For the 2025 school year, there are 3 public schools serving 944 students in Killingworth, CT.
The top ranked public schools in Killingworth, CT are Killingworth Elementary School, Haddam-killingworth Intermediate School and Haddam-killingworth Middle School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Killingworth, CT public schools have an average math proficiency score of 58% (versus the Connecticut public school average of 40%), and reading proficiency score of 71% (versus the 51% statewide average). Schools in Killingworth have an average ranking of 8/10, which is in the top 30% of Connecticut public schools.
Minority enrollment is 11% of the student body (majority Hispanic), which is less than the Connecticut public school average of 54% (majority Hispanic).
Best Public Schools in Killingworth, CT (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Killingworth Elementary School
(Math: 70-79% | Reading: 70-79%)
Rank:
Rank:
9/
Top 20%10
340 Route 81
Killingworth, CT 06419
(860) 663-1121
Killingworth, CT 06419
(860) 663-1121
Grades: PK-3
| 269 students
Rank: #22.
Haddam-killingworth Intermediate School
(Math: 65% | Reading: 73%)
Rank:
Rank:
9/
Top 20%10
451 Route 81
Killingworth, CT 06419
(860) 663-1241
Killingworth, CT 06419
(860) 663-1241
Grades: 4-5
| 280 students
Rank: #33.
Haddam-killingworth Middle School
(Math: 50% | Reading: 70%)
Rank:
Rank:
7/
Top 50%10
451 Route 81
Killingworth, CT 06419
(860) 663-1241
Killingworth, CT 06419
(860) 663-1241
Grades: 6-8
| 395 students
Frequently Asked Questions
What are the top ranked public schools in Killingworth, CT?
The top ranked public schools in Killingworth, CT include Killingworth Elementary School, Haddam-killingworth Intermediate School and Haddam-killingworth Middle School.
How many public schools are located in Killingworth?
3 public schools are located in Killingworth.
What is the racial composition of students in Killingworth?
Killingworth public schools minority enrollment is 11% of the student body (majority Hispanic), which is less than the Connecticut public schools average of 54% (majority Hispanic).
Recent Articles

Understanding Self-Contained Classrooms in Public Schools
Learn about the history of public schools incorporating self-contained classrooms, and whether they are right for your child.

Can Naviance Succeed Improve College and Career Readiness?
Learn about a new student assessment system, Naviance Succeed, which provides tools and support to increase student college and career readiness. A number of school districts are using the tool this year in hopes of improving student performance through more accurate assessment process than are currently available.

Do You Need After School Day Care? Public Schools May Be the Solution
Learn about how your child's public school may be the best source of after school and vacation day care.