St. Thomas School

St. Thomas School has daily religious instruction that permeates the learning experience.
Students form values necessary for responsible decision-making. St. Thomas School students experience success in state standardized achievement tests given every year.
We take pride in their many successes. St. Thomas School teachers view their work as both a career and a ministry.
The teacher's visible respect for each student, their confidence in your child's abilities, and their genuine concern consciously sets a standard for relationships among classmates.

Quick Facts (2025-26)

  • Top Ranked SD School
  • Grades: Prekindergarten-5
  • Enrollment: 74 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

Top Rankings

St. Thomas School ranks among the top 20% of private schools in South Dakota for:

Category
Attribute
School History

School Overview

Religious Affiliation
Grades Offered
Grades Prekindergarten-5
Year Founded
1929
School Calendar

Student Body

Total Students
74 students
Student Body Type
Co-ed
% Students of Color
11%
State avg.: 21%
Students by Grade
St. Thomas School Student By Grade

Academics and Faculty

Total Classroom Teachers
5 teachers
Student-Teacher Ratio
15:1
National avg.: 13:1

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Tuition Notes
$2,388-$2,933
Application URL

School Notes

  • St. Thomas School has daily religious instruction that permeates the learning experience. Students form values necessary for responsible decision-making. St. Thomas School students experience success in state standardized achievement tests given every year. We take pride in their many successes. St. Thomas School teachers view their work as both a career and a ministry. The teacher's visible respect for each student, their confidence in your child's abilities, and their genuine concern consciously sets a standard for relationships among classmates.
Source: Verified school update

Frequently Asked Questions

What is St. Thomas School's ranking?
St. Thomas School ranks among the top 20% of private schools in South Dakota for: Oldest founding date.
When is the application deadline for St. Thomas School?
The application deadline for St. Thomas School is rolling (applications are reviewed as they are received year-round).

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Quick Facts (2025-26)

  • Top Ranked SD School
  • Grades: Prekindergarten-5
  • Enrollment: 74 students
  • Application Deadline: None / Rolling
  • Source: Verified school update

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Did You Know?

The average private school tuition in South Dakota is $6,372 for elementary schools and $7,804 for high schools (read more about average private school tuition across the country).
The average acceptance rate in South Dakota is 79% (read more about average acceptance rates across the country).

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