Greenwich High School is a four-year public high school in Greenwich, Connecticut, United States. The school is part of the Greenwich Public Schools system and serves roughly 2,700 students. It offers over 295 courses and a wide variety of co-curricular and extra-curricular activities.
Serving 2,620 students in grades 9-12, Greenwich High School ranks in the top 20% 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 64% (which is higher than the Connecticut state average of 41%). The percentage of students achieving proficiency in reading/language arts is 79% (which is higher than the Connecticut state average of 50%).
The student-teacher ratio of 13:1 is higher than the Connecticut state level of 12:1.
Minority enrollment is 42% of the student body (majority Hispanic), which is lower than the Connecticut state average of 54% (majority Hispanic).
Quick Facts (2026-27)
- Grades: 9-12
- Enrollment: 2,620 students
- Student-Teacher Ratio: 13:1
- Minority Enrollment: 42%
- Graduation Rate: 94% (Top 50% in CT)
- Overall Testing Rank: Top 20%
- Math Proficiency: 64% (Top 30%)
- Reading Proficiency: 79% (Top 10%)
- Science Proficiency: 80% (Top 10%)
- Attendance Zone: Greenwich High School's attendance zone encompasses the entire school district in Greenwich, CT, covering an area of approximately 51.8 square miles. Most families can expect a typical drive of 10-12 minutes to the school, with the furthest edge of the zone located 7.3 miles away.
- Source: National Center for Education Statistics (NCES), CT Dept. of Education
Top Rankings
Greenwich High School ranks among the top 20% of public schools in Connecticut for:
Category
Attribute
Overall Rank
Reading/Language Arts Proficiency
Science Proficiency
School Overview
Greenwich High School's student population of 2,620 students has stayed relatively flat over five school years.
The teacher population of 196 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
2,620 students
Total Classroom Teachers
196 teachers
School Rankings
Greenwich High School ranks within the top 20% of all 939 schools in Connecticut (based off of combined math and reading proficiency testing data).
The diversity score of Greenwich High School is 0.59, 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
#127 out of 939 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
64%
41%
Reading/Language Arts Test Scores (% Proficient)
79%
50%
Science Test Scores (% Proficient)
80%
47%
Student-Teacher Ratio
13:1
12:1
Asian
8%
5%
Hispanic
26%
32%
Black
2%
12%
White
58%
46%
Two or more races
6%
5%
All Ethnic Groups
Graduation Rate
94%
88.2%
Chronically Absent Students
(22-23)11%
19.3%
Eligible for Free Lunch
17%
38%
Eligible for Reduced Lunch
6%
6%
School Statewide Testing
School District Name
Sports
Colors
Black, Red
School Mascot
Cardinal
Source: National Center for Education Statistics (NCES), CT Dept. of Education
Frequently Asked Questions
What is Greenwich High School's ranking?
Greenwich High School is ranked #127 out of 939 schools, which ranks it among the top 20% of public schools in Connecticut.
What schools are Greenwich High School often compared to?
Greenwich High Schoolis often viewed alongside schools like Darien High School, New Canaan High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
64% of students have achieved math proficiency (compared to the 41% CT state average), while 79% of students have achieved reading proficiency (compared to the 50% CT state average).
What is the graduation rate of Greenwich High School?
The graduation rate of Greenwich High School is 94%, which is higher than the Connecticut state average of 88.2%.
How many students attend Greenwich High School?
2,620 students attend Greenwich High School.
What is the racial composition of the student body?
58% of Greenwich High School students are White, 26% of students are Hispanic, 8% of students are Asian, 6% of students are Two or more races, and 2% of students are Black.
What is the student-teacher ratio of Greenwich High School?
Greenwich High School has a student ration of 13:1, which is higher than the Connecticut state average of 12:1.
What grades does Greenwich High School offer ?
Greenwich High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Greenwich High School part of?
Greenwich High School is part of Greenwich School District.
School Calendar
View the Greenwich High School yearly calendar below. Note key dates such as:
Event
Date
Yom Kippur - Schools Closed
September 21, 2026 (Monday)
Columbus Day - SCHOOLS OPEN
October 12, 2026 (Monday)
Election Day - Schools Closed
November 03, 2026 (Tuesday)
Veteran's Day - SCHOOLS OPEN
November 11, 2026 (Wednesday)
Thanksgiving Recess - Schools Closed
November 26, 2026 (Thursday)
School Reviews
Review Greenwich High School. Reviews should be a few sentences in length. Please include any comments on:
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