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.
St. Croix Academy
Pillsbury College Prep
The International School of Minnesota (ISM)
Saint John's Preparatory School
Cotter Schools

Top Minnesota Boarding Schools (2026)

Cotter Schools Photo
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) Photo - Aerial overview of ISM Campus! We have a 55-acre campus with a new boarding hall with space for 32 students.
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
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 Photo
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 Photo - St. Croix's lakeside family-style dormitory was built in 2015 and is located on a beautiful lake with walkways to the Mississippi River and within walking distance of over 50 shops and restaurants.
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
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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