Electricity rates in South Dakota
Updated 2026-10-21 with EIA data through July 2026
Homes in South Dakota paid an average of 14.20¢ per kWh over the last 12 months, up from 11.47¢ in 2016. Businesses paid 11.36¢ and industry 9.12¢. Electricity is regulated, so your utility is set by your address.
What things cost to run in South Dakota
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South Dakota electricity price trend
Annual average residential price, 2010–2025. Since 2016, prices have risen +17%.
Power outages in South Dakota right now
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Electric utilities in South Dakota
66 utilities serve homes in South Dakota. Rates are average residential revenue per kWh, so they include fixed charges. Click a utility for rate plans, outage history and its service map.
Click or tap a county to see the electric companies that serve it.
| Utility | Type | Homes served | Rate | Avg bill | Outage min/yr |
|---|---|---|---|---|---|
| Northern States Power Co - Minnesota | Investor-owned | 94K | 14.81¢ | $114 | 160 |
| Black Hills Power | Investor-owned | 68K | 15.36¢ | $108 | 541 |
| NorthWestern Energy | Investor-owned | 52K | 14.13¢ | $133 | 120 |
| Sioux Valley SW Electric Co-op | Electric cooperative | 23K | 14.90¢ | $188 | 59 |
| Southeastern Electric Co-op | Electric cooperative | 21K | 13.84¢ | $161 | 24 |
| West River Electric Association | Electric cooperative | 19K | 16.05¢ | $144 | 24 |
| Watertown Municipal Utilities | Municipal | 12K | 9.44¢ | $84 | 4 |
| City of Brookings | Municipal | 11K | 11.00¢ | $97 | 13 |
| Black Hills Electric Co-op | Electric cooperative | 9,415 | 15.56¢ | $175 | 2,487 |
| Otter Tail Power Co. | Investor-owned | 9,094 | 11.63¢ | $126 | 191 |
| Butte Electric Co-op | Electric cooperative | 7,472 | 16.12¢ | $208 | 48 |
| Moreau-Grand Electric Co-op | Electric cooperative | 7,161 | 14.69¢ | $175 | — |
| West Central Electric Co-op | Electric cooperative | 6,815 | 14.07¢ | $228 | 100 |
| LaCreek Electric Association | Electric cooperative | 6,600 | 13.18¢ | $204 | 130 |
| Central Electric Co-op | Electric cooperative | 6,515 | 16.00¢ | $246 | — |
| Montana-Dakota Utilities Co. | Investor-owned | 6,348 | 13.79¢ | $118 | 212 |
| City of Pierre | Municipal | 6,183 | 11.31¢ | $102 | — |
| Northern Electric Co-op | Electric cooperative | 5,823 | 12.82¢ | $268 | 73 |
| Grand Electric Co-op | Electric cooperative | 5,257 | 16.48¢ | $216 | — |
| City of Vermillion | Municipal | 5,087 | 12.11¢ | $149 | — |
| Rosebud Electric Co-op | Electric cooperative | 4,911 | 12.65¢ | $146 | 141 |
| Cherry-Todd Electric Co-op | Electric cooperative | 4,892 | 11.10¢ | $207 | — |
| MidAmerican Energy Co. | Investor-owned | 4,236 | 9.25¢ | $103 | 399 |
| Bon Homme Yankton El Association | Electric cooperative | 4,190 | 13.59¢ | $263 | 34 |
| Clay-Union Electric Corp. | Electric cooperative | 3,917 | 13.15¢ | $219 | — |
| Whetstone Valley Electric Co-op | Electric cooperative | 3,698 | 13.51¢ | $298 | 56 |
| Dakota Energy Co-op | Electric cooperative | 3,231 | 17.27¢ | $292 | — |
| City of Sioux Falls | Municipal | 2,959 | 11.38¢ | $341 | — |
| City of Madison | Municipal | 2,818 | 12.95¢ | $137 | — |
| Charles Mix Electric Association | Electric cooperative | 2,661 | 14.57¢ | $301 | — |
| Cam Wal Electric Co-op | Electric cooperative | 2,603 | 15.19¢ | $296 | — |
| Oahe Electric Co-op | Electric cooperative | 2,335 | 11.18¢ | $180 | — |
| Winner Municipal Utility | Municipal | 1,861 | 13.44¢ | $225 | — |
| Union County Electric Co-op | Electric cooperative | 1,685 | 16.89¢ | $249 | 248 |
| City of Fort Pierre | Municipal | 1,487 | 9.68¢ | $167 | — |
| City of Flandreau | Municipal | 1,430 | 9.80¢ | $254 | — |
| City of Beresford | Municipal | 1,261 | 12.66¢ | $267 | — |
| City of Volga | Municipal | 1,094 | 12.79¢ | $119 | — |
| Nebraska Public Power District | Public power district | 1,047 | 10.74¢ | $132 | — |
| City of Elk Point | Municipal | 1,044 | 11.38¢ | $149 | — |
| City of Miller | Municipal | 982 | 11.84¢ | $208 | — |
| Kingsbury Electric Co-op | Electric cooperative | 910 | 16.13¢ | $424 | — |
| Douglas Electric Co-op | Electric cooperative | 823 | 14.63¢ | $371 | — |
| City of Groton | Municipal | 737 | 10.62¢ | $192 | — |
| City of Parker | Municipal | 690 | 15.71¢ | $191 | — |
| City of Tyndall | Municipal | 647 | 12.04¢ | $216 | — |
| City of Arlington | Municipal | 631 | 13.51¢ | $185 | — |
| City of Howard | Municipal | 628 | 11.22¢ | $249 | — |
| City of Wessington Springs | Municipal | 614 | 12.40¢ | $185 | — |
| City of Aurora | Municipal | 566 | 11.45¢ | $106 | — |
| City of Onida | Municipal | 494 | 11.25¢ | $137 | — |
| City of Plankinton | Municipal | 473 | 11.41¢ | $189 | — |
| City of Burke | Municipal | 464 | 12.30¢ | $144 | — |
| City of Estelline | Municipal | 430 | 10.33¢ | $148 | — |
| City of Colman | Municipal | 402 | 12.23¢ | $265 | — |
| City of Big Stone City | Municipal | 401 | 5.03¢ | $145 | — |
| City of McLaughlin | Municipal | 334 | 11.15¢ | $159 | — |
| City of White | Municipal | 309 | 14.98¢ | $154 | — |
| City of Bryant | Municipal | 289 | 14.84¢ | $179 | — |
| City of Hecla | Municipal | 283 | 14.48¢ | $123 | — |
| City of Faith | Municipal | 276 | 12.26¢ | $182 | — |
| Town of Langford | Municipal | 191 | 16.07¢ | $219 | — |
| Town of Pickstown | Municipal | 182 | 10.14¢ | $137 | — |
| City of Badger | Municipal | 83 | 11.98¢ | $180 | — |
| Southeast Electric Co-op | Electric cooperative | 24 | 16.27¢ | $99 | — |
| Niobrara Electric Association | Electric cooperative | 16 | 19.50¢ | $132 | — |
South Dakota vs. neighboring states
Energy costs at a glance
| Natural gas (homes) | $1.22/therm |
| Gasoline (regular) | $4.14/gal |
| Driving cost: EV vs. gas | 4.4¢ vs. 15¢/mi |
| Solar output (1 kW, Sioux Falls) | 1,409 kWh/yr |
| Avg. outage time (2025) | 4 hr 17 min/yr |
| Commercial rate | 11.36¢ |
| Industrial rate | 9.12¢ |
What appliances cost to run in South Dakota
| Appliance | Per month | Per year | vs. U.S. |
|---|---|---|---|
| Space heater | $23.42 | $117 | −$31 |
| Central air conditioner | $81.69 | $408 | −$109 |
| Refrigerator | $5.92 | $71 | −$19 |
| Electric car | $52.77 | $633 | −$169 |
| Electric clothes dryer | $9.74 | $117 | −$31 |
| Electric water heater | $53.25 | $639 | −$171 |
| Hot tub | $35.50 | $426 | −$114 |
| TV | $1.77 | $21 | −$6 |
| Pool pump (single-speed) | $58.78 | $294 | −$78 |
| Heat pump | $145 | $726 | −$194 |
Electricity rates by city in South Dakota
- Sioux Falls
- Rapid City
- Aberdeen
- Brookings
- Watertown
- Mitchell
- Yankton
- Pierre
- Huron
- Spearfish
- Vermillion
- Brandon
- Box Elder
- Rapid Valley
- Ellsworth Air Force Base
- Madison
- Sturgis
- Belle Fourche
- Harrisburg
- Tea
- Dell Rapids
- Hot Springs
- Mobridge
- Canton
- Pine Ridge
- Milbank
- Hartford
- Lead
- Blackhawk
- Winner
- North Sioux City
- Dakota Dunes
- Colonial Pine Hills
- Sisseton
- Chamberlain
- Redfield
- Flandreau
- North Spearfish
- Lennox
- Summerset
- Fort Pierre
- Elk Point
- Beresford
- North Eagle Butte
- Springfield
- Custer
- Volga
- Webster
- Wagner
- Rosebud
- Groton
- Parkston
- Miller
- Crooks
- Salem
- Eagle Butte
- Oglala
- Freeman
- Fort Thompson
- Clear Lake
- Platte
- Deadwood
- Gregory
- Britton
- Lemmon
- Mission
- Garretson
- Gettysburg
- Baltic
- De Smet
- Porcupine
- Martin
- Clark
- Tyndall
Frequently asked questions
What is the average electricity rate in South Dakota?
The average residential rate in South Dakota was 14.20¢ per kWh over the 12 months ending July 2026. That is 21% below the U.S. average of 17.99¢. In July 2026 alone it was 15.37¢, +5.9% from a year earlier.
What is the average electric bill in South Dakota?
About $140 a month. The average South Dakota home uses 984 kWh a month (EIA 2025), and we priced that at the current average rate. Bills vary with your utility, home size, heating type and season.
Is electricity expensive in South Dakota?
South Dakota ranks 16th cheapest of 51 (50 states plus DC) for residential electricity. That is near the middle of the pack.
Can I choose my electricity provider in South Dakota?
No. South Dakota homes buy electricity from the utility that serves their address: an investor-owned utility, electric cooperative or municipal utility.
Which electric company is cheapest in South Dakota?
Among utilities with at least 1,000 residential customers, MidAmerican Energy Co. has the lowest average rate at 9.25¢/kWh. The highest is Dakota Energy Co-op at 17.27¢. Most homes can't switch utilities, since your address determines which one serves you.
How reliable is the power grid in South Dakota?
In 2025, the average South Dakota customer was without power for 4 hr 17 min (SAIDI, including major storms) across about 1.2 outages. Excluding major event days it was 63 min. Figures are customer-weighted across utilities that report to EIA.
Sources: EIA-861M monthly sales and revenue (through July 2026), EIA-861 2025 utility data, EIA fuel prices, NREL PVWatts. Methodology.