MICDS (Mary Institute and St. Louis Country Day School) Photo - Our Pre-K through 12th grade school offers numerous unique educational opportunities, resources, and a strong sense of community that only a Pre-K - 12th grade school can provide.

Best Missouri Nonsectarian Private High Schools (2025)

For the 2025 school year, there are 51 nonsectarian private high schools in Missouri. You can also find more religiously affiliated schools in Missouri.
The top ranked nonsectarian private high schools in Missouri include Barstow School, John Burroughs School, and MICDS (Mary Institute and St. Louis Country Day School).

Top Ranked Nonsectarian Private High Schools in Missouri (2025)

School
Location
Quick Facts
Apprende Private School
Apprende Private School Photo - Apprende Private School "the learning advantage since 1981"
(3)
436B Valley School Drive
Valley Park, MO 63088
(636) 225-5485
Gr: PK-12 | 17 students Tuition listed
Barstow School
(1)
11511 State Line Rd
Kansas City, MO 64114
(816) 942-4054
Gr: NS-12 | 614 students Avg. class size: 15 students Tuition & acceptance rate listed
Cedar Falls School
Alternative School
(3)
19481 State Highway B
Canton, MO 63435
(573) 406-2505
Gr: 10 | 4 students
Clay-Platte Montessori School
Clay-Platte Montessori School Photo
Montessori School
5901 NW Waukomis Drive
Kansas City, MO 64151
(816) 741-6940
Gr: NS-12 | 129 students Avg. class size: 20 students Extracurrculars: 9 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
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
Ech School At Every Childs Hope
Alternative School
8240 Saint Charles Rock Rd
Saint Louis, MO 63114
(314) 593-2999
Gr: 2-12 | 46 students Avg. class size: 10 students
EYC Academy
EYC Academy Photo
Alternative School
13718 Olive Blvd.
Chesterfield, MO 63017
(636) 220-3344
Gr: 6-12 | 39 students Avg. class size: 10 students Extracurrculars: 3 Tuition listed
Greenways Academy
Greenways Academy Photo - Welcome to our "quirky" little school We celebrate all learnersEducate, Motivate, Graduate
7253 Watson Rd PMB #2067
Saint Louis, MO 63119
(314) 432-7534
Gr: 1-12 | 712 students Avg. class size: 15 students Tuition listed
Greenwood Laboratory School
(3)
Missouri State University, 901 S. National
Springfield, MO 65897
(417) 836-5124
Gr: K-12 | 399 students Avg. class size: 22 students Sports: 9 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
101 N Warson Rd
Saint Louis, MO 63124
(314) 995-7448
Gr: PK-12 | 1,241 student Avg. class size: 16 students Sports: 20 Tuition listed
101 N Warson Rd
Saint Louis, MO 63124
(314) 995-7402
Gr: K-12 | 1,265 student
Marygrove Services, Inc.
Special Education School
2705 Mullanphy Ln
Florissant, MO 63031
(314) 830-6203
Gr: 5-11 | 2 students
101 North Warson Road
Saint Louis, MO 63124
(314) 995-7367
Gr: PK-12 | 1,253 student Avg. class size: 16 students Sports: 20 | Extracurrculars: 2 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
Missouri Military Academy
Missouri Military Academy Photo - Missouri Military Academy develops cadets who are of sound moral character, who have self-disciplined to strive for and achieve their goals and who are academically prepared to attend college.
All-boys
(1)
204 N Grand St
Mexico, MO 65265
(573) 581-1776
Gr: 7-12 | 193 students Avg. class size: 14 students Sports: 15 | Extracurrculars: 25 Tuition & acceptance rate listed
136 Clark Hall
Columbia, MO 65211
(573) 884-9173
Gr: 6-12 | 6,961 students
Nova Center
Special Education School
2425 S Hardy Ave
Independence, MO 64052
(816) 924-1703
Gr: 2-12 | 39 students Tuition & acceptance rate 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
The Plaza Academy
The Plaza Academy Photo - We are a family here at Plaza Academy!
3930 Broadway Blvd
Kansas City, MO 64111
(816) 561-0770
Gr: 8-12 | 58 students Avg. class size: 8 students Extracurrculars: 8 Tuition listed
3401 Newman Rd
Joplin, MO 64801
(417) 781-5124
Gr: PK-12 | 316 students Avg. class size: 15 students Sports: 8 | Extracurrculars: 13 Tuition & acceptance rate 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
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 & acceptance rate listed
Acellus Academy
11020 N Ambassador Dr Ste 120
Kansas City, MO 64153
(816) 235-3800
Gr: K-12 | 190 students
Artstech
Alternative School
1522 Holmes St
Kansas City, MO 64108
(816) 461-0201
Gr: 9-12 | 68 students
Calo (Change Academy At Lake Of The Ozarks)
Alternative School
130 Calo Ln
Lake Ozark, MO 65049
(573) 365-2221
Gr: 3-12 | 125 students Extracurrculars: 3
Childrens Center For The Visually Impaired
Special Education School
3101 Main Street
Kansas City, MO 64111
(816) 841-2284
Gr: NS-12 | 270 students Avg. class size: 10 students Tuition listed
Cornerstone With Care - Ozanam School
Special Education School
421 E 137th St
Kansas City, MO 64145
(816) 508-3661
Gr: 6-12 | 51 students
Emerson Academy Therapeutic School
Special Education School
4245 Kennerly Ave
Saint Louis, MO 63113
(314) 531-1907
Gr: 1-12 | 52 students
Family Christian Academy
(1)
11625 E 15th St
Independence, MO 64052
(816) 836-1075
Gr: 2-12 | 46 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
Gr: NS-12 | 127 students Avg. class size: 10 students Sports: 4 | Extracurrculars: 3 Tuition & acceptance rate listed
Giant Steps Of St. Louis
Giant Steps Of St. Louis Photo
Special Education School
7281 Sarah St
Saint Louis, MO 63143
(314) 932-1051
Gr: PK-11 | 25 students Avg. class size: 3 students
Gillis Center School
Special Education School
8150 Wornall Rd
Kansas City, MO 64114
(816) 508-3226
Gr: K-12 | 45 students Avg. class size: 12 students
Show 16 more private schools in Missouri (out of 51 total schools)
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