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The Whitfield School

Best Missouri Private High Schools Belonging to National Association of Independent Schools (NAIS) (2025-26)

For the 2025-26 school year, there are 21 private high schools belonging to National Association of Independent Schools (NAIS) serving 10,227 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 $26,374, which is higher than the Missouri private high school average tuition cost of $14,924.
43% 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 (2025-26)

School
Location
Quick Facts
The Barstow School
Special Program Emphasis (Catholic)
(1)
11511 State Line
Kansas City, MO 64114
(816) 277-0365
Gr: K-12 | 861 students Avg. class size: 10 students Sports: 11 Tuition & acceptance rate listed
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
Gr: 6-12 | 851 students Avg. class size: 17 students Sports: 19 | Extracurrculars: 29 Tuition & acceptance rate listed
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
Gr: PK-12 | 400 students Avg. class size: 16 students Sports: 9 | Extracurrculars: 25 Tuition listed
Crossroads College Preparatory School
Crossroads College Preparatory School Photo
500 DeBaliviere Avenue
Saint Louis, MO 63112
(314) 367-8085
Gr: 7-12 | 147 students Avg. class size: 9 students Sports: 7 | Extracurrculars: 5 Tuition listed
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
Gr: 7-12 | 660 students Avg. class size: 13 students Sports: 19 Tuition & acceptance rate listed
MICDS (Mary Institute and St. Louis Country Day School)
MICDS (Mary Institute and St. Louis Country Day School) Photo
(3)
101 North Warson Road
Saint Louis, MO 63124
(314) 995-7367
Gr: PK-12 | 1,236 student Avg. class size: 16 students Sports: 20 | Extracurrculars: 3 Tuition & acceptance rate listed
Miriam School and Learning Center
Special Education School
1138 N. Warson Road
Saint Louis, MO 63132
(314) 962-6059
Gr: K-12 | 161 students Avg. class size: 8 students Sports: 1 | Extracurrculars: 7 Tuition listed
Oakhill Day School
Oakhill Day School Photo
7019 North Cherry Street
Kansas City, MO 64118
(816) 436-6228
Gr: PK-12 | 429 students Avg. class size: 13 students Sports: 4 | Extracurrculars: 9 Tuition & acceptance rate listed
Pembroke Hill School
Pembroke Hill School Photo
400 W 51st St
Kansas City, MO 64112
(816) 936-1200
Gr: NS-12 | 1,181 student Avg. class size: 16 students Sports: 17 | Extracurrculars: 60 Tuition & acceptance rate listed
Principia School
Principia School Photo
13201 Clayton Rd
Saint Louis, MO 63131
(314) 434-2100
Gr: PK-12 | 477 students Avg. class size: 14 students Sports: 14 | Extracurrculars: 13 Tuition listed
Rockhurst High School
Rockhurst High School Photo
All-boys (Catholic)
9301 State Line Rd
Kansas City, MO 64114
(816) 363-2036
Gr: 9-12 | 938 students Avg. class size: 22 students Sports: 14 | Extracurrculars: 22 Tuition & acceptance rate listed
St. Joseph Christian School
St. Joseph Christian School Photo - Champion Academic Teams
(Christian)
5401 Gene Field Road
Saint Joseph, MO 64506
(816) 279-1555
Gr: PK-12 | 434 students Avg. class size: 21 students Sports: 8 | Extracurrculars: 10 Tuition & acceptance rate listed
St. Louis Priory School
All-boys (Catholic)
500 S Mason Rd
Saint Louis, MO 63141
(314) 434-3690
Gr: 7-12 | 331 students Avg. class size: 18 students Tuition listed
The Summit Preparatory School
The Summit Preparatory School Photo
Alternative School
(2)
202 E. Walnut Lawn St.
Springfield, MO 65807
(417) 869-8077
Gr: PK-12 | 171 students Avg. class size: 15 students Sports: 12 | Extracurrculars: 23 Tuition listed
Thomas Jefferson School
Thomas Jefferson School Photo
Special Program Emphasis
(1)
4100 S Lindbergh Boulevard
Saint Louis, MO 63127
(314) 843-4151
Gr: 7-12 | 75 students Avg. class size: 14 students Sports: 4 | Extracurrculars: 34 Tuition & acceptance rate listed
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
Gr: PK-12 | 584 students Avg. class size: 15 students Sports: 11 | Extracurrculars: 30 Tuition & acceptance rate listed
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
Gr: PK-12 | 619 students Avg. class size: 14 students Sports: 12 | Extracurrculars: 32 Tuition listed
The Whitfield School
The Whitfield School Photo
175 S Mason Rd
Saint Louis, MO 63141
(314) 434-5141
Gr: 6-12 | 404 students Avg. class size: 14 students Sports: 17 | Extracurrculars: 30 Tuition listed
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
Gr: NS-12 | 127 students Avg. class size: 10 students Sports: 4 | Extracurrculars: 3 Tuition & acceptance rate listed
Logos School
Special Education School
9137 Old Bonhomme Rd
Saint Louis, MO 63132
(314) 997-7002
Gr: 6-12 | 113 students Tuition & acceptance rate listed
Show-me Christian School
Alternative School (Christian)
24302 Mahin Road
La Monte, MO 65337
(660) 347-5982
Gr: 1-12 | 28 students Avg. class size: 23 students Sports: 3 | Extracurrculars: 1 Tuition listed

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