Private School Review - Established 2003
Academy Of Saint Louis
Lutheran High School Of Kansas City Top 16 · Highest Avg. ACT Score (MO)
The Plaza Academy Top 25 · Highest % Faculty w/ Adv. Degrees (MO)

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

For the 2026-27 school year, there are 38 private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) serving 11,368 students in Missouri. You can also find more schools membership associations in Missouri.
The top ranked private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Missouri include Kirk Day School, First Baptist Christian Academy, and Christian Brothers College High School.
The average tuition cost is $15,225, which is higher than the Missouri private school average tuition cost of $12,905.
84% of private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Missouri are religiously affiliated (most commonly Christian and Catholic).

Quick Facts (2026-27)

  • # Private Schools: 38

Quick Facts (2026-27)

  • # Private Schools: 38

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

Academy Of Saint Louis Photo
Academy Of Saint Louis
Gr: K-12 | 34 students
Avg. class size: 6 students
Extracurriculars: 2
Special Education School (Catholic)
505 St. Joseph Lane
Ballwin, MO 63021
(636) 534-5099
(3)
View Profile
Map of Al-salam Day School
Al-salam Day School
Gr: PK-12 | 333 students
Sports: 1
Islamic
519 Weidman Rd
Ballwin, MO 63011
(636) 394-8986
View Profile
Asa Christian Academy Photo
Asa Christian Academy
Gr: PK-K | 95 students
Avg. class size: 17 students
Daycare / Preschool (Christian)
8390 Latty Ave
Hazelwood, MO 63042
(314) 524-4272
(2)
View Profile
Central Christian School Photo
Central Christian School
Gr: NS-6
Avg. class size: 13 students
Sports: 4 | Extracurriculars: 4
Presbyterian
700 S Hanley Rd
Saint Louis, MO 63105
(314) 727-4535
(1)
View Profile
Christian Brothers College High School Photo
Christian Brothers College High School
Gr: 9-12 | 849 students
Avg. class size: 18 students
Sports: 19
All-boys (Catholic)
1850 De La Salle Dr
Saint Louis, MO 63141
(314) 985-6095
View Profile
Christian Fellowship School Photo
Christian Fellowship School
Gr: PK-12 | 478 students
Avg. class size: 20 students
Sports: 8 | Extracurriculars: 10
Christian
4600 Christian Fellowship Rd
Columbia, MO 65203
(573) 445-8565
(7)
View Profile
EYC Academy Photo
EYC Academy
Gr: 6-12 | 180 students
Avg. class size: 10 students
Extracurriculars: 5
Alternative School
13718 Olive Blvd
Chesterfield, MO 63017
(636) 220-3344
View Profile
Map of First Baptist Christian Academy
First Baptist Christian Academy
Gr: PK-6 | 277 students
Avg. class size: 13 students
Baptist
8750 Veterans Memorial Pkwy
O Fallon, MO 63366
(636) 272-3220
(2)
View Profile
Kirk Day School Photo
Kirk Day School
Gr: NS-6 | 326 students
Avg. class size: 16 students
Sports: 6 | Extracurriculars: 13
Christian
12928 Ladue Rd
Saint Louis, MO 63141
(314) 434-4349
(2)
View Profile
Lutheran High School North Photo
Lutheran High School North
Gr: 6-12 | 279 students
Avg. class size: 18 students
Sports: 13 | Extracurriculars: 14
Lutheran Church Missouri Synod
5401 Lucas And Hunt Rd
Saint Louis, MO 63121
(314) 389-3100
View Profile
Lutheran High School South Photo
Lutheran High School South
Gr: 9-12 | 391 students
Avg. class size: 21 students
Sports: 15 | Extracurriculars: 25
Lutheran Church Missouri Synod
9515 Tesson Ferry Road
Saint Louis, MO 63123
(314) 631-1400
View Profile
Missouri Military Academy Photo
Missouri Military Academy
Gr: 7-12 | 193 students
Avg. class size: 14 students
Sports: 15 | Extracurriculars: 25
All-boys
204 N Grand St
Mexico, MO 65265
(573) 581-1776
(1)
View Profile
New Heights Christian Academy Photo
New Heights Christian Academy
Gr: NS-12 | 594 students
Avg. class size: 22 students
Sports: 11 | Extracurriculars: 9
Christian
4311 Newman Rd
Joplin, MO 64801
(417) 782-4114
(2)
View Profile
Northland Christian Education System Photo
Northland Christian Education System
Gr: PK-12 | 573 students
Avg. class size: 24 students
Sports: 11 | Extracurriculars: 12
Christian
10500 N. Trailblazer Drive
Kansas City, MO 64155
(816) 548-2222
(2)
View Profile
Notre Dame De Sion Grade School Photo
Notre Dame De Sion Grade School
Gr: PK-8 | 310 students
Avg. class size: 15 students
Sports: 4 | Extracurriculars: 6
Catholic
3823 Locust Street
Kansas City, MO 64109
(816) 683-7063
(2)
View Profile
The Plaza Academy Photo
The Plaza Academy
Gr: 8-12 | 56 students
Avg. class size: 8 students
Extracurriculars: 8
Alternative School
3930 Broadway Blvd
Kansas City, MO 64111
(816) 561-0770
View Profile
Rockhurst High School Photo
Rockhurst High School
Gr: 9-12 | 938 students
Avg. class size: 22 students
Sports: 14 | Extracurriculars: 22
All-boys (Catholic)
9301 State Line Rd
Kansas City, MO 64114
(816) 363-2036
View Profile
St. Pius X High School Photo
St. Pius X High School
Gr: 9-12 | 298 students
Avg. class size: 14 students
Sports: 14 | Extracurriculars: 2
Catholic
1030 St Pius Drive
Festus, MO 63028
(636) 931-7487
(1)
View Profile
Summit Christian Academy Photo
Summit Christian Academy
Gr: NS-12 | 1,337 students
Avg. class size: 18 students
Sports: 14 | Extracurriculars: 27
Christian
1500 SW Jefferson
Lees Summit, MO 64081
(816) 525-1480
(3)
View Profile
The Summit Preparatory School Photo
The Summit Preparatory School
Gr: PK-12 | 205 students
Avg. class size: 15 students
Sports: 6 | Extracurriculars: 23
Alternative School
202 E. Walnut Lawn St.
Springfield, MO 65807
(417) 869-8077
(2)
View Profile
Show 3 more private schools in Missouri (out of 38 total schools)
Loading...

Frequently Asked Questions

What are the top ranked private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Missouri?
The top ranked private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Missouri include Kirk Day School, First Baptist Christian Academy, and Christian Brothers College High School.
How many private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) are located in Missouri?
38 private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) are located in Missouri.
How much do private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) cost in Missouri?
The average tuition cost is $15,225, which is higher than the Missouri private school average tuition cost of $12,905.
How diverse are private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Missouri?
Missouri private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) are approximately 26% minority students, which is higher than the Missouri private school average of 21%.
What percentage of private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) are religiously affiliated in Missouri?
84% of private schools belonging to Cognia (formerly AdvancED / SACS CASI / NCA CASI) (Cognia) in Missouri are religiously affiliated (most commonly Christian and Catholic).
38
Private Schools
11,368
Students
$15,225
Avg. Tuition
26%
Students of Color
10:1
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 (MO):
OPEN-HOUSES & JOBS:
PUBLIC & BOARDING SCHOOLS:
PRIVATE SCHOOL DATA:

Most Popular Articles

A Parent’s Guide to Private School Entrance Exams
A Parent’s Guide to Private School Entrance Exams
 School Rankings by Category
School Rankings by Category
Is Paying More Worth It? Mid-Tuition vs. Premium Private Schools
Is Paying More Worth It? Mid-Tuition vs. Premium Private Schools

More Articles

Well-Rounded Achievements
Programs for Exceptional Learners
Expert School Views
Funding the Future
The Journey to Enrollment