St. Marys School

Our mission is to provide a Catholic environment that offers academic excellence and prepares students for a lifetime of personal and spiritual growth, empowering them to become global citizens.

Quick Stats (2025)

  • Top Ranked ID School
  • Grades: Prekindergarten-8
  • Enrollment: 180 students
  • Yearly Tuition: $5,150
  • Average class size: 15 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

Top Rankings

St. Marys School ranks among the top 20% of private schools in Idaho for:

Category
Attribute
School History

School Overview

Religious Affiliation
Grades Offered
Grades Prekindergarten-8
Year Founded
1949
School Calendar
School Motto
'Truth and Honor'

Student Body

Total Students
180 students
Student Body Type
Co-ed
% Students of Color
31%
State avg.: 15%
Students by Grade
St. Marys School Student By Grade

Academics and Faculty

Total Classroom Teachers
16 teachers
Student : Teacher Ratio
11:1
National avg.: 13:1
Average Class Size
15 students
Classroom Dress Code
Formal
Navy pants, plaid skirts, white or navy shirts

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Yearly Tuition Cost
Tuition Notes
Offer in-parish and out-of-parish tuition levels.
Admissions Director
Kevan Grant
Admissions Associate
Mandy Campanella
Application URL

Sports

Total Sports Offered
6 sports

School Notes

  • *Our students are encouraged to become independent and critical thinkers, self-reliant, and resourceful. Only by thinking for themselves, understanding complex subject matters, and exercising creative problem-solving, can they meet the academic rigor necessary to excel in school and in life.
  • *Enveloped by kindness, patience, and care, our students learn the value of civility, collaboration, and compassion. Modeling these values, teachers, parents, and students celebrate diversity and build relationships without regard to socioeconomic status, culture, or faith.
Source: Verified school update

Frequently Asked Questions

How much does St. Marys School cost?
St. Marys School's tuition is approximately $5,150 for private students.
What schools are St. Marys School often compared to?
St. Marys School is often viewed alongside schools like St. Joseph's Catholic School by visitors of our site.
What sports does St. Marys School offer?
St. Marys School offers 6 interscholastic sports: Basketball, Cross Country, Dance, Football, Track and Field and Volleyball.
What is St. Marys School's ranking?
St. Marys School ranks among the top 20% of private schools in Idaho for: Highest percentage of students of color and Oldest founding date.
When is the application deadline for St. Marys School?
The application deadline for St. Marys School is rolling (applications are reviewed as they are received year-round).

School Reviews

5  
St. Mary's is an incredible community. The teachers and staff are fully committed to engaging with every student. The parish is immensely supportive of the school financially, spiritually, and socially. Families are encouraged to be engaged and involved at the school. We challenge our students to work hard. We have strong academics in language, mathematics, science, and social studies as well as a high-quality religious studies program and Spanish literacy, where students are exposed to the language and culture of many Spanish-speaking communities. Graduates in good standing are accepted into Bishop Kelly.
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Quick Stats (2025)

  • Top Ranked ID School
  • Grades: Prekindergarten-8
  • Enrollment: 180 students
  • Yearly Tuition: $5,150
  • Average class size: 15 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

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Did You Know?

The average private school tuition in Boise, ID is $15,967 for elementary schools and $14,135 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Boise, ID is 81% (read more about average acceptance rates across the country).

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