St. Mary's High School is a private, Catholic high school in Storm Lake, Iowa. It is located in the Diocese of Sioux City.
Quick Facts (2025-26)
- Grades: Prekindergarten-12
- Enrollment: 310 students
- Application Deadline: None / Rolling
- Source: National Center for Education Statistics (NCES)
Top Rankings
St. Mary's School ranks among the top 20% of private schools in Iowa for:
Category
Attribute
School Overview
Religious Affiliation
Grades Offered
Grades Prekindergarten-12
Year Founded
1912
Colors
White, Black
School Calendar
Student Body
Total Students
310 students
Student Body Type
Co-ed
% Students of Color
39%
State avg.: 16%
Students by Grade
Academics and Faculty
Total Classroom Teachers
31 teachers
Student-Teacher Ratio
10:1
National avg.: 13:1
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Application URL
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
When is the application deadline for St. Mary's School?
The application deadline for St. Mary's School is rolling (applications are reviewed as they are received year-round).
Nearby Private Schools
The nearest high school to St. Mary's School is St. Mary's School (41.2 miles away)
The nearest elementary school is Pocahontas Catholic School (27.3 miles away)
The nearest preschool is Zion-st John Lutheran School (33.9 miles away)
Show me:
School
Location
Miles
Quick Facts
Pocahontas Catholic School
(Catholic)
305 Sw 3rd St
Pocahontas, IA 50574
(712) 335-3603
Pocahontas, IA 50574
(712) 335-3603
27.3 miles
Gr: K-5 | 84 students Tuition listed
Zion-st John Lutheran School
(Lutheran Church Missouri Synod)
103 W Bertha St
Paullina, IA 51046
(712) 949-3915
Paullina, IA 51046
(712) 949-3915
33.9 miles
Gr: PK-8 | 81 students Avg. class size: 8 students Tuition & acceptance rate listed
Iowa Great Lakes Lutheran School![Iowa Great Lakes Lutheran School Photo]( "Iowa Great Lakes Lutheran School Photo")
(Lutheran Church Missouri Synod)
1311 E. 18th St
Spencer, IA 51301
(712) 262-8237
Spencer, IA 51301
(712) 262-8237
35.8 miles
Gr: K-6 | 91 students Avg. class size: 12 students Sports: 1 Tuition listed
Danbury Catholic School
(Catholic)
602 Peach St
Danbury, IA 51019
(712) 883-2244
Danbury, IA 51019
(712) 883-2244
38.5 miles
Gr: PK-6 | 56 students
St. Mary's School
(Catholic)
523 Madison Street
Remsen, IA 51050
(712) 786-1433
Remsen, IA 51050
(712) 786-1433
41.2 miles
Gr: PK-12 | 192 students
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