South Dakota electricity and natural gas rates
Electricity
15.73¢
per kWh
Natural gas
$1.06
per therm
Residential sector, US Energy Information Administration, 2026-05. Updated monthly.
How South Dakota compares
At 15.73¢ per kWh, South Dakota is below the national average of 19.41¢, making it the 21st cheapest of the 51 states we track.
What a typical South Dakota household uses
Electricity a month
981 kWh
Bill a month
$138
Households in South Dakota use 14% more electricity than the national average and pay 8% less than average. Cheap power absorbs most of that: the meter turns faster here, but at 15.73¢ each unit costs less than it does nationally. The climate pulls the other way here: 7,500 heating degree days against 800 cooling ones, so how a home is heated matters more than how it is cooled.
Averaged over twelve months across 448,859 residential accounts in South Dakota. Source: EIA.
What this means for heating
South Dakota sees around 165 freezing nights a year. Whether a heat pump beats a furnace here depends on the gap between those two prices above — not on the equipment.
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