Serving 339 students in grades Prekindergarten-5, Charles Barnum Magnet School ranks in the top 50% of all schools in Connecticut for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 40-44% (which is approximately equal to the Connecticut state average of 41%). The percentage of students achieving proficiency in reading/language arts is 55-59% (which is higher than the Connecticut state average of 50%).
The student-teacher ratio of 12:1 is equal to the Connecticut state level of 12:1.
Minority enrollment is 49% of the student body (majority Hispanic), which is lower than the Connecticut state average of 54% (majority Hispanic).
Quick Facts (2026)
- School Type: Magnet School
- Grades: Prekindergarten-5
- Enrollment: 339 students
- Student-Teacher Ratio: 12:1
- Minority Enrollment: 49%
- Overall Testing Rank: Top 50% in CT
- Math Proficiency: 40-44% (Top 50%)
- Reading Proficiency: 55-59% (Top 50%)
- Science Proficiency: 60-69% (Top 30%)
- Attendance Zone: Charles Barnum School serves the northwest part of Groton, CT, covering an area of approximately 2.6 square miles. Most families in the attendance zone are within a 5-10 minute drive, with an average distance of 1.1 miles to the school and a furthest edge reaching 1.7 miles.
- Source: National Center for Education Statistics (NCES), CT Dept. of Education
School Overview
Charles Barnum Magnet School's student population of 339 students has stayed relatively flat over five school years.
The teacher population of 29 teachers has stayed relatively flat over five school years.
School Type
Grades Offered
Grades Prekindergarten-5
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
339 students
Total Classroom Teachers
29 teachers
School Calendar
School Rankings
Charles Barnum Magnet School ranks within the top 50% of all 939 schools in Connecticut (based off of combined math and reading proficiency testing data).
The diversity score of Charles Barnum Magnet School is 0.65, 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
#439 out of 939 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
40-44%
41%
Reading/Language Arts Test Scores (% Proficient)
55-59%
50%
Science Test Scores (% Proficient)
60-69%
47%
Student-Teacher Ratio
12:1
12:1
American Indian
n/a
n/a
Asian
2%
5%
Hispanic
28%
32%
Black
7%
12%
White
51%
46%
Hawaiian
n/a
n/a
Two or more races
12%
5%
All Ethnic Groups
Chronically Absent Students
(22-23)15%
19.3%
Eligible for Free Lunch
37%
38%
Eligible for Reduced Lunch
14%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CT Dept. of Education
Frequently Asked Questions
What is Charles Barnum Magnet School's ranking?
Charles Barnum Magnet School is ranked #439 out of 939 schools, which ranks it among the top 50% of public schools in Connecticut.
What schools are Charles Barnum Magnet School often compared to?
Charles Barnum Magnet Schoolis often viewed alongside schools like Thames River Magnet School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
40-44% of students have achieved math proficiency (compared to the 41% CT state average), while 55-59% of students have achieved reading proficiency (compared to the 50% CT state average).
How many students attend Charles Barnum Magnet School?
339 students attend Charles Barnum Magnet School.
What is the racial composition of the student body?
51% of Charles Barnum Magnet School students are White, 28% of students are Hispanic, 12% of students are Two or more races, 7% of students are Black, and 2% of students are Asian.
What is the student-teacher ratio of Charles Barnum Magnet School?
Charles Barnum Magnet School has a student ration of 12:1, which is equal to the Connecticut state average of 12:1.
What grades does Charles Barnum Magnet School offer ?
Charles Barnum Magnet School offers enrollment in grades Prekindergarten-5 (Supplemental Virtual).
What school district is Charles Barnum Magnet School part of?
Charles Barnum Magnet School is part of Groton School District.
In what neighborhood is Charles Barnum Magnet School located?
Charles Barnum Magnet School is located in the Conning Towers Nautilus Park neighborhood of Groton, CT. There are 1 other public schools located in Conning Towers Nautilus Park.
School Reviews
Review Charles Barnum Magnet 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
How to Evaluate School Safety Beyond Headlines
Learn how to evaluate school safety beyond headlines by examining reliable data, school climate, emergency planning, bullying prevention, communication, student experiences, and everyday security practices before choosing a school.
Choosing a Public School for Executive Function Needs
Learn how to choose a public school for a child with executive function challenges by evaluating routines, classroom support, organization, accommodations, communication, transitions, and special education services before enrollment.
What School Climate Surveys Tell You Before Enrolling
Learn how school climate surveys reveal student safety, belonging, relationships, engagement, and support, and how families can interpret results carefully before choosing a public school for their child today.
