St. Augustine School Photo - Located in the rural Kettle Moraine area of South Eastern Wisconsin, not far from Holy Hill (National Shrine of the Blessed Virgin Mary).

Best Washington County Private High Schools (2026)

For the 2026 school year, there are 3 private high schools serving 942 students in Washington County, WI.
The top-ranked private high schools in Washington County, WI include Living Word Lutheran High School, St. Augustine School, and Kettle Moraine Lutheran High School.
The average acceptance rate is 99%, which is higher than the Wisconsin private high school average acceptance rate of 84%.
100% of private high schools in Washington County, WI are religiously affiliated (most commonly Wisconsin Evangelical Lutheran Synod and Lutheran Church Missouri Synod).

Top-Ranked Washington County Private High Schools (2026)

School
Location
Quick Facts
Kettle Moraine Lutheran High School
Kettle Moraine Lutheran High School Photo
(Wisconsin Evangelical Lutheran Synod)
(1)
3399 Division Road
Jackson, WI 53037
(262) 677-4051
Gr: 9-12 | 534 students Avg. class size: 16 students Sports: 10 | Extracurrculars: 18 Tuition & acceptance rate listed
Living Word Lutheran High School
Living Word Lutheran High School Photo - Small class sizes with caring teachers.
(Lutheran Church Missouri Synod)
(1)
2230 Living Word Lane
Jackson, WI 53037
(262) 677-9353
Gr: 9-12 | 317 students Avg. class size: 20 students Sports: 11 | Extracurrculars: 13 Tuition & acceptance rate listed
St. Augustine School
St. Augustine School Photo - Located in the rural Kettle Moraine area of South Eastern Wisconsin, not far from Holy Hill (National Shrine of the Blessed Virgin Mary).
(Catholic)
4908 Monches Rd.
Colgate, WI 53017
(262) 628-9838
Gr: PK-12 | 91 students Avg. class size: 10 students Sports: 2 | Extracurrculars: 5 Tuition & acceptance rate listed

Overview

This County (Washington County)
This State (WI)
# Schools
3 Schools

Student Body:

# Students
942 Students
52,538 Students
% Average Students of Color
10%
40%

Academics and Faculty:

# Teachers
72 Teachers
4,474 Teachers
Average Student-Teacher Ratio
13:1
12:1
% Average Faculty w/Advanced Degree
64%
50%
Average Class Size
15 students
15 students
Average Number of AP Courses
6 courses
12 courses
Average SAT score
1150
(Out of 1600)
1231
Average ACT score
24
(Out of 36)
24

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$7,667
$11,638
Average % on Financial Aid
30%
44%
Average Financial Aid Grant
$1,750
$3,573
Average Acceptance Rate
99%
84%

Students by Ethnicity:

0.36
0.67
# American Indian Students
n/a
208 Students
% American Indian Students
n/a
n/a
# Asian Students
19 Students
2,096 Students
% Asian Students
2%
4%
# Hispanic Students
29 Students
8,856 Students
% Hispanic Students
3%
16%
# Black Students
33 Students
7,894 Students
% Black Students
4%
15%
# White Students
748 Students
28,512 Students
% White Students
79%
52%
# Hawaiian Students
1 Student
64 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
112 Students
6,849 Students
% of Others Students
12%
13%
All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars
12 extracurriculars
13 extracurriculars
Average Number of Sports
8 sports
10 sports

Frequently Asked Questions

What are the top-ranked private high schools in Washington County, WI?
The top-ranked private high schools in Washington County, WI include Living Word Lutheran High School, St. Augustine School, and Kettle Moraine Lutheran High School.
How many private high schools are located in Washington County?
3 private high schools are located in Washington County.
What percentage of private high schools are religiously affiliated in Washington County?
100% of private high schools in Washington County are religiously affiliated (most commonly Wisconsin Evangelical Lutheran Synod and Lutheran Church Missouri Synod).
Which private high schools in Washington County are often viewed compared to one another?

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