	20%	17%	22%
2015	20%	16%	21%

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

6 extracurriculars

7 extracurriculars

Average Number of Sports

5 sports

6 sports

Frequently Asked Questions

What are the top ranked private schools in Washington County, WI?

The private schools in Washington County, WI include Holy Angels School, Kettle Moraine Lutheran High School, and Peace Lutheran School.

How many private schools are located in Washington County?

24 private schools are located in Washington County.

How much do private schools cost in Washington County?

The average tuition cost is $4,424, which is lower than the Wisconsin private school average tuition cost of $5,755.

How diverse are private schools in Washington County?

Washington County private schools are approximately 6% minority students, which is lower than the Wisconsin private school average of 35%.

What percentage of students in Washington County go to private school?

18% of all K-12 students in Washington County are educated in private schools (compared to the WI state average of 15%).

What percentage of private schools are religiously affiliated in Washington County?

92% of private schools in Washington County are religiously affiliated (most commonly Wisconsin Evangelical Lutheran Synod and Catholic).

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

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