What kinds of homes are in Killingworth, CT?

Name: Types of homes in Killingworth, CT, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Killingworth, CT has 2,775 (±210) homes (2020–2024 American Community Survey).

That is about 79 homes per square mile of land.

92.2% are detached single-family houses.

0.0% are in buildings of two to four units.

0.4% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 2,775 (±210)
Detached houses: 92.2%
2–4 unit buildings: 0.0%
5+ unit buildings: 0.4%

Homes in Killingworth by building size

Housing units by units in structure, 2020–2024
Building type	Killingworth	Lower Connecticut River Valley Planning Region	Connecticut	United States
Single-family, detached	92.2% (±3.2 points)	72.4%	58.6%	61.3%
Single-family, attached (townhouse, rowhouse)	1.7% (±1.9 points)	4.0%	6.5%	6.2%
2 units	0.0% (±1.5 points)	5.2%	7.5%	3.4%
3 or 4 units	0.0% (±1.5 points)	4.7%	8.1%	4.3%
5 to 9 units	0.0% (±1.5 points)	3.8%	4.9%	4.5%
10 to 19 units	0.4% (±0.7 points)	2.8%	3.5%	4.3%
20 or more units	0.0% (±1.5 points)	6.1%	10.2%	10.3%
Mobile home	5.7% (±2.4 points)	1.0%	0.7%	5.6%
Boat, RV, van, etc.	0.0% (±1.5 points)	0.0%	0.0%	0.1%

In Killingworth, the share of homes in buildings of five or more units is lower than in Lower Connecticut River Valley Planning Region (12.7%).

It is also lower than in Connecticut (18.6%).

It is lower than the national figure (19.1%).

Homes in buildings of 5 or more units in places near Killingworth

Nearest places with a published estimate, compared with Killingworth
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Killingworth	—	0.4% (±2.2 points)	—
Madison	3.2 mi	2.4% (±1.3 points)	Not measurably different
Deep River	5.3 mi	18.7% (±8.4 points)	Higher
Chester	5.4 mi	6.8% (±4.0 points)	Higher
Clinton	6.0 mi	6.4% (±2.1 points)	Higher
Chester Center	6.6 mi	3.5% (±7.1 points)	Not measurably different
Madison Center	6.6 mi	12.3% (±8.6 points)	Higher
Guilford	7.1 mi	7.5% (±1.9 points)	Higher
Westbrook	7.1 mi	3.7% (±2.4 points)	Higher

Nearby places with a measurably higher figure: Deep River, CT (18.7%), Chester, CT (6.8%), Clinton, CT (6.4%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Homes in buildings of 5 or more units across Lower Connecticut River Valley Planning Region, place by place

Rank	Place	Homes in buildings of 5 or more units
7	Old Saybrook	5.0% (±2.1 points)
8	Portland	4.1% (±2.4 points)
9	East Hampton	3.9% (±2.0 points)
10	Westbrook	3.7% (±2.4 points)
11	Haddam	3.1% (±2.5 points)
12	East Haddam	0.5% (±1.5 points)
13 (tie)	Killingworth	0.4% (±2.2 points)
13 (tie)	Old Lyme	0.4% (±1.0 points)
15 (tie)	Durham	0.0% (±2.4 points)
15 (tie)	Lyme	0.0% (±6.1 points)
15 (tie)	Middlefield	0.0% (±3.5 points)

Showing 11 of 17 places in Lower Connecticut River Valley Planning Region, ranked from highest to lowest.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

What you can do on Seayora in Killingworth

One account for renting, owning, managing and fixing homes, with these figures beside you.

Own or manage a rental?

List it, sign the lease and collect rent online, with the figures for Killingworth beside you.

Create a landlord account · See what landlords get

Looking for a place to rent?

Browse homes for rent near Killingworth, save the ones you like and apply online.

Browse rentals · Create a renter account

Do repairs, renovations or maintenance?

Get found by owners and renters near Killingworth, and send estimates and invoices from your phone.

Join as a pro · Find a pro

Questions about Killingworth

How many homes are in Killingworth?

Killingworth, CT has an estimated 2,775 (±210) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Killingworth houses or apartments?

92.2% are detached houses and 1.7% attached houses, while 0.4% are in buildings of two or more units.

How many two-family and small multifamily homes are in Killingworth?

0.0% of homes in Killingworth are in buildings of two to four units, the small rental buildings that are often owner-occupied.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Killingworth town, Lower Connecticut River Valley Planning Region, Connecticut

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Killingworth town, Lower Connecticut River Valley Planning Region, Connecticut (county subdivision:40710, in state:09 county:130).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0001E, DP04_0001M, DP04_0007PE, DP04_0007PM, DP04_0008PE, DP04_0008PM, DP04_0009PE, DP04_0009PM, DP04_0010PE, DP04_0010PM, DP04_0011PE, DP04_0011PM, DP04_0012PE, DP04_0012PM, DP04_0013PE, DP04_0013PM, DP04_0014PE, DP04_0014PM, DP04_0015PE, DP04_0015PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.