Private School Review - Established 2003
Sussex School Top 4 · Largest Endowment (MT)
Missoula International School Top 3 · Highest % Faculty w/ Adv. Degrees (MT)

Best Montana Private Schools Belonging to NWAIS (Northwest Association of Independent Schools) (2026)

For the 2026 school year, there are 2 private schools belonging to NWAIS (Northwest Association of Independent Schools) serving 323 students in Montana. You can also find more schools membership associations in Montana.
The top ranked private school belonging to NWAIS (Northwest Association of Independent School) in Montana is Missoula International School.
The average acceptance rate is 75%, which is lower than the Montana private school average acceptance rate of 87%.

Quick Facts (2026)

  • # Private Schools: 2

Quick Facts (2026)

  • # Private Schools: 2

Top Ranked Private Schools Belonging to NWAIS (Northwest Association of Independent Schools) in Montana (2026)

Missoula International School Photo
Missoula International School
Gr: PK-8 | 199 students
Avg. class size: 15 students
Sports: 4 | Extracurriculars: 7
Specialized Curriculum
808 South Third Street West
Missoula, MT 59801
(406) 542-9924
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Sussex School Photo
Sussex School
Gr: K-8 | 124 students
Avg. class size: 14 students
Sports: 7 | Extracurriculars: 6
Alternative School
1800 S 2nd St W
Missoula, MT 59801
(406) 549-8327
(1)
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Frequently Asked Questions

What are the top ranked private schools belonging to NWAIS (Northwest Association of Independent Schools) in Montana?
The top ranked private schools belonging to NWAIS (Northwest Association of Independent Schools) in Montana is Missoula International School.
How many private schools belonging to NWAIS (Northwest Association of Independent Schools) are located in Montana?
2 private schools belonging to NWAIS (Northwest Association of Independent Schools) are located in Montana.
2
Private Schools
323
Students
$13,123
Avg. Tuition
7%
Students of Color
7:1
Student-Teacher Ratio

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