State data
South Dakota electricity and gas prices
South Dakota's average residential electricity rate is 12.6¢/kWh,below the national average by 21%. Gasoline averages $3.05/gallon, below the national average by 7%. That ranks South Dakota #15 of 51 for cheapest electricity.
Data last updated: 2026-01-01. Sources: U.S. Energy Information Administration (EIA), state average residential electricity price; AAA, state average regular gasoline price.
Electricity rate
12.6¢/kWh
Gasoline price
$3.05/gal
Example: 12,000 miles a year in South Dakota
A gas car at 28 MPG driving 12,000 miles a year in South Dakota spends about $1,307 on gasoline. An EV at 3.5 mi/kWh charging at home over the same distance spends about $432 on electricity — a difference of $875 a year.
Run your own numbers for South Dakota in the full calculator →
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