Residential electricity prices in Mercer Island, WA in May 2025 averaged approximately 13.67 cents per kilowatthour (¢/kWh), which was about 22% less than the national average rate of 17.47 ¢/kWh (May 2025). [1]
→ Electricity rates listed as zero are not currently available.
See how electricity costs in Mercer Island differ from the average electricity costs for the U.S. overall. [1]
On a year-over-year basis - from April 2024 to April 2025 - residential electricity prices in Mercer Island increased approximately 10%, from 11.82 ¢/kWh to 13.03 ¢/kWh. [1]
→ Electricity rates listed as zero are not currently available.
Residential natural gas prices in Mercer Island in May 2025 averaged 0.00 dollars per thousand cubic feet ($/Mcf), which was approximately 100% less than the national average rate of 19.18 $/Mcf (May 2025). [2]
→ Natural gas prices listed as zero are not currently available.
See the chart below to see a comparison of Mercer Island natural gas prices against U.S. average prices. Compare Mercer Island natural gas costs to overall U.S. average costs. [2]
On a year-over-year basis, residential natural gas prices in Mercer Island (Washington) increased approximately 13%, from 16.10 $/Mcf (April 2024) to 18.17 $/Mcf (April 2025). [2]
→ Natural gas prices listed as zero are not currently available.
The city of Mercer Island (Washington) has an average annual solar radiation value of 3.91 kilowatt hours per square meter per day (kWh/m2/day). Compare Mercer Island values to both low and high values in the U.S. overall: [3]
→ Solar radiation values listed as zero are not currently available.
See the chart below for a comparison of Mercer Island solar radiation levels against other areas in the U.S. Compare Mercer Island levels against both 1) low average solar radition levels (WA) and also 2) high average solar radiation levels (NV). [3]
→ k/m/d: kilowatt hours per square meter per day.
→ Solar radiation values listed as zero are not currently available.
Households in the United States have benefited from falling energy prices in recent years, which has driven down the cost of living.
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Penn State researchers recently examined microgrids and discovered that they may not always be a wise economic move for communities.
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Through the analysis of publicly available data filed by electricity suppliers, the CT OCC discovered that electricity customers overpaid by $58 million in 2015.
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The city of Mercer Island, WA in King County has an approximate population of 22,699. [4]
To learn more about utility rates & usage in Mercer Island, WA, or for other information related to utilities in Mercer Island, visit the U.S. Energy Information Administration.
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