How are homes heated in Mercer Island, WA?

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

Utility gas is the most common heating fuel in Mercer Island, used by 58.2% (±3.6 points) of occupied homes (2020–2024 American Community Survey).

37.9% heat with electricity.

1.2% heat with fuel oil or kerosene.

Figures last updated on November 12, 2026.

Utility gas: 58.2% (±3.6 points)
Electricity: 37.9%
Fuel oil, kerosene: 1.2%

Heating fuel in Mercer Island

Occupied housing units by house heating fuel, 2020–2024
Fuel used most	Mercer Island	King County	Washington	United States
Utility gas	58.2% (±3.6 points)	39.9%	33.0%	46.5%
Fuel oil, kerosene, etc.	1.2% (±0.7 points)	2.2%	1.3%	3.9%
Electricity	37.9% (±3.5 points)	54.5%	58.6%	41.3%
Bottled or tank gas (propane)	1.0% (±0.6 points)	1.4%	3.0%	4.9%
Wood	0.0% (±0.4 points)	0.6%	2.8%	1.4%
Solar energy	0.3% (±0.3 points)	0.2%	0.2%	0.3%
Coal or coke	0.0% (±0.4 points)	0.0%	0.0%	0.1%
Other fuel	0.7% (±0.5 points)	0.4%	0.4%	0.5%
No fuel used	0.7% (±0.7 points)	0.9%	0.6%	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 Mercer Island, the share of homes heating with fuel oil is lower than in King County (2.2%).

It is not measurably different from Washington (1.3%).

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

In Mercer Island, the share of homes heating with electricity is lower than in King County (54.5%).

It is also lower than in Washington (58.6%).

It is not measurably different from the national figure (41.3%).

Homes heated by electricity in places near Mercer Island

Nearest places with a published estimate, compared with Mercer Island
Place	Distance	Homes heated by electricity	Compared with this place
Mercer Island	—	37.9% (±3.5 points)	—
Beaux Arts Village	2.0 mi	18.6% (±10.7 points)	Lower
Newcastle	3.8 mi	49.0% (±5.5 points)	Higher
Bellevue	4.2 mi	52.0% (±1.6 points)	Higher
Medina	4.4 mi	19.6% (±5.0 points)	Lower
Clyde Hill	4.6 mi	14.5% (±4.8 points)	Lower
Bryn Mawr-Skyway	4.8 mi	56.5% (±5.4 points)	Higher
Boulevard Park	5.2 mi	76.5% (±10.2 points)	Higher
Hunts Point	5.5 mi	27.4% (±11.3 points)	Not measurably different

Nearby places with a measurably lower figure: Beaux Arts Village, WA (18.6%), Medina, WA (19.6%), Clyde Hill, WA (14.5%).

Nearby places with a measurably higher figure: Newcastle, WA (49.0%), Bellevue, WA (52.0%), Bryn Mawr-Skyway, WA (56.5%).

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

Homes heated by fuel oil across King County, place by place

Rank	Place	Homes heated by fuel oil
17	Maple Heights-Lake Desire	3.1% (±2.5 points)
18	Seattle	2.9% (±0.2 points)
19	Tukwila	2.4% (±1.2 points)
20	Medina	1.9% (±1.9 points)
21	East Renton Highlands	1.4% (±1.1 points)
22	Fairwood (King County)	1.3% (±0.9 points)
23	Mercer Island	1.2% (±0.7 points)
24 (tie)	Kenmore	1.1% (±0.8 points)
24 (tie)	Lakeland North	1.1% (±0.8 points)
24 (tie)	North Bend	1.1% (±1.7 points)
27	Lakeland South	1.0% (±1.0 points)
28 (tie)	Auburn	0.9% (±0.4 points)
28 (tie)	Yarrow Point	0.9% (±1.2 points)

Showing 13 of 59 places in King County, 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 Mercer Island

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

Utility gas is the most common heating fuel in Mercer Island, used by 58.2% of occupied homes (2020–2024 American Community Survey).

How many homes in Mercer Island heat with oil?

1.2% (±0.7 points) of occupied homes in Mercer Island use fuel oil or kerosene as their main heating fuel.

How many homes in Mercer Island have electric heat?

37.9% (±3.5 points) of occupied homes in Mercer Island heat mainly with electricity, which includes heat pumps.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Mercer Island city, Washington

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 Mercer Island city, Washington (place:45005, in state:53).

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.