The Greenwich Country Day School is a co-educational, independent day school in Greenwich, Connecticut, United States, founded in 1926.
As of 2019, it enrolled some 1190 students from nursery to 12th grade level.
Quick Stats (2025)
- Top Ranked CT School
- Grades: Prekindergarten-12
- Enrollment: 1,345 students
- Acceptance rate: 23%
- Average class size: 15 students
- Application Deadline: None / Rolling
- Source: National Center for Education Statistics (NCES)
Top Rankings
The Greenwich Country Day School ranks among the top 20% of private schools in Connecticut for:
School Overview
Religious Affiliation
Grades Offered
Grades Prekindergarten-12
Year Founded
1926
School Calendar
First Day of School
Mon. Sep 1, 2025
Last Day of School
Mon. May 25, 2026
Student Body
Total Students
1,345 students
Student Body Type
Co-ed
% Students of Color
16%
State avg.: 31%
Students by Grade

Academics and Faculty
Total Classroom Teachers
158 teachers
Student : Teacher Ratio
9:1
National avg.: 13:1
Average Class Size
15 students
Tuition and Acceptance Rate
School Notes
- School Motto: It's how we think.
- School Mascot: The Tiger
Source: National Center for Education Statistics (NCES)
Frequently Asked Questions
What is the acceptance rate of The Greenwich Country Day School?
The acceptance rate of The Greenwich Country Day School is 23%, which is lower than the national average of 70%. The Greenwich Country Day School's acceptance rate is ranked among the top private schools in Connecticut with low acceptance rates.
What is The Greenwich Country Day School's ranking?
The Greenwich Country Day School ranks among the top 20% of private schools in Connecticut for: Lowest average acceptance rates and Largest student body.
When is the application deadline for The Greenwich Country Day School?
The application deadline for The Greenwich Country Day School is rolling (applications are reviewed as they are received year-round).
School Reviews
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