Haddam-Killingworth Middle School

Haddam-Killingworth Middle School is a middle-grades school of low-enrollment scale in Killingworth, Connecticut, part of Regional School District 17, works with 423 students in grades 6 through 8.

Regional School District 17 runs 5 schools in total, collectively educating 1,704 students. Haddam-Killingworth Middle School is one of those campuses.

Looking at the student body, Haddam-Killingworth Middle School records that 89% of students identify as White, making the school strongly White-majority. Other groups include 5% Hispanic, 3% multiracial. The wider county runs roughly 81% White, putting the school's mix considerably more White than the area baseline.

In terms of school funding signals, Haddam-Killingworth Middle School lists 38 full-time-equivalent teachers, putting the student-to-teacher ratio at about 11.3:1. That tracks the state average closely. An estimated 16% of students are eligible for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. That share is lower than Lower Connecticut River Valley Planning Region's rate of about 32%.

Across the wider county, community-level numbers for Lower Connecticut River Valley Planning Region indicate median household income runs about $104,428, roughly 46% of adults have completed at least a four-year degree, and roughly 4% of residents live below the federal poverty line. Across Lower Connecticut River Valley Planning Region's 57 public schools (combined enrollment of about 19,075 students), Haddam-Killingworth Middle School is one campus in the mix.

The closest other public school is Haddam-Killingworth Intermediate School, roughly 0.0 miles away. Within five miles, there are 5 other public schools.

The campus sits in a countryside setting.

Trend over the last 7 years. Over the past 7-year window, the student count shrank 36%: 663 students in 2018 compared to 423 in 2025.

On the community side, the page collects discussion, questions, and updates around sports schedules, lunch menu changes, and school spirit week. Posting is open to anyone connected to the school.