South Dakota

Residential electricity rates · latest Apr 2026

Avg monthly bill

$129

⚾ The monthly tab

Typical residential bill — $8 higher than the 2019 average.

Residential rate

14.5¢

⚾ Price per kWh

Cents per kilowatt-hour. +24% vs. the 2019 average.

National rank

43rd

⚾ League rank

Fastest-rising residential rate since 2019, of 51 states.

Home vs. industry

14.5¢ / 9.2¢

⚾ Home vs. away

Homes pay 14.5¢/kWh; large industry pays 9.2¢/kWh — 59% more for households.

Your rate vs. grid demand

Southwest Power Pool demand · South Dakota rate

Amber = the grid region's average demand (GW, left). Red = the state's residential rate (¢/kWh, right). The rate line ends a couple months early because EIA reports retail data on a lag.

Homes vs. industry

South Dakota · ¢/kWh

What households pay (red) vs. large industrial users (dashed). The shaded band is the gap — the affordability story behind data-center load growth.

Most of South Dakota's power runs through Southwest Power Pool, where grid demand rose 12% over the same period — a signature of the always-on, data-center-driven load reshaping the grid.

EIA derives the rate as revenue ÷ electricity sold — a proxy, not a surveyed tariff. Rates rise for many reasons (fuel costs, grid upgrades, storms), not data centers alone, so this shows correlation, not causation. Note the rate is a statewide residential average while the demand is the regional grid operator's — related, but not the same geography.