Three Sisters Adventist Christian School serves 62 students in grades Prekindergarten-8.
The student:teacher of Three Sisters Adventist Christian School is 16:1 and the school's religious affiliation is Seventh Day Adventist.
Quick Stats (2025)
- Top Ranked OR School
- Grades: Prekindergarten-8
- Enrollment: 62 students
- Yearly Tuition: $25,000
- Acceptance rate: 85%
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
Three Sisters Adventist Christian School ranks among the top 20% of private schools in Oregon for:
Category
Attribute
School History
School Overview
Religious Affiliation
Grades Offered
Grades Prekindergarten-8
Year Founded
1924
School Calendar
First Day of School
Fri. Aug 15, 2025
Last Day of School
Mon. May 25, 2026
Student Body
Total Students
62 students
Student Body Type
Co-ed
% Students of Color
4%
State avg.: 25%
Students by Grade

Academics and Faculty
Total Classroom Teachers
4 teachers
Student : Teacher Ratio
16:1
National avg.: 13:1
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
$25,000
Acceptance Rate
85%
National avg.: 81%
Application URL
Source: Verified school update
Frequently Asked Questions
How much does Three Sisters Adventist Christian School cost?
Three Sisters Adventist Christian School's tuition is approximately $25,000 for private students.
What is the acceptance rate of Three Sisters Adventist Christian School?
The acceptance rate of Three Sisters Adventist Christian School is 85%, which is higher than the national average of 82%.
What is Three Sisters Adventist Christian School's ranking?
Three Sisters Adventist Christian School ranks among the top 20% of private schools in Oregon for: Oldest founding date.
When is the application deadline for Three Sisters Adventist Christian School?
The application deadline for Three Sisters Adventist Christian School is rolling (applications are reviewed as they are received year-round).
School Reviews
5 3/24/2023
We have had a great experience with TSACS providing a thorough education for our children.
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