Serving 337 students in grades Kindergarten-5, Cos Cob School ranks in the top 30% of all schools in Connecticut for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 60-64% (which is higher than the Connecticut state average of 40%). The percentage of students achieving proficiency in reading/language arts is 65-69% (which is higher than the Connecticut state average of 50%).
The student:teacher ratio of 9:1 is lower than the Connecticut state level of 12:1.
Minority enrollment is 34% of the student body (majority Hispanic), which is lower than the Connecticut state average of 52% (majority Hispanic).
Quick Stats (2024-25)
- School Type: Magnet School
- Grades: Kindergarten-5
- Enrollment: 337 students
- Student:Teacher Ratio: 9:1
- Minority Enrollment: 34%
- Overall Testing Rank: Top 30% in CT
- Math Proficiency: 60-64% (Top 30%)
- Reading Proficiency: 65-69% (Top 30%)
- Science Proficiency: 55-59% (Top 50%)
- Source: National Center for Education Statistics (NCES), CT Dept. of Education
Top Rankings
Cos Cob School ranks among the top 20% of public schools in Connecticut for:
Category
Attribute
Student Attention
School Overview
Cos Cob School's student population of 337 students has declined by 18% over five school years.
The teacher population of 38 teachers has grown by 8% over five school years.
School Type
Grades Offered
Grades Kindergarten-5
(offers virtual instruction)
(offers virtual instruction)
Total Students
337 students
Gender %
Total Classroom Teachers
38 teachers
Students by Grade
School Rankings
Cos Cob School ranks within the top 30% of all 942 schools in Connecticut (based off of combined math and reading proficiency testing data).
The diversity score of Cos Cob School is 0.53, which is less than the diversity score at state average of 0.67. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#215 out of 942 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
60-64%
40%
Reading/Language Arts Test Scores (% Proficient)
65-69%
50%
Science Test Scores (% Proficient)
55-59%
47%
Student : Teacher Ratio
9:1
12:1
American Indian
n/a
n/a
Asian
10%
5%
Hispanic
15%
30%
Black
1%
12%
White
66%
48%
Hawaiian
n/a
n/a
Two or more races
8%
5%
All Ethnic Groups
Eligible for Free Lunch
12%
36%
Eligible for Reduced Lunch
1%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CT Dept. of Education
Frequently Asked Questions
What is Cos Cob School's ranking?
Cos Cob School is ranked #215 out of 942 schools, which ranks it among the top 30% of public schools in Connecticut.
What schools are Cos Cob School often compared to?
Cos Cob Schoolis often viewed alongside schools like International School At Dundee by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
60-64% of students have achieved math proficiency (compared to the 40% CT state average), while 65-69% of students have achieved reading proficiency (compared to the 50% CT state average).
How many students attend Cos Cob School?
337 students attend Cos Cob School.
What is the racial composition of the student body?
66% of Cos Cob School students are White, 15% of students are Hispanic, 10% of students are Asian, 8% of students are Two or more races, and 1% of students are Black.
What is the student:teacher ratio of Cos Cob School?
Cos Cob School has a student ration of 9:1, which is lower than the Connecticut state average of 12:1.
What grades does Cos Cob School offer ?
Cos Cob School offers enrollment in grades Kindergarten-5 (offers virtual instruction).
What school district is Cos Cob School part of?
Cos Cob School is part of Greenwich School District.
School Reviews
Review Cos Cob School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
Drug Testing Teachers: Testing Positive or Negative?
This article examines the ongoing debate about drug testing for teachers in public schools. It discusses the rationale behind such policies, privacy concerns, cost implications, and the relatively low prevalence of drug use among educators. The piece also explores future considerations for drug testing policies in educational settings.
Head in the Clouds: Why Public Schools are Embracing Cloud Computing
Explore how public schools are integrating cloud computing into their educational frameworks. Understand the advantages such as enhanced collaboration, cost savings, and accessibility, as well as the challenges schools face in adopting this technology.
September 27, 2024
Understanding RubricsThis article explores the fundamental principles of rubrics in education, focusing on their role as assessment tools. It breaks down the key components of rubrics, including criteria, performance levels, and descriptors. The piece also delves into the two main types of rubrics - holistic and analytic - providing authoritative definitions and explaining their unique applications in educational settings.
