For the 2025 school year, there are 14 all-boys private high schools serving 6,561 students in Missouri.
The top ranked all-boys private high schools in Missouri include St. Louis University High School, Christian Brothers College High School, and Chaminade College Prep School.
The average tuition cost is $18,672, which is higher than the Missouri private high school average tuition cost of $14,934.
Top Ranked Missouri All-Boys Private High Schools (2025)
School
Location
Grades
Students
Chaminade College Prep School![Chaminade College Prep School Photo - 2015 Senior House Captains Chaminade College Prep School Photo - 2015 Senior House Captains]()

All-boys (Catholic)
425 S. Lindbergh Blvd
Saint Louis, MO 63131
(314) 993-4400
Saint Louis, MO 63131
(314) 993-4400
Grades: 6-12
| 851 students
Chaminade College Preparatory School
All-boys (Catholic)
425 S Lindbergh Blvd
Saint Louis, MO 63131
(314) 993-4400
Saint Louis, MO 63131
(314) 993-4400
Grades: 6-12
| 832 students
Christian Brothers College High School![Christian Brothers College High School Photo Christian Brothers College High School Photo]()

All-boys (Catholic)
1850 De La Salle Dr
Saint Louis, MO 63141
(314) 985-6095
Saint Louis, MO 63141
(314) 985-6095
Grades: 9-12
| 849 students
233 N New Ballas Rd
Saint Louis, MO 63141
(314) 567-3500
Saint Louis, MO 63141
(314) 567-3500
Grades: 9-12
| 645 students
204 N Grand St
Mexico, MO 65265
(573) 581-1776
Mexico, MO 65265
(573) 581-1776
Grades: 7-12
| 193 students
Rockhurst High School![Rockhurst High School Photo Rockhurst High School Photo]()

All-boys (Catholic)
9301 State Line Rd
Kansas City, MO 64114
(816) 363-2036
Kansas City, MO 64114
(816) 363-2036
Grades: 9-12
| 938 students
1311 S Kirkwood Rd
Saint Louis, MO 63122
(314) 965-4853
Saint Louis, MO 63122
(314) 965-4853
Grades: 9-12
| 526 students
St. Louis Priory School
All-boys (Catholic)
500 S Mason Rd
Saint Louis, MO 63141
(314) 434-3690
Saint Louis, MO 63141
(314) 434-3690
Grades: 7-12
| 331 students
4970 Oakland Ave
Saint Louis, MO 63110
(314) 531-0330
Saint Louis, MO 63110
(314) 531-0330
Grades: 9-12
| 1,008 students
RR 3 Box 34725
Piedmont, MO 63957
(573) 223-2025
Piedmont, MO 63957
(573) 223-2025
Grades: 5-12
| 15 students
296 Boys Ranch Rd
Lampe, MO 65681
(417) 779-5374
Lampe, MO 65681
(417) 779-5374
Grades: 4-12
| 20 students
Missouri Torah Institute
All-boys | Special Program Emphasis (Jewish)
1809 Clarkson Rd
Chesterfield, MO 63017
(636) 778-1896
Chesterfield, MO 63017
(636) 778-1896
Grades: 9-12
| 72 students
St. Mary's High School![St. Mary's High School Photo St. Mary's High School Photo]()

All-boys (Catholic)
4701 S Grand Blvd
Saint Louis, MO 63111
(314) 481-8400
Saint Louis, MO 63111
(314) 481-8400
Grades: 9-12
| 271 students
Teen Harvest![Teen Harvest Photo - Boys and Staff Teen Harvest Photo - Boys and Staff]()

All-boys | Alternative School (Christian)
Co Rd 402
Ava, MO 65608
(417) 683-1080
Ava, MO 65608
(417) 683-1080
Grades: 7-12
| 10 students
Frequently Asked Questions
What are the top ranked all-boys private high schools in Missouri?
The top ranked all-boys private high schools in Missouri include St. Louis University High School, Christian Brothers College High School, and Chaminade College Prep School.
How many all-boys private high schools are located in Missouri?
14 all-boys private high schools are located in Missouri.
How much do all-boys private high schools cost in Missouri?
The average tuition cost is $18,672, which is higher than the Missouri private school average tuition cost of $14,934.
How diverse are all-boys private high schools in Missouri?
Missouri all-boys private high schools are approximately 19% minority students, which is lower than the Missouri private school average of 23%.
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