Serving 375 students in grades Prekindergarten-5, Catherine Kolnaski Magnet School ranks in the bottom 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 50-54% (which is approximately equal to 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 62% of the student body (majority Hispanic), which is higher than the Connecticut state average of 54% (majority Hispanic).
Quick Facts (2026)
- School Type: Magnet School
- Grades: Prekindergarten-5
- Enrollment: 375 students
- Student-Teacher Ratio: 12:1
- Minority Enrollment: 62%
- Overall Testing Rank: Bottom 50% in CT
- Math Proficiency: 40-44% (Top 50%)
- Reading Proficiency: 50-54% (Top 50%)
- Science Proficiency: 40-49% (Btm 50%)
- Source: National Center for Education Statistics (NCES), CT Dept. of Education
Top Rankings
Catherine Kolnaski Magnet School ranks among the top 20% of public schools in Connecticut for:
Category
Attribute
Most improved public schools
Diversity
Student Attention
School Overview
Catherine Kolnaski Magnet School's student population of 375 students has stayed relatively flat over five school years.
The teacher population of 31 teachers has grown by 14% over five school years.
School Type
Grades Offered
Grades Prekindergarten-5
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
375 students
Total Classroom Teachers
31 teachers
School Rankings
Catherine Kolnaski Magnet School ranks within the bottom 50% of all 939 schools in Connecticut (based off of combined math and reading proficiency testing data).
The diversity score of Catherine Kolnaski Magnet School is 0.73, which is more 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
#471 out of 939 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
40-44%
41%
Reading/Language Arts Test Scores (% Proficient)
50-54%
50%
Science Test Scores (% Proficient)
40-49%
47%
Student-Teacher Ratio
12:1
12:1
American Indian
1%
n/a
Asian
8%
5%
Hispanic
30%
32%
Black
5%
12%
White
38%
46%
Hawaiian
n/a
n/a
Two or more races
18%
5%
All Ethnic Groups
Eligible for Free Lunch
73%
38%
Eligible for Reduced Lunch
7%
6%
School Statewide Testing
School District Name
Groton School District
Source: National Center for Education Statistics (NCES), CT Dept. of Education
Frequently Asked Questions
What is Catherine Kolnaski Magnet School's ranking?
Catherine Kolnaski Magnet School is ranked #471 out of 939 schools, which ranks it among the bottom 50% of public schools in Connecticut.
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 50-54% of students have achieved reading proficiency (compared to the 50% CT state average).
How many students attend Catherine Kolnaski Magnet School?
375 students attend Catherine Kolnaski Magnet School.
What is the racial composition of the student body?
38% of Catherine Kolnaski Magnet School students are White, 30% of students are Hispanic, 18% of students are Two or more races, 8% of students are Asian, 5% of students are Black, and 1% of students are American Indian.
What is the student-teacher ratio of Catherine Kolnaski Magnet School?
Catherine Kolnaski Magnet School has a student ration of 12:1, which is equal to the Connecticut state average of 12:1.
What grades does Catherine Kolnaski Magnet School offer ?
Catherine Kolnaski Magnet School offers enrollment in grades Prekindergarten-5 (Supplemental Virtual).
What school district is Catherine Kolnaski Magnet School part of?
Catherine Kolnaski Magnet School is part of Groton School District.
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