Residential electricity prices in Castlewood, SD in May 2026 averaged approximately 15.73 cents per kilowatthour (¢/kWh), which was about 15% less than the national average rate of 18.44 ¢/kWh (May 2026). [1]
→ Electricity rates listed as zero are not currently available.
See how electricity costs in Castlewood differ from the average electricity costs for the U.S. overall. [1]
On a year-over-year basis - from April 2025 to April 2026 - residential electricity prices in Castlewood increased approximately 9%, from 13.37 ¢/kWh to 14.52 ¢/kWh. [1]
→ Electricity rates listed as zero are not currently available.
Residential natural gas prices in Castlewood in April 2026 averaged 10.86 dollars per thousand cubic feet ($/Mcf), which was approximately 40% less than the national average rate of 18.17 $/Mcf (April 2026). [2]
→ Natural gas prices listed as zero are not currently available.
See the chart below to see a comparison of Castlewood natural gas prices against U.S. average prices. Compare Castlewood natural gas costs to overall U.S. average costs. [2]
On a year-over-year basis, residential natural gas prices in Castlewood (South Dakota) increased approximately 11%, from 10.09 $/Mcf (March 2025) to 11.23 $/Mcf (March 2026). [2]
→ Natural gas prices listed as zero are not currently available.
Sorry, Castlewood solar data is not currently available. Please check back later.
See the chart below for a comparison of Castlewood solar radiation levels against other areas in the U.S. Compare Castlewood 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 Castlewood, SD in Hamlin County has an approximate population of 627. [4]
To learn more about utility rates & usage in Castlewood, SD, or for other information related to utilities in Castlewood, visit the U.S. Energy Information Administration.
Approximately 13 percent of total U.S. residential electricity consumption in 2011 was for lighting.
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