St. Mary's High School provides a God-centered atmosphere that allows students to develop their knowledge of the Catholic faith and to live that faith in their personal lives.
As Christians, we proclaim counter-cultural values and teach respect for God, all people, and all creation.
We instill moral values in our students and encourage one another to foster stewardship of the gifts God has given each of us.
The philosophy of St. Mary's High School is based on Biblical teachings, culminating in the life, death, and resurrection of Jesus Christ and continuing through current Catholic Church teachings.
Our school complements the family by promoting the holistic education of each student, focusing on spiritual, scholastic, and social development.
Our educational system helps each student to gain a broad base of knowledge and experience across all curriculum areas.
In order to prepare individual students to be citizens of a global community, we stress effective communication, physical well-being, advanced technological skills, responsible decision making, higher-level thinking, individual creativity, and the ability to access and interpret information.
Since education is ongoing, we approach these essential skills as part of a lifelong process.
Quick Stats (2025)
- Top Ranked IA School
- Grades: Prekindergarten-12
- Enrollment: 192 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 History
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-12
Year Founded
1902
Colors
White, Royal blue
Student Body
Total Students
192 students
Student Body Type
Co-ed
% Students of Color
1%
State avg.: 16%
Students by Grade

Academics and Faculty
Total Classroom Teachers
26 teachers
Student : Teacher Ratio
7:1
National avg.: 13:1
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
School Notes
- School Mascot: Hawks
- St. Mary's High School provides a God-centered atmosphere that allows students to develop their knowledge of the Catholic faith and to live that faith in their personal lives. As Christians, we proclaim counter-cultural values and teach respect for God, all people, and all creation. We instill moral values in our students and encourage one another to foster stewardship of the gifts God has given each of us. The philosophy of St. Mary's High School is based on Biblical teachings, culminating in the life, death, and resurrection of Jesus Christ and continuing through current Catholic Church teachings. Our school complements the family by promoting the holistic education of each student, focusing on spiritual, scholastic, and social development. Our educational system helps each student to gain a broad base of knowledge and experience across all curriculum areas. In order to prepare individual students to be citizens of a global community, we stress effective communication, physical well-being, advanced technological skills, responsible decision making, higher-level thinking, individual creativity, and the ability to access and interpret information. Since education is ongoing, we approach these essential skills as part of a lifelong process.
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
What is St. Mary's School's ranking?
St. Mary's School ranks among the top 20% of private schools in Iowa for: Oldest founding date.
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).
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