For the 2026 school year, there are 3 private high schools belonging to National Association of Independent Schools (NAIS) serving 851 students in Iowa. You can also find more schools membership associations in Iowa.
The top-ranked private high schools belonging to National Association of Independent Schools (NAIS) in Iowa include Maharishi School, Bishop Heelan Catholic High School, and Rivermont Collegiate.
The average acceptance rate is 80%, which is lower than the Iowa private high school average acceptance rate of 82%.
33% of private high schools belonging to National Association of Independent Schools (NAIS) in Iowa are religiously affiliated (most commonly Catholic).
Top-Ranked Private High Schools Belonging to National Association of Independent Schools (NAIS) in Iowa (2026)
School
Location
Quick Facts
Bishop Heelan Catholic High School![Bishop Heelan Catholic High School Photo - Our students take great PRIDE in all of the school activities Bishop Heelan Catholic High School Photo - Our students take great PRIDE in all of the school activities]()

(Catholic)
1021 Douglas St
Sioux City, IA 51105
(712) 252-0573
Sioux City, IA 51105
(712) 252-0573
Gr: 9-12 | 499 students Sports: 13 | Extracurrculars: 24 Tuition & acceptance rate listed
804 Dr Robert Keith Wallace Drive
Fairfield, IA 52556
(641) 472-9400
Fairfield, IA 52556
(641) 472-9400
Gr: PK-12 | 173 students Avg. class size: 12 students Sports: 7 | Extracurrculars: 9 Tuition & acceptance rate listed
1821 Sunset Dr
Bettendorf, IA 52722
(563) 359-1366
Bettendorf, IA 52722
(563) 359-1366
Gr: PK-12 | 179 students Avg. class size: 13 students Sports: 8 | Extracurrculars: 9 Tuition & acceptance rate listed
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