Serving 406 students in grades Prekindergarten-5, Old Greenwich School ranks in the top 1% of all schools in Connecticut for overall test scores (math proficiency is top 5%, and reading proficiency is top 5%).
The percentage of students achieving proficiency in math is 80-84% (which is higher than the Connecticut state average of 41%). The percentage of students achieving proficiency in reading/language arts is 85-89% (which is higher than the Connecticut state average of 50%).
The student-teacher ratio of 11:1 is lower than the Connecticut state level of 12:1.
Minority enrollment is 16% of the student body (majority Hispanic), which is lower than the Connecticut state average of 53% (majority Hispanic).
Quick Facts (2025-26)
- Grades: Prekindergarten-5
- Enrollment: 406 students
- Student-Teacher Ratio: 11:1
- Minority Enrollment: 16%
- Overall Testing Rank: Top 1% in CT
- Math Proficiency: 80-84% (Top 5%)
- Reading Proficiency: 85-89% (Top 1%)
- Science Proficiency: 85-89% (Top 1%)
- Source: National Center for Education Statistics (NCES), CT Dept. of Education
Top Rankings
Old Greenwich School ranks among the top 20% of public schools in Connecticut for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Science Proficiency
School Overview
Old Greenwich School's student population of 406 students has declined by 10% over five school years.
The teacher population of 37 teachers has stayed relatively flat over five school years.
Grades Offered
Grades Prekindergarten-5
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
406 students
Gender %
Total Classroom Teachers
37 teachers
Year Founded
1902
School Calendar
School Rankings
Old Greenwich School ranks within the top 1% of all 939 schools in Connecticut (based off of combined math and reading proficiency testing data).
The diversity score of Old Greenwich School is 0.29, which is less than the diversity score at state average of 0.68. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#9 out of 939 schools
(Top 1%)
(Top 1%)
Math Test Scores (% Proficient)
80-84%
41%
Reading/Language Arts Test Scores (% Proficient)
85-89%
50%
Science Test Scores (% Proficient)
85-89%
47%
Student-Teacher Ratio
11:1
12:1
American Indian
n/a
n/a
Asian
3%
5%
Hispanic
8%
31%
Black
n/a
12%
White
84%
47%
Hawaiian
n/a
n/a
Two or more races
5%
5%
All Ethnic Groups
Eligible for Free Lunch
1%
37%
Eligible for Reduced Lunch
1%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CT Dept. of Education
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Old Greenwich School's ranking?
Old Greenwich School is ranked #9 out of 939 schools, which ranks it among the top 1% of public schools in Connecticut.
What schools are Old Greenwich School often compared to?
Old Greenwich Schoolis often viewed alongside schools like Riverside School, North Mianus School, International School At Dundee by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
80-84% of students have achieved math proficiency (compared to the 41% CT state average), while 85-89% of students have achieved reading proficiency (compared to the 50% CT state average).
How many students attend Old Greenwich School?
406 students attend Old Greenwich School.
What is the racial composition of the student body?
84% of Old Greenwich School students are White, 8% of students are Hispanic, 5% of students are Two or more races, and 3% of students are Asian.
What is the student-teacher ratio of Old Greenwich School?
Old Greenwich School has a student ration of 11:1, which is lower than the Connecticut state average of 12:1.
What grades does Old Greenwich School offer ?
Old Greenwich School offers enrollment in grades Prekindergarten-5 (Supplemental Virtual).
What school district is Old Greenwich School part of?
Old Greenwich School is part of Greenwich School District.
School Reviews
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