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SCHOOL COMMUNITY·REGIONAL SCHOOL DISTRICT 17·NCES 090353901201

Haddam-Killingworth Middle School

451 Route 81, Killingworth, CT 06419 · (860) 663-1241 · Lower Connecticut River Valley Planning Region
GRADES 06–08MIDDLE41-RURALREGULAR SCHOOL423 STUDENTS
A-
allk12 Grade
Scored higher than 80% of Connecticut public middle schools
  • A-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • ·Beats expectations Not available for this school, so the grade uses the other parts.
  • ·Three-year trend Not available for this school, so the grade uses the other parts.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Connecticut public middle schools

Enrollment
423
Middle
DISTRICT 341 · STATE 521
Student : Teacher
11.3:1
38 FTE teachers
DISTRICT 11.1:1 · STATE 11.3:1
Free / Reduced Lunch
16%
66 students
DISTRICT 17% · STATE 44%
Community
5
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 613632%
Grade 713231%
Grade 815537%
Student demographics
21%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 20% · STATE 67% · US 70%
White
37689%
DISTRICT 89% · STATE 46% · US 43%
Hispanic
215%
DISTRICT 5% · STATE 32% · US 30%
Black
72%
DISTRICT 1% · STATE 12% · US 15%
Asian
51%
DISTRICT 1% · STATE 5% · US 6%
Two+
143%
DISTRICT 3% · STATE 5% · US 5%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
21050%
Female
21350%

School pathway

Students here typically continue to
Haddam-Killingworth Middle School→Haddam-Killingworth High School
Feeds from
Haddam-Killingworth Intermediate School04–05
Based on grade levels within Regional School District 17. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

CT Smarter Balanced 2024-25 . % Met or Exceeded Standard
English Language Arts
72.8%
CT avg 50.5%
Math
63.7%
CT avg 45.9%

What this means: On the CT Smarter Balanced, Connecticut's statewide test, about 73 of every 100 students at this school read and write at grade level and about 64 of 100 do math at grade level. Across all Connecticut schools, those numbers are about 51 and 46.

Source: CT Smarter Balanced. All students, all grades. See all years and grades →

Schools most like Haddam-Killingworth Middle School

SchoolStudentsLow-incomeProficient
Haddam-Killingworth Middle School this school42315.6%N/A
E. C. Adams Middle School
Guilford
47814.4%N/A
RHAM Middle School
Hebron
35220.2%N/A
John Read Middle School
Redding
38111.3%N/A
Suffield Middle School
Suffield
44316.0%N/A
Frank Ward Strong School
Durham
31917.2%N/A
Matched among Connecticut middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Haddam-Killingworth Middle School ranks

Among middle schools
MeasureThis schoolIn ConnecticutIn Lower Connecticut River Valley Planning Region
Math proficiency
ranked highest first
63.7%#41 of 174#3 of 13
Reading proficiency
ranked highest first
72.8%#33 of 173#3 of 13
Enrollment
ranked largest first
423#111 of 181#3 of 13
Students per teacher
ranked fewest first
11.3:1#89 of 169#8 of 11
Diversity index
ranked most diverse first
20.6%#169 of 169#11 of 11
Free and reduced lunch
ranked highest share first
15.6%#159 of 180#13 of 13
Enrollment change since 2017-18
ranked steepest decline first
-36.2%#4 of 133#3 of 10
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
423
-10 (-2%) vs 2020
+36% since 1990-91, when it was 310
Student : Teacher
11.3:1
was 12.7:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2542337.511.3:116% (66)
2023-2439539.210.1:111% (43)
2022-2339940.79.8:112% (48)
2020-214333412.7:112% (54)
2017-1866358.511.3:17% (45)
2015-167466012.4:110% (73)
2010-117986113.1:18% (67)
2000-013763311.4:1N/A
1990-913102512.4:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Haddam-Killingworth Middle School.

Since 2017-18: students down 36% (663 to 423); teachers down 36% (58.5 to 37.5).

About Haddam-Killingworth Middle School

Haddam-Killingworth Middle School is a low-enrollment middle school in Killingworth, Connecticut, (ZIP code 06419). The school's enrollment of 423 students covers grades 6 through 8.

Regional School District 17 runs 5 schools with a combined 1,704 students. Haddam-Killingworth Middle School is one of them.

About 89% of the student body at Haddam-Killingworth Middle School is White. Other reported shares: 5% Hispanic and 3% multiracial. That compares with about 81% White among all Lower Connecticut River Valley Planning Region residents. The school's diversity index is 21%, meaning two students picked at random have a 21% chance of belonging to different racial or ethnic groups.

Its 37.5 full-time-equivalent teachers give the school a ratio of 11.3:1. For comparison, middle schools in Connecticut average 11.3:1. Free or reduced-price lunch eligibility is 16%. The gap from the 32% average for public schools in Lower Connecticut River Valley Planning Region is 16 points.

allk12 grades Haddam-Killingworth Middle School an A-. The grade compares the school only with Connecticut public middle schools, because each state gives its own test.

Among Lower Connecticut River Valley Planning Region residents, the median household income is $104,428, 46% of adults hold a bachelor's degree or higher, and about 4% of residents live below the federal poverty line. Haddam-Killingworth Middle School is one of 57 public schools in the county.

The nearest public school is Haddam-Killingworth Intermediate School, at less than a tenth of a mile. Inside a five-mile radius, there are 5 other public schools.

Under the NCES locale system, Haddam-Killingworth Middle School is Rural: Fringe.

Enrollment was essentially flat over 4 years: 433 in 2020-21, 423 in 2024-25. In 2020-21, the student-to-teacher ratio was 12.7:1; by 2024-25 it was 11.3:1.

Discussions about Haddam-Killingworth Middle School may include school events, clubs, and volunteer needs. Questions from prospective families are welcome too.

Lower Connecticut River Valley Planning Region at a glance

View full county profile
Population
175,822
Census ACS
Median income
$104,428
Household, ACS
Bachelor's+
46%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
57
19,075 students

Quick facts

School name
Haddam-Killingworth Middle School
District
Regional School District 17
Address
451 Route 81, Killingworth, CT 06419
Phone
(860) 663-1241
County
Lower Connecticut River Valley Planning Region
Level
Middle
Grade range
06–08
Total enrollment
423
Teachers (FTE)
38
Student–teacher ratio
11.3:1
Free and reduced lunch
66 (16%)
Locale
41-Rural: Fringe
NCES ID
090353901201
Charter school
No
Virtual school
No

Related schools

Other schools in Regional School District 17
Other schools in Killingworth
Nearby schools

Frequently asked questions

About Haddam-Killingworth Middle School
What is the total enrollment at Haddam-Killingworth Middle School?
Haddam-Killingworth Middle School enrolls approximately 423 students in grades 06-08.
What age range does Haddam-Killingworth Middle School serve?
Haddam-Killingworth Middle School serves students from grade 06 through grade 08.
How many students per teacher at Haddam-Killingworth Middle School?
Approximately 11.3:1 students per teacher at Haddam-Killingworth Middle School.
How diverse is Haddam-Killingworth Middle School?
Haddam-Killingworth Middle School reports a student body of 89% White, 5% Hispanic, 2% Black, 1% Asian, 3% Two or more.
Is Haddam-Killingworth Middle School public or private?
Haddam-Killingworth Middle School is a public K-12 school, overseen by Regional School District 17.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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