Glastonbury High School is a public, co-educational high school located in Glastonbury, Connecticut, United States. As the only high school in Glastonbury, it serves around 2,000 students and employs around 150 faculty members.
Serving 1,780 students in grades 9-12, Glastonbury High School ranks in the top 20% of all schools in Connecticut for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 66% (which is higher than the Connecticut state average of 40%). The percentage of students achieving proficiency in reading/language arts is 80% (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 35% of the student body (majority Asian and Hispanic), which is lower than the Connecticut state average of 53% (majority Hispanic).
Quick Stats (2025)
- Grades: 9-12
- Enrollment: 1,780 students
- Student:Teacher Ratio: 13:1
- Minority Enrollment: 35%
- Graduation Rate: 97% (Top 10% in CT)
- Overall Testing Rank: Top 20%
- Math Proficiency: 66% (Top 20%)
- Reading Proficiency: 80% (Top 10%)
- Science Proficiency: 66% (Top 30%)
- Source: National Center for Education Statistics (NCES), CT Dept. of Education
Top Rankings
Glastonbury High School ranks among the top 20% of public schools in Connecticut for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Graduation Rate
School Overview
Glastonbury High School's student population of 1,780 students has declined by 11% over five school years.
The teacher population of 136 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
1,780 students
Gender %
Total Classroom Teachers
136 teachers
Year Founded
1902
Colors
White, Blue
School Calendar
School Rankings
Glastonbury High School ranks within the top 20% of all 942 schools in Connecticut (based off of combined math and reading proficiency testing data).
The diversity score of Glastonbury High School is 0.54, 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
#105 out of 942 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
66%
40%
Reading/Language Arts Test Scores (% Proficient)
80%
50%
Science Test Scores (% Proficient)
66%
47%
Student : Teacher Ratio
13:1
12:1
American Indian
n/a
n/a
Asian
14%
5%
Hispanic
12%
31%
Black
4%
12%
White
65%
47%
Hawaiian
n/a
n/a
Two or more races
5%
5%
All Ethnic Groups
Graduation Rate
97%
89%
Eligible for Free Lunch
11%
37%
Eligible for Reduced Lunch
3%
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 Glastonbury High School's ranking?
Glastonbury High School is ranked #105 out of 942 schools, which ranks it among the top 20% of public schools in Connecticut.
What percent of students have achieved state testing proficiency in math and reading?
66% of students have achieved math proficiency (compared to the 40% CT state average), while 80% of students have achieved reading proficiency (compared to the 50% CT state average).
What is the graduation rate of Glastonbury High School?
The graduation rate of Glastonbury High School is 97%, which is higher than the Connecticut state average of 89%.
How many students attend Glastonbury High School?
1,780 students attend Glastonbury High School.
What is the racial composition of the student body?
65% of Glastonbury High School students are White, 14% of students are Asian, 12% of students are Hispanic, 5% of students are Two or more races, and 4% of students are Black.
What is the student:teacher ratio of Glastonbury High School?
Glastonbury High School has a student ration of 13:1, which is higher than the Connecticut state average of 12:1.
What grades does Glastonbury High School offer ?
Glastonbury High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Glastonbury High School part of?
Glastonbury High School is part of Glastonbury School District.
In what neighborhood is Glastonbury High School located?
Glastonbury High School is located in the Glastonbury Center neighborhood of Glastonbury, CT. There are 3 other public schools located in Glastonbury Center.
School Reviews
5 11/4/2007
Glastonbury High School has grown by leaps and bounds over the past few years. What once used to be an overcrowded construction zone, is now one of the most advanced public schools in Hartford county. The school now has a brand new science center and has completed a full renovation of the entire building. A new artificial turf field and track have been added and sports facilities have been upgraded across the board. Glastonbury sends 75% of its students to 4 year colleges and generally has a very competitive academic system. The median gpa in this school is a 3.5 so expect to work hard to gain any degree of class rank. Music theory and band, jazz band, just about everything is available. A brand new music lab has also been constructed with new keyboards and mixing equipment. The soccer program here is top notch as are several other sports. Nearly half the student body participates in sports and it really does show (there's not many obese people here). There is a new robotics club, there's key club, fbla, gay straight alliance, india club, asian club, international music club, debate team, math club, computer club, just about any club you can name. Due to its a giant student body, there's nothing thats not available to ghs students. Honestly though, the great thing about ghs is the facilities. The new science wing has classrooms with 6 lcd monitors with wireless keyboards and individual lab stations (8-10)per room. Each classroom within the school has an lcd projector and screen for teacher and student presentation use. The school also has a state of the art tv studio for students to produce material with. This school is completely airconditioned and temperature regulated now, so no more cold winters and hot summers, just a constant room temperature. The town of glastonbury invests about 66% or 2 thirds of its revenue into the education system, and it really does show. Teachers are excellent, the history dept in particular has an amazing mix of teachers. The only downside to having such a large school is the sometimes impersonal nature of the school. Its not one of those schools where everybody knows everyone. But I have to hand it to the administration for making students feel like they're in a smaller school by providing a plethora of counseling options and teacher interaction. GHS's programs are extremely respected by colleges, we send more kids to Ivy's than the majority of surround prep schools. Again, a student has to be talented to make it big here. This isn't exactly a place where a student can grow athletically, since everyone is so competitive. But if you plan on having your child make it to a good college, ghs is an excellent option.
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