Private School Review - Established 2003
International School of Denver
Boulder Country Day

Colorado Private Schools Belonging to International Baccalaureate World School (IB)

For the 2026-27 school year, there are 3 private schools belonging to International Baccalaureate World School (IB) serving 1,132 students in Colorado. You can also find more schools membership associations in Colorado.
The top ranked private schools belonging to International Baccalaureate World School (IB) in Colorado include Mackintosh Academy Boulder, Boulder Country Day, and International School of Denver.
The average acceptance rate is 57%, which is lower than the Colorado private school average acceptance rate of 88%.

Quick Facts (26-27)

  • # Private Schools: 3

Quick Facts (26-27)

  • # Private Schools: 3

Top Ranked Private Schools Belonging to International Baccalaureate World School (IB) in Colorado (2026-27)

Boulder Country Day Photo
Boulder Country Day
Gr: NS-8 | 284 students
Avg. class size: 16 students
Sports: 5 | Extracurriculars: 7
4820 Nautilus Ct N
Boulder, CO 80301
(303) 527-4931
(13)
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International School of Denver Photo
International School of Denver
Gr: PK-9 | 684 students
Avg. class size: 13 students
Sports: 7 | Extracurriculars: 32
Specialized Curriculum
7701 E 1st Pl, Unit C
Denver, CO 80230
(303) 340-3647
(10)
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Map of Mackintosh Academy Boulder
Mackintosh Academy Boulder
Gr: K-8 | 164 students
Avg. class size: 18 students
Sports: 1
6717 S. Boulder Road
Boulder, CO 80303
(303) 554-2011
(4)
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Frequently Asked Questions

What are the top ranked private schools belonging to International Baccalaureate World School (IB) in Colorado?
The top ranked private schools belonging to International Baccalaureate World School (IB) in Colorado include Mackintosh Academy Boulder, Boulder Country Day, and International School of Denver.
How many private schools belonging to International Baccalaureate World School (IB) are located in Colorado?
3 private schools belonging to International Baccalaureate World School (IB) are located in Colorado.
3
Private Schools
1,132
Students
$32,682
Avg. Tuition
15%
Students of Color
7:1
Student-Teacher Ratio

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