For the 2026 school year, there is 1 private school in Cos Cob, CT (there are 1 public schools, serving 340 public students).
Private Schools in Cos Cob, CT (2026)
School
Location
Quick Facts
399 East Putnam Ave, 2nd Floor
Cos Cob, CT 06807
(203) 340-2914
Cos Cob, CT 06807
(203) 340-2914
Gr: NS-12
Cos Cob, Connecticut Private Schools (Closed)
School
Location
Quick Facts
Greenwich Kokusai Gakuen (Closed 2024)
Daycare / Preschool
521 E Putnam Avenue
Cos Cob, CT 06807
(203) 629-5567
Cos Cob, CT 06807
(203) 629-5567
Gr: NS-K | 56 students Tuition listed
Overview
This Town (Cos Cob)
This State (CT)
# Schools
1 School
Student Body:
# Students
n/a
64,262 Students
Academics and Faculty:
# Teachers
n/a
7,938 Teachers
Average Student-Teacher Ratio
n/a
8:1
% Average Faculty w/Advanced Degree
75%
70%
Tuition and Acceptance Rate:
Students by Ethnicity:
Diversity Score
-
0.63
# American Indian Students
n/a
716 Students
% American Indian Students
n/a
1%
# Asian Students
n/a
2,908 Students
% Asian Students
n/a
5%
# Hispanic Students
n/a
5,564 Students
% Hispanic Students
n/a
9%
# Black Students
n/a
4,896 Students
% Black Students
n/a
8%
# White Students
n/a
35,016 Students
% White Students
n/a
56%
# Hawaiian Students
n/a
63 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
n/a
12,804 Students
% of Others Students
n/a
21%
All Ethnic Groups
Extracurriculars and Sports:
Frequently Asked Questions
How many private schools are located in Cos Cob, CT?
1 private schools are located in Cos Cob, CT.
Recent Articles
How Global Economic Trends Shape Private School Affordability
Explore how global economic trends influence private school affordability and enrollment in 2026, with insights for families and educators.
Parent Engagement in Private Schools in 2026
Explore how parent engagement in private schools builds strong communities, support networks, and student success in 2026.
So Many Choices: Navigating Private School Selection in 2026
A 2026 parent guide to choosing the right private school, with updated admissions timelines, tuition trends, affordability strategies, and expert insights.


