Electricity and gas prices in South Dakota

Households in South Dakota paid an average of 15.36¢ per kilowatt-hour for electricity in June 2026, and $15.26 per thousand cubic feet of natural gas in June 2026. That is the 33rd highest electricity price of the fifty states and DC.

What heat costs here

Dollars per million BTU delivered into the house — the only figure that compares a heat pump with a furnace, and the only one that needs no assumption about your house.

Gas furnace, 95% AFUE$15.49
Heat pump at COP 3.0$15.01
Heat pump at COP 2.0$22.51
Electric resistance$45.02

Which certified heat pumps hold their capacity at 5 °F in South Dakota

Five years of prices

July 202112.83¢
October 202112.67¢
January 202210.96¢
April 202211.96¢
July 202213.00¢
October 202213.18¢
January 202311.19¢
April 202311.92¢
July 202313.30¢
October 202313.05¢
January 202411.33¢
April 202412.67¢
July 202413.53¢
October 202413.66¢
January 202512.08¢
April 202513.37¢
July 202514.52¢
October 202514.09¢
January 202613.60¢
April 202614.52¢

Who sells electricity in South Dakota

Utilities reporting at least 1,000 residential customers. The price column is derived — total residential revenue divided by total residential sales in EIA’s 2024 annual survey — not a tariff, and not this month’s rate.

Utility	Ownership	Residential customers	Derived from the 2024 survey
Northern States Power Co - Minnesota	Investor Owned	92,204	13.87¢
Adjustment 2024		85,708	12.40¢
Black Hills Power, Inc.	Investor Owned	60,951	14.37¢
Northwestern Energy - (Sd)	Investor Owned	51,467	12.56¢
Sioux Valley Sw Elec Coop	Cooperative	22,213	12.94¢
Southeastern Electric Coop Inc. - (Sd)	Cooperative	20,160	12.41¢
West River Electric Assn Inc.	Cooperative	18,423	14.25¢
Watertown Municipal Utilities	Municipal	11,633	9.30¢
City Of Brookings - (Sd)	Municipal	10,544	11.12¢
Black Hills Electric Coop, Inc.	Cooperative	9,227	14.76¢
Otter Tail Power Co	Investor Owned	9,048	10.93¢
Central Electric Coop, Inc. - (Sd)	Cooperative	6,483	13.64¢
Montana-Dakota Utilities Co	Investor Owned	6,367	14.59¢
City Of Pierre - (Sd)	Municipal	6,126	10.65¢
Northern Electric Coop, Inc.	Cooperative	5,757	11.29¢
Rosebud Electric Coop Inc.	Cooperative	4,856	10.63¢
Midamerican Energy Co	Investor Owned	4,236	8.68¢
Dakota Energy Coop Inc.	Cooperative	3,224	15.30¢
City Of Madison - (Sd)	Municipal	2,802	11.49¢
City Of Volga - (Sd)	Municipal	1,075	12.80¢
Nebraska Public Power District	Political Subdivision	1,044	9.73¢

Get told when this changes

A short note each month when EIA publishes new prices for South Dakota.

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Prices: EIA Electric Power Monthly and Natural Gas Monthly, residential sector. Utility figures: EIA-861 annual survey, data year 2024. Both public domain.