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Best Minnesota Boarding Schools (2026)
For the 2026 school year, there are 6 college-prep and junior boarding schools serving 2,056 students located throughout Minnesota.
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Top Minnesota Boarding Schools (2026)
Cotter Schools
Gr:
7-12 | PK-12 (day) | 450 students
Student-teacher ratio:
13:1
Avg. class size:
18 students
Acceptance rate:
93%
Tuition listed
Catholic, serving persons of all faiths
1115 West Broadway Street
Winona, MN 55987
(507) 453-5102
The International School of Minnesota (ISM)
Gr:
8-12 | Pre-K-12 (day) | 320 students
Student-teacher ratio:
1:10
Tuition listed
6385 Beach Rd
Eden Prairie, MN 55344
(952) 918-1800
Duluth, MN
Marshall School
Gr:
8-12 | K-12 (day) | 456 students
Student-teacher ratio:
10:1
Avg. class size:
15 students
Tuition listed
1215 Rice Lake Rd
Duluth, MN 55811
(218) 727-7266
Pillsbury College Prep
Gr:
6-12 | 50 students
Student-teacher ratio:
5:1
Acceptance rate:
85%
Tuition listed
315 South Grove Avenue
Owatonna, MN 55060
(507) 214-2200
St. Croix Academy
Gr:
6-12 | 500 students
Student-teacher ratio:
13:1
Avg. class size:
20 students
Tuition listed
Wisconsin Evangelical Lutheran Synod (WELS) or the Evangelical Lutheran Synod (ELS)
1200 Oakdale Ave.
St. Paul, MN 55118
(651) 455-1521
Collegeville, MN
Saint John's Preparatory School
Gr:
9-12, PG | 6-12, PG (day) | 280 students
Student-teacher ratio:
1:11
Avg. class size:
18 students
Acceptance rate:
88%
Tuition listed
Catholic Benedictine tradition
2280 Watertower Road
Collegeville, MN 56321
(320) 363-3315
Frequently Asked Questions
How many boarding schools are located in Minnesota?
There are 6 college-preparatory boarding schools located in Minnesota.
What is the average tuition cost of boarding school in Minnesota?
The average Minnesota boarding school tuition cost is $38,223 per year.
What is the oldest boarding school in Minnesota?
Saint John's Preparatory School
, founded in 1857, is the oldest boarding school in Minnesota.
What boarding school in Minnesota has the lowest acceptance rates?
Pillsbury College Prep
has the lowest boarding school acceptance rate (85%) in Minnesota.
What boarding school in Minnesota has the highest average SAT scores?
Saint John's Preparatory School
has the highest average SAT scores (1373) in Minnesota.
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Quick Facts (2026)
# Boarding Schools:
6
# Students Served:
2,056
Average Tuition:
$38,223
Average Acceptance Rate:
89%
Average Class Size:
18 students
% Students Boarding:
32%
% International Students:
24%
% Students of Color:
27%
% Students on Financial Aid:
41%
Average SAT Score:
1,262
% Faculty w/Advanced Degree:
66%
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Marshall School
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