Commercial electricity rates in South Dakota

What businesses in South Dakota actually paid per kilowatt-hour, from EIA's monthly utility filings. Updated monthly.

The last 36 months

Range over the period shown: 9.85¢ to 12.17¢ per kWh. Each point is a monthly state average, not an offered rate.

South Dakota by the numbers

How commercial compares with other sectors

All figures are August 2026 averages for South Dakota.

Commercial customers in South Dakota pay 23% less per kWh than households there. Nationally the commercial price sits 20% below residential, so the gap here is wider than usual.

What this costs a typical account

The average commercial account in South Dakota used 6,295 kWh in August 2026. At 11.71¢ per kWh that is about $737 for the month — computed from EIA totals, so it is the average account, mixing a large facility with a corner shop.

How the price has moved

Over the 36 months to August 2026, South Dakota's commercial price rose 12.2%, from 10.44¢ in September 2023 to 11.71¢. The high point was 12.17¢ in July 2026 and the low 9.85¢ in February 2025 — a spread of 24% between the cheapest and dearest month, which is typical for a state-level average.

Across the same period the dearest month on average was July (11.48¢) and the cheapest December (10.24¢), a seasonal swing of 12%.

South Dakota against its region

South Dakota is in EIA's West North Central division, where the commercial average was 12.07¢ in August 2026. South Dakota is 3% below that, and 3 of 7 on price within the region.

Others in the region: North Dakota, Nebraska, Kansas, Missouri, Minnesota, Iowa.

States priced near South Dakota

Source

EIA Electric Power Monthly, retrieved 2026-11-02 · methodology · all 51 states