How are homes heated in Killingworth, CT?

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

Fuel oil or kerosene is the most common heating fuel in Killingworth, used by 71.0% (±6.9 points) of occupied homes (2020–2024 American Community Survey).

0.5% heat with utility gas.

2.9% heat with electricity.

Figures last updated on November 12, 2026.

Utility gas: 0.5% (±0.8 points)
Electricity: 2.9%
Fuel oil, kerosene: 71.0%

Heating fuel in Killingworth

Occupied housing units by house heating fuel, 2020–2024
Fuel used most	Killingworth	Lower Connecticut River Valley Planning Region	Connecticut	United States
Utility gas	0.5% (±0.8 points)	14.8%	36.3%	46.5%
Fuel oil, kerosene, etc.	71.0% (±6.9 points)	51.7%	36.3%	3.9%
Electricity	2.9% (±2.5 points)	18.9%	18.4%	41.3%
Bottled or tank gas (propane)	22.5% (±5.6 points)	9.4%	5.8%	4.9%
Wood	1.6% (±1.5 points)	2.7%	1.4%	1.4%
Solar energy	0.5% (±0.9 points)	0.4%	0.2%	0.3%
Coal or coke	0.0% (±1.7 points)	0.1%	0.0%	0.1%
Other fuel	0.9% (±1.0 points)	1.3%	1.0%	0.5%
No fuel used	0.0% (±1.7 points)	0.9%	0.5%	1.2%

The survey asks which fuel is used most to heat the home, so a home with a heat pump and an oil backup is counted once, under the one it uses most.

In Killingworth, the share of homes heating with fuel oil is higher than in Lower Connecticut River Valley Planning Region (51.7%).

It is also higher than in Connecticut (36.3%).

It is higher than the national figure (3.9%).

In Killingworth, the share of homes heating with electricity is lower than in Lower Connecticut River Valley Planning Region (18.9%).

It is also lower than in Connecticut (18.4%).

It is lower than the national figure (41.3%).

Homes heated by electricity in places near Killingworth

Nearest places with a published estimate, compared with Killingworth
Place	Distance	Homes heated by electricity	Compared with this place
Killingworth	—	2.9% (±2.5 points)	—
Madison	3.2 mi	15.3% (±3.3 points)	Higher
Deep River	5.3 mi	24.9% (±8.4 points)	Higher
Chester	5.4 mi	21.8% (±6.0 points)	Higher
Clinton	6.0 mi	19.0% (±2.8 points)	Higher
Chester Center	6.6 mi	19.5% (±9.6 points)	Higher
Madison Center	6.6 mi	24.2% (±8.6 points)	Higher
Guilford	7.1 mi	15.1% (±3.8 points)	Higher
Westbrook	7.1 mi	17.1% (±4.7 points)	Higher

Nearby places with a measurably higher figure: Madison, CT (15.3%), Deep River, CT (24.9%), Chester, CT (21.8%).

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

Homes heated by fuel oil across Lower Connecticut River Valley Planning Region, place by place

Rank	Place	Homes heated by fuel oil
1	Durham	77.8% (±7.0 points)
2	Haddam	76.7% (±4.0 points)
3	Killingworth	71.0% (±6.9 points)
4	Portland	68.8% (±5.4 points)
5	East Haddam	67.8% (±6.2 points)
6	Lyme	66.5% (±8.9 points)
7	Old Lyme	64.6% (±4.8 points)
8	East Hampton	58.8% (±5.0 points)
9	Essex	58.0% (±6.7 points)

Showing 9 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.

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Questions about Killingworth

What is the most common way to heat a home in Killingworth?

Fuel oil or kerosene is the most common heating fuel in Killingworth, used by 71.0% of occupied homes (2020–2024 American Community Survey).

How many homes in Killingworth heat with oil?

71.0% (±6.9 points) of occupied homes in Killingworth use fuel oil or kerosene as their main heating fuel.

How many homes in Killingworth have electric heat?

2.9% (±2.5 points) of occupied homes in Killingworth heat mainly with electricity, which includes heat pumps.

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_0063PE, DP04_0063PM, DP04_0066PE, DP04_0066PM, DP04_0065PE, DP04_0065PM, DP04_0064PE, DP04_0064PM, DP04_0068PE, DP04_0068PM, DP04_0069PE, DP04_0069PM, DP04_0067PE, DP04_0067PM, DP04_0070PE, DP04_0070PM, DP04_0071PE, DP04_0071PM

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.