Private School Review - Established 2003
The Prairie School Top 9 · Highest Avg. ACT Score (WI)
Northwest Lutheran School
Catholic Central High School Top 9 · Highest Avg. ACT Score (WI)

Best Wisconsin Private Schools Belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) (2026-27)

For the 2026-27 school year, there are 16 private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) serving 4,459 students in Wisconsin. You can also find more schools membership associations in Wisconsin.
The top ranked private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Wisconsin include Catholic Central High School, St. Martini Lutheran School, and Conserve School.
The average tuition cost is $10,977, which is higher than the Wisconsin private school average tuition cost of $7,434.
81% of private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Wisconsin are religiously affiliated (most commonly Lutheran Church Missouri Synod and Catholic).

Quick Facts (2026-27)

  • # Private Schools: 16

Quick Facts (2026-27)

  • # Private Schools: 16

Top Ranked Private Schools Belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Wisconsin (2026-27)

The Prairie School Photo
The Prairie School
Gr: PK-12 | 638 students
Avg. class size: 16 students
Sports: 10 | Extracurriculars: 36
4050 Lighthouse Drive
Racine, WI 53402
(262) 752-2500
(3)
View Profile
Catholic Central High School Photo
Catholic Central High School
Gr: 9-12 | 129 students
Avg. class size: 8 students
Sports: 17 | Extracurriculars: 16
Catholic
148 Mchenry St
Burlington, WI 53105
(262) 763-1510
(3)
View Profile
Conserve School Photo
Conserve School
Gr: 10-11 | 64 students
Avg. class size: 15 students
Extracurriculars: 3
5400 N Black Oak Lake Road
Land O Lakes, WI 54540
(715) 547-1300
(8)
View Profile
Granville Lutheran School Photo
Granville Lutheran School
Gr: PK-8 | 243 students
Avg. class size: 22 students
Sports: 7 | Extracurriculars: 2
Lutheran Church Missouri Synod
8242 N Granville Rd
Milwaukee, WI 53224
(414) 354-5126
(7)
View Profile
Map of Institute Of Technology And Academics
Institute Of Technology And Academics
Gr: PK-8 | 269 students
8940 N 85th St
Milwaukee, WI 53224
(414) 365-9375
View Profile
Lourdes Academy Photo
Lourdes Academy
Gr: PK-12 | 695 students
Avg. class size: 18 students
Sports: 16 | Extracurriculars: 22
Catholic
110 North Sawyer Street
Oshkosh, WI 54902
(920) 426-6421
View Profile
Map of Messmer High School
Messmer High School
Gr: 9-12 | 525 students
Avg. class size: 22 students
Sports: 9 | Extracurriculars: 12
Catholic
742 W Capitol Drive
Milwaukee, WI 53206
(414) 264-5440
View Profile
Northwest Lutheran School Photo
Northwest Lutheran School
Gr: PK-8 | 252 students
Avg. class size: 22 students
Sports: 3
Lutheran Church Missouri Synod
4119 N 81st St
Milwaukee, WI 53222
(414) 354-5126
(5)
View Profile
Renaissance School Photo
Renaissance School
Gr: PK-8 | 369 students
Avg. class size: 22 students
Sports: 3
Lutheran Church Missouri Synod
1510 Villa Street
Racine, WI 53403
(414) 354-5126
(4)
View Profile
St. Martini Lutheran School Photo
St. Martini Lutheran School
Gr: PK-8 | 261 students
Avg. class size: 22 students
Sports: 2
Lutheran Church Missouri Synod
1520 South Cesar E. Chavez Drive
Milwaukee, WI 53204
(414) 383-7058
(1)
View Profile
Xavier High School Photo
Xavier High School
Gr: 9-12 | 479 students
Avg. class size: 21 students
Sports: 16 | Extracurriculars: 42
Catholic
1600 W. Prospect Avenue
Appleton, WI 54914
(920) 733-6632
(1)
View Profile
Map of Northeastern Wisconsin Lutheran High School
Northeastern Wisconsin Lutheran High School
Gr: 9-12 | 136 students
Avg. class size: 17 students
Sports: 16 | Extracurriculars: 19
Lutheran Church Missouri Synod
1311 S Robinson Ave
Green Bay, WI 54311
(920) 469-6810
(1)
View Profile
Pilgrim Lutheran School Photo
Pilgrim Lutheran School
Gr: PK-8 | 215 students
Avg. class size: 22 students
Sports: 2
Lutheran Church Missouri Synod
6717 W. Center St.
Milwaukee, WI 53210
(414) 559-2422
(3)
View Profile
St. John's Lutheran School Photo
St. John's Lutheran School
Gr: PK-5 | 70 students
Avg. class size: 10 students
Sports: 1
Lutheran Church Missouri Synod
1000 Bluff Street
Beloit, WI 53511
(608) 713-1400
View Profile
Map of Stevens Point Christian Academy
Stevens Point Christian Academy
Gr: K-12 | 78 students
Avg. class size: 10 students
Sports: 3 | Extracurriculars: 1
Christian
801 County Road HH W
Stevens Point, WI 54481
(715) 341-0588
(1)
View Profile
Map of Torah Academy Of Milwaukee
Torah Academy Of Milwaukee
Gr: 9-12 | 36 students
Avg. class size: 13 students
All-girls (Jewish)
6800 N Green Bay Avenue
Milwaukee, WI 53209
(414) 352-6789
(1)
View Profile

Frequently Asked Questions

What are the top ranked private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Wisconsin?
The top ranked private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Wisconsin include Catholic Central High School, St. Martini Lutheran School, and Conserve School.
How many private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) are located in Wisconsin?
16 private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) are located in Wisconsin.
How much do private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) cost in Wisconsin?
The average tuition cost is $10,977, which is higher than the Wisconsin private school average tuition cost of $7,434.
How diverse are private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Wisconsin?
Wisconsin private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) are approximately 54% minority students, which is higher than the Wisconsin private school average of 35%.
What percentage of private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) are religiously affiliated in Wisconsin?
81% of private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Wisconsin are religiously affiliated (most commonly Lutheran Church Missouri Synod and Catholic).
16
Private Schools
4,459
Students
$10,977
Avg. Tuition
54%
Students of Color
12:1
Student-Teacher Ratio

Recent Articles

How Much Homework Is Too Much?
How Much Homework Is Too Much?
Learn how to compare private school homework expectations, recognize excessive workloads, evaluate assignment quality, and ask better questions about academic balance before choosing a school for your child.
Learning Support Without a Formal Program
Learning Support Without a Formal Program
Learn what private schools mean by informal learning support, how services differ from formal programs, and which questions families should ask before choosing the right school today.
Beyond AP vs. IB: How to Judge Academic Rigor
Beyond AP vs. IB: How to Judge Academic Rigor
Learn how to judge academic rigor at private schools without AP or IB by examining curriculum depth, assessments, faculty expectations, advanced coursework, student work, and college preparation outcomes.

Quick Links

SCHOOL SEARCH TOOLS:
SCHOOL BY TYPE (WI):
OPEN-HOUSES & JOBS:
PUBLIC & BOARDING SCHOOLS:
PRIVATE SCHOOL DATA:

Most Popular Articles

What's In A Grade?
What's In A Grade?
 Is Paying More Worth It? Mid-Tuition vs. Premium Private Schools
Is Paying More Worth It? Mid-Tuition vs. Premium Private Schools
Wisconsin Private Schools By Tuition Cost
Wisconsin Private Schools By Tuition Cost

More Articles

Strategic School Choices
Expert School Views
Timeless School Insights
Global Educator Empowerment
Well-Rounded Achievements