Serving 423 students in grades 6-8, Haddam-killingworth Middle School ranks in the top 30% 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 53% (which is higher than the Connecticut state average of 41%). The percentage of students achieving proficiency in reading/language arts is 70% (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 11% of the student body (majority Hispanic), which is lower than the Connecticut state average of 54% (majority Hispanic).
Quick Facts (2026)
- Grades: 6-8
- Enrollment: 423 students
- Student-Teacher Ratio: 11:1
- Minority Enrollment: 11%
- Overall Testing Rank: Top 30% in CT
- Math Proficiency: 53% (Top 50%)
- Reading Proficiency: 70% (Top 30%)
- Science Proficiency: 65-69% (Top 20%)
- Attendance Zone: Haddam-Killingworth Middle School serves the entire district of Killingworth, CT, encompassing an area of approximately 82.1 square miles. Most students live within a 10-15 minute drive, with the furthest edge of the attendance zone located about 10.8 miles from the school.
- Source: National Center for Education Statistics (NCES), CT Dept. of Education
Top Rankings
Haddam-killingworth Middle School ranks among the top 20% of public schools in Connecticut for:
Category
Attribute
Science Proficiency
School Overview
Haddam-killingworth Middle School's student population of 423 students has stayed relatively flat over five school years.
The teacher population of 38 teachers has grown by 11% over five school years.
Grades Offered
Grades 6-8
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
423 students
Total Classroom Teachers
38 teachers
School Rankings
Haddam-killingworth Middle School ranks within the top 30% of all 939 schools in Connecticut (based off of combined math and reading proficiency testing data).
The diversity score of Haddam-killingworth Middle School is 0.21, 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
#280 out of 939 schools
(Top 30%)
(Top 30%)
Math Test Scores (% Proficient)
53%
41%
Reading/Language Arts Test Scores (% Proficient)
70%
50%
Science Test Scores (% Proficient)
65-69%
47%
Student-Teacher Ratio
11:1
12:1
American Indian
n/a
n/a
Asian
1%
5%
Hispanic
5%
32%
Black
2%
12%
White
89%
46%
Hawaiian
n/a
n/a
Two or more races
3%
5%
All Ethnic Groups
Chronically Absent Students
(22-23)7.6%
19.3%
Eligible for Free Lunch
13%
38%
Eligible for Reduced Lunch
3%
6%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CT Dept. of Education
Frequently Asked Questions
What is Haddam-killingworth Middle School's ranking?
Haddam-killingworth Middle School is ranked #280 out of 939 schools, which ranks it among the top 30% of public schools in Connecticut.
What percent of students have achieved state testing proficiency in math and reading?
53% of students have achieved math proficiency (compared to the 41% CT state average), while 70% of students have achieved reading proficiency (compared to the 50% CT state average).
How many students attend Haddam-killingworth Middle School?
423 students attend Haddam-killingworth Middle School.
What is the racial composition of the student body?
89% of Haddam-killingworth Middle School students are White, 5% of students are Hispanic, 3% of students are Two or more races, 2% of students are Black, and 1% of students are Asian.
What is the student-teacher ratio of Haddam-killingworth Middle School?
Haddam-killingworth Middle School has a student ration of 11:1, which is lower than the Connecticut state average of 12:1.
What grades does Haddam-killingworth Middle School offer ?
Haddam-killingworth Middle School offers enrollment in grades 6-8 (Supplemental Virtual).
What school district is Haddam-killingworth Middle School part of?
Haddam-killingworth Middle School is part of Regional School District 17.
School Calendar
View the Haddam-killingworth Middle School yearly calendar below.
School Reviews
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