Killingly
Town in Northeastern Connecticut Planning Region, Connecticut

Killingly is a town in Northeastern Connecticut Planning Region, Connecticut, with 17,752 residents (2020 Census). It sits at 449 ft (137 m) above sea level. The nearest town is Dayville, 2.0 miles NW.
- 17,752residents (2020 Census)
- 449 ftelevation · 137 m
- 48.3 sq miland area · 125.2 km²
- 367 / sq mipopulation density
- 06241main ZIP code (4 in total)
About Killingly
Killingly is a town in Windham County, Connecticut, United States. Killingly is the largest town by population in the Northeastern Connecticut Planning Region. The population was 17,752 at the 2020 census. It consists of the borough of Danielson and the villages of Attawaugan, Ballouville, Dayville, East Killingly, Rogers, and South Killingly.
Text: Wikipedia · CC BY-SA 4.0
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Webcams: Windy.com
Living in Killingly
- Median household income
- $84,350
- Median home value
- $288,600
- Median rent
- $1,044/mo
- Median age
- 39.5
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Map of Killingly
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Open in Google Maps ›Killingly, CT population
Killingly had 17,752 residents in the 2020 Census.
| 2020 Census | 17,752 |
|---|---|
| Density | 367 per sq mi (142 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Killingly at a glance
| State | Connecticut (CT) |
|---|---|
| County | Northeastern Connecticut Planning Region |
| Type | Town |
| Population | 17,752 (2020) |
| Land area | 48.35 sq mi (125.2 km²) |
| Water area | 1.52 sq mi (3.93 km²) |
| Elevation | 449 ft (137 m) |
| Coordinates | 41.8299° N, 71.8491° W |
| ZIP codes | 06241, 06239, 06243, 06263 |
| Official website | killinglyct.gov |
| Census code (GEOID) | 0915040500 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Killingly
- Dayville2.0 mi NW
- Danielson2.3 mi SW
- East Brooklyn3.9 mi SW
- Putnam5.5 mi N
- Brooklyn6.3 mi SW
- Wauregan6.4 mi SW
- Foster, RI6.5 mi SE
- Foster Center, RI6.6 mi SE
- Pomfret6.9 mi W
- Moosup7.9 mi S
- Mechanicsville8.6 mi N
- South Woodstock8.8 mi NW
Straight-line distance between town centers.
Frequently asked questions about Killingly
What county is Killingly in?
Killingly is in Northeastern Connecticut Planning Region, Connecticut.
What is the population of Killingly, CT?
17,752 people lived in Killingly at the 2020 Census.
What is the ZIP code of Killingly, CT?
The main ZIP code is 06241. Other ZIP codes: 06239, 06243, 06263.
What is the elevation of Killingly?
449 feet (137 m) above sea level.
What towns are near Killingly?
Dayville (2.0 mi), Danielson (2.3 mi), East Brooklyn (3.9 mi), Putnam (5.5 mi), Brooklyn (6.3 mi).
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