Brookfield Academy Photo - K4 to Graduation Day!

Best Waukesha County Private High Schools (2026)

For the 2026 school year, there are 13 private high schools serving 3,568 students in Waukesha County, WI.
The top-ranked private high schools in Waukesha County, WI include Lake Country Lutheran High School, University Lake School, and Brookfield Academy.
The average acceptance rate is 85%, which is higher than the Wisconsin private high school average acceptance rate of 84%.
64% of private high schools in Waukesha County, WI are religiously affiliated (most commonly Catholic and Baptist).

Top-Ranked Waukesha County Private High Schools (2026)

School
Location
Quick Facts
Brookfield Academy
Brookfield Academy Photo - Students at all levels engage in a broad range of service projects. Here, Middle School students work together to prepare soda can tabs for donation.
(2)
3462 N Brookfield Rd
Brookfield, WI 53045
(262) 783-3200
Gr: PK-12 | 894 students Avg. class size: 14 students Sports: 19 | Extracurrculars: 32 Tuition & acceptance rate listed
Catholic Memorial High School
(Catholic)
601 E College Ave
Waukesha, WI 53186
(262) 542-7101
Gr: 9-12 | 589 students Avg. class size: 14 students Tuition listed
3500 S Glen Park Rd
New Berlin, WI 53151
(262) 432-0333
Gr: PK-12 | 622 students Avg. class size: 20 students Sports: 9 | Extracurrculars: 12 Tuition listed
Lake Country Lutheran High School
Lake Country Lutheran High School Photo
(Lutheran Church Missouri Synod)
401 Campus Drive
Hartland, WI 53029
(262) 367-8600
Gr: 9-12 | 350 students Avg. class size: 20 students Sports: 14 | Extracurrculars: 15 Tuition & acceptance rate listed
Natures Classroom Institute & Montessori School
Natures Classroom Institute & Montessori School Photo - Nature's Classroom Institute and Montessori School students building a new boardwalk.
Montessori School
(4)
W336 S8455 Hwy E
Mukwonago, WI 53149
(262) 363-2815
Gr: PK-12 | 54 students Tuition & acceptance rate listed
St. John's Northwestern Academy
St. John's Northwestern Academy Photo - Our students walking through campus.
Special Program Emphasis (Episcopal)
1101 Genesee Street
Delafield, WI 53018
(262) 646-7199
Gr: 7-12 | 221 students Avg. class size: 12 students Sports: 11 | Extracurrculars: 11 Tuition listed
Trinity Academy
Trinity Academy Photo - An independent, Catholic K3-12 education to empower your student for success. We provide students with an excellent base of knowledge and study skills on which they can build a lifetime of learning. Classrooms are tech free. Parents are respected as the primary educators of their children, and their involvement in the school is welcome.
(Catholic)
W225N3131 Duplainville Rd
Pewaukee, WI 53072
(262) 695-2933
Gr: PK-12 | 30 students Avg. class size: 5 students Sports: 7 | Extracurrculars: 4 Tuition & acceptance rate listed
University Lake School
University Lake School Photo
(3)
4024 Nagawicka Road
Hartland, WI 53029
(262) 263-8011
Gr: NS-12 | 311 students Avg. class size: 15 students Sports: 13 | Extracurrculars: 17 Tuition listed
Falls Baptist Academy
(Baptist)
(1)
N69w12703 Appleton Ave
Menomonee Falls, WI 53051
(262) 251-7051
Gr: K-12 | 69 students
Genesee Lake School
Special Education School
36100 Genesee Lake Rd
Oconomowoc, WI 53066
(262) 569-5510
Gr: 4-12 | 205 students
Mukwonago Baptist Academy
(Baptist)
1610 Honeywell Rd
Mukwonago, WI 53149
(262) 363-1731
Gr: PK-12 | 52 students Avg. class size: 5 students
Richardson School
Special Education School
175 S Barker Rd
Brookfield, WI 53045
(262) 468-0700
Gr: 1-12 | 91 students
Waukesha Christian Academy
(Baptist)
W271s2470 Merrill Hills Rd
Waukesha, WI 53188
(262) 542-7766
Gr: K-12 | 45 students Tuition listed
[+] Show Closed Private Schools in Waukesha County, Wisconsin

Waukesha County Private Schools (Closed)

School
Location
Quick Facts
N84W19049 Menomonee Ave
Menomonee Falls, WI 53051
(262) 251-0328
Gr: PK
Elm Grove Lutheran School (Closed 2024)
(Lutheran Church Missouri Synod)
945 Terrace Drive
Elm Grove, WI 53122
(262) 797-2970
Gr: PK-8 | 102 students Avg. class size: 11 students Tuition listed
Lakewood School (Closed 2020)
All-boys | Special Education School
Waterville Rd
Dousman, WI 53118
(262) 965-2131
Gr: 3-12 | 80 students
1341 W. Wisconsin Ave.
Oconomowoc, WI 53066
(262) 569-9133
Gr: NS-K | 20 students
449 W Wisconsin Avenue
Pewaukee, WI 53072
(262) 691-2120
Gr: NS-8 | 49 students Avg. class size: 5 students Tuition listed
N74w13646 Appleton Ave
Menomonee Falls, WI 53051
(262) 251-4390
Gr: PK-8 | 156 students
830 County Road Nn E
Mukwonago, WI 53149
(262) 363-7615
Gr: NS-9 | 79 students
1305 Davidson Road
Brookfield, WI 53045
(262) 782-0032
Gr: PK-8 | 209 students

Overview

This County (Waukesha County)
This State (WI)
# Schools
14 Schools

Student Body:

# Students
3,568 Students
52,511 Students
% Average Students of Color
18%
40%

Academics and Faculty:

# Teachers
392 Teachers
4,473 Teachers
Average Student-Teacher Ratio
9:1
12:1
% Average Faculty w/Advanced Degree
58%
50%
Average Class Size
13 students
15 students
Average Number of AP Courses
13 courses
12 courses
Average SAT score
1231
(Out of 1600)
1220
Average ACT score
26
(Out of 36)
24

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$18,204
$11,910
Average Summer Program Cost
$400
$2,803
Average % on Financial Aid
40%
44%
Average Financial Aid Grant
$3,000
$3,573
Average Acceptance Rate
85%
84%
Average Endowment Size
$14.5 million
$83.39 million

Students by Ethnicity:

0.51
0.67
# American Indian Students
3 Students
208 Students
% American Indian Students
n/a
n/a
# Asian Students
163 Students
2,096 Students
% Asian Students
5%
4%
# Hispanic Students
146 Students
8,856 Students
% Hispanic Students
4%
16%
# Black Students
122 Students
7,894 Students
% Black Students
4%
15%
# White Students
2,273 Students
28,512 Students
% White Students
67%
52%
# Hawaiian Students
2 Students
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
695 Students
6,822 Students
% of Others Students
20%
13%
All Ethnic Groups

Extracurriculars and Sports:

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

Frequently Asked Questions

What are the top-ranked private high schools in Waukesha County, WI?
The top-ranked private high schools in Waukesha County, WI include Lake Country Lutheran High School, University Lake School, and Brookfield Academy.
How many private high schools are located in Waukesha County?
13 private high schools are located in Waukesha County.
How diverse are private high schools in Waukesha County?
Waukesha County private high schools are approximately 18% minority students, which is lower than the Wisconsin private school average of 40%.
What percentage of private high schools are religiously affiliated in Waukesha County?
64% of private high schools in Waukesha County are religiously affiliated (most commonly Catholic and Baptist).
Which private high schools in Waukesha County are often viewed compared to one another?

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