South Dakota electricity prices - 15.36¢/kWh (June 2026)
Residential price, average bill, and the data-center story
- Residential electricity in South Dakota costs 15.36¢/kWh as of - +8.0% year over year, per U.S. Energy Information Administration data.
- The average South Dakota home used 868 kWh that month and paid an average bill of $133.30 (+7.8% vs a year earlier).
- South Dakota has the 33rd-highest residential electricity price of the 50 states and DC - 16% below the U.S. average of 18.34¢/kWh.
Price by sector
| Sector | ¢/kWh (June 2026) | 1-yr change |
|---|---|---|
| Residential | 15.36¢ | +8.0% |
| Commercial | 11.35¢ | +0.6% |
| Industrial | 9.44¢ | +7.6% |
Water
Electricity delivered in South Dakota carries 3.87 liters of water per kilowatt-hour consumed at the power plants supplying it (1.19 L/kWh excluding hydropower reservoir evaporation), against a national average of 4.28. That is below the national figure, and it is a property of the grid here rather than of any one building: a data center drawing 100 GWh a year in South Dakota accounts for about 102.3 million gallons of power-plant water before it cools anything. All states ranked →
A data center's water use is roughly twelve times larger once the water evaporated at its power plants is counted. The Colorado River arithmetic → · how the water numbers work →
All states ranked → · Download South Dakota data (CSV) · Glossary