For the 2025-26 school year, there is 1 private school belonging to National Middle School Association serving 173 students in Iowa. You can also find more schools membership associations in Iowa.
The average acceptance rate is 98%, which is higher than the Iowa private school average acceptance rate of 85%.
100% of private schools belonging to National Middle School Association in Iowa are religiously affiliated (most commonly Catholic).
Private Schools Belonging to National Middle School Association in Iowa (2025-26)
School
Location
Quick Facts
St. Joseph Catholic School
(Catholic)
1430 14th Street
Marion, IA 52302
(319) 377-6348
Marion, IA 52302
(319) 377-6348
Gr: PK-8 | 173 students Avg. class size: 16 students Sports: 7 | Extracurrculars: 8 Tuition & acceptance rate listed
Recent Articles

Transferring from Public to Private School Mid-Year: What to Expect
Considering a mid-year transfer from public to private school? Learn what to expect with admissions, academic placement, social adjustment, and financial aid to ensure a smooth transition.

A Guide to Day vs. Boarding School: Which Is Right for Your Family
Discover the key differences between day and boarding schools to determine the best fit for your child. Explore benefits, costs, lifestyle factors, and questions to help guide your family’s decision.

The A to Z of Private Schools 2025
Explore the A to Z of private schools in 2025—from admissions to tuition—offering parents and educators clear insights into today’s options.