MICDS (Mary Institute and St. Louis Country Day School) Photo - State-of-the-art STEM teaching facilities, McDonnell Hall and Brauer Hall

Top 10 Best Missouri Private High Schools Belonging to National Association of Independent Schools (NAIS) (2025)

For the 2025 school year, there are 22 private high schools belonging to National Association of Independent Schools (NAIS) serving 11,429 students in Missouri. You can also find more schools membership associations in Missouri.
The top ranked private high schools belonging to National Association of Independent Schools (NAIS) in Missouri include Chaminade College Prep School, John Burroughs School, and MICDS (Mary Institute and St. Louis Country Day School).
The average tuition cost is $26,004, which is higher than the Missouri private high school average tuition cost of $15,071.
41% of private high schools belonging to National Association of Independent Schools (NAIS) in Missouri are religiously affiliated (most commonly Catholic and Christian).

Top Ranked Private High Schools Belonging to National Association of Independent Schools (NAIS) in Missouri (2025)

School
Location
Grades
Students
Principia School
Principia School Photo
13201 Clayton Rd
Saint Louis, MO 63131
(314) 434-2100
Grades: PK-12
| 477 students
The Barstow School
Special Program Emphasis (Catholic)
(1)
11511 State Line
Kansas City, MO 64114
(816) 277-0365
Grades: K-12
| 861 students
Chaminade College Prep School
Chaminade College Prep School Photo - 2015 Senior House Captains
All-boys (Catholic)
425 S. Lindbergh Blvd
Saint Louis, MO 63131
(314) 993-4400
Grades: 6-12
| 815 students
Columbia Independent School
Columbia Independent School Photo - Columbia Independent School is a JK-12th grade college preparatory school with enrollment of almost 400 students. We look forward to having your child become a CIS Lion!
(3)
1801 N Stadium Blvd
Columbia, MO 65202
(573) 777-9250
Grades: PK-12
| 400 students
500 DeBaliviere Avenue
Saint Louis, MO 63112
(314) 367-8085
Grades: 7-12
| 147 students
John Burroughs School
John Burroughs School Photo - In a rigorous curriculum, students learn creative problem solving, critical thinking, data-driven decision making and collaboration skills that will prepare them for active participation in a world with new challenges.
755 S Price Road
Saint Louis, MO 63124
(314) 993-4040
Grades: 7-12
| 660 students
101 N Warson Rd
Saint Louis, MO 63124
(314) 995-7448
Grades: PK-12
| 1,241 students
101 North Warson Road
Saint Louis, MO 63124
(314) 995-7367
Grades: PK-12
| 1,253 students
Miriam School and Learning Center
Special Education School
1138 N. Warson Road
Saint Louis, MO 63132
(314) 962-6059
Grades: K-12
| 161 students
Oakhill Day School
Oakhill Day School Photo
7019 North Cherry Street
Kansas City, MO 64118
(816) 436-6228
Grades: PK-12
| 429 students
Pembroke Hill School
Pembroke Hill School Photo
400 W 51st St
Kansas City, MO 64112
(816) 936-1200
Grades: NS-12
| 1,181 students
Rockhurst High School
Rockhurst High School Photo
All-boys (Catholic)
9301 State Line Rd
Kansas City, MO 64114
(816) 363-2036
Grades: 9-12
| 938 students
St. Joseph Christian School
St. Joseph Christian School Photo - Champion Academic Teams
(Christian)
5401 Gene Field Road
Saint Joseph, MO 64506
(816) 279-1555
Grades: PK-12
| 434 students
St. Louis Priory School
All-boys (Catholic)
500 S Mason Rd
Saint Louis, MO 63141
(314) 434-3690
Grades: 7-12
| 331 students
The Summit Preparatory School
The Summit Preparatory School Photo
Alternative School
(2)
202 E. Walnut Lawn St.
Springfield, MO 65807
(417) 869-8077
Grades: PK-12
| 171 students
Thomas Jefferson School
Thomas Jefferson School Photo
Special Program Emphasis
(1)
4100 S Lindbergh Boulevard
Saint Louis, MO 63127
(314) 843-4151
Grades: 7-12
| 75 students
Villa Duchesne School
Villa Duchesne School Photo - Villa Duchesne Upper School (Girls, grades 7-12)
All-girls (Catholic)
10801 Conway Road
Saint Louis, MO 63131
(314) 432-2021
Grades: PK-12
| 564 students
Visitation Academy Of St. Louis
Visitation Academy Of St. Louis Photo
All-girls (Catholic)
3020 North Ballas Road
Saint Louis, MO 63131
(314) 625-9100
Grades: PK-12
| 619 students
The Whitfield School
The Whitfield School Photo
175 S Mason Rd
Saint Louis, MO 63141
(314) 434-5141
Grades: 6-12
| 404 students
The Fulton School
The Fulton School Photo - Our Montessori classrooms give students a one-of-a-kind, hands-on experience.
Montessori School
(12)
1100 White Road
Chesterfield, MO 63017
(314) 469-6622
Grades: NS-12
| 127 students
Logos School
Special Education School
9137 Old Bonhomme Rd
Saint Louis, MO 63132
(314) 997-7002
Grades: 6-12
| 113 students
Show-me Christian School
Alternative School (Christian)
24302 Mahin Road
La Monte, MO 65337
(660) 347-5982
Grades: 3-12
| 28 students

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