Killingly School District, Connecticut

Killingly School District is a unified school district in Northeastern Connecticut Planning Region, Connecticut, for grades Pre-K to 12. About 17,867 people live in it (2020–2024 estimate). It covers 48.3 sq mi (125 km²) of land.

BridgeportStamfordNew Haven
Killingly School District in Connecticut
Killingly School District and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
17,867 ± 21
Grades
Pre-K to 12
Type
Unified school district
County
Northeastern Connecticut Planning Region
Land area
48.3 sq mi (125 km²)
Median household income
$84,350 ± $8,277
Median home value
$288,600 ± $15,229
Water area
1.52 sq mi (3.93 km²)
State
Connecticut
Census code (GEOID)
0902070
Coordinates (central point)
41.829902, -71.849097

These coordinates mark a central point for the district, not a school or an address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.

Towns, townships and communities in Killingly School District, largest first

  1. Town of Killingly17,867 people
  2. Danielson (borough)4,209 people
  3. Dayville (CDP)452 people

A town, township, city or borough is listed when at least half its land is in the district; a community, when its central point is. Near a district line, an address can belong to the district next door.

Bordering unified school districts, nearest first

  1. Putnam School District5.5 mi north
  2. Plainfield School District9.8 mi south

These share a boundary with Killingly School District. Distances are straight lines between central points.

Before using this answer for enrollment

A district boundary doesn’t decide which school a student attends; the district’s attendance zones and rules do. Confirm the full address and grade with Killingly School District before you rely on it.

See its schools and enrollment on NCES ↗

Find the school district where you are now or find your town or township.