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South Dakota electric bills: $160/month (August 2026)

Updated with August 2026 data · Editor: Otto Pop · Methodology

$160/month
Average residential electric bill, South Dakota, August 2026
15.15¢/kWh · 1,057 kWh/month · rank 14 of 51 (1 = cheapest)
12-month average: $140/month (12 months to August 2026)
Source: EIA, Aug 2026

South Dakota households paid an average of $160 a month for electricity in August 2026, based on U.S. Energy Information Administration data. That is 14.3% higher than August 2025, and it ranks South Dakota 14th of 51 from the lowest average bill.

How much is the average electric bill in South Dakota?

A South Dakota home used 1,057 kWh in August 2026, below the U.S. average of 1,152 kWh, at 15.15¢/kWh. The average bill was $160. Enter your own numbers below.

Estimated bill: $160 a month, $1,920 a year if every month matched this one

Defaults are the South Dakota averages for August 2026 (EIA). Use changes with the seasons: the actual average bills for the 12 months to August 2026 added up to $1,684. Enter the use and price from your own bill for a personal estimate. EIA's average price already spreads fixed customer charges across every kWh; your utility's own fixed charge and rate plan can differ.

How have South Dakota electricity prices changed?

South Dakota's price was 13.14¢/kWh in September 2021 and was 15.3% higher in August 2026. Five-year range: 10.96¢/kWh (January 2022) to 15.73¢/kWh (May 2026).

Average residential electricity price in South Dakota, last 12 months
12.0¢13.1¢14.1¢15.1¢16.1¢Sep 2025Dec 2025Mar 2026Jun 2026
Show the numbers
Average residential electricity price in South Dakota, last 12 months
MonthValue
Sep 202514.68¢/kWh
Oct 202514.01¢/kWh
Nov 202513.74¢/kWh
Dec 202512.43¢/kWh
Jan 202613.58¢/kWh
Feb 202613.22¢/kWh
Mar 202614.28¢/kWh
Apr 202614.52¢/kWh
May 202615.73¢/kWh
Jun 202615.36¢/kWh
Jul 202615.37¢/kWh
Aug 202615.15¢/kWh

Source: EIA, residential electricity data, Sep 2025–Aug 2026

Average residential electricity price in South Dakota, last 5 years
10.4¢11.9¢13.3¢14.8¢16.3¢Sep 2021Sep 2022Sep 2023Sep 2024Sep 2025
Show the numbers
Average residential electricity price in South Dakota, last 5 years
MonthValue
Sep 202113.14¢/kWh
Oct 202112.67¢/kWh
Nov 202111.94¢/kWh
Dec 202111.50¢/kWh
Jan 202210.96¢/kWh
Feb 202211.20¢/kWh
Mar 202211.25¢/kWh
Apr 202211.96¢/kWh
May 202212.56¢/kWh
Jun 202213.25¢/kWh
Jul 202213.00¢/kWh
Aug 202212.98¢/kWh
Sep 202212.97¢/kWh
Oct 202213.18¢/kWh
Nov 202211.98¢/kWh
Dec 202211.22¢/kWh
Jan 202311.19¢/kWh
Feb 202311.46¢/kWh
Mar 202311.41¢/kWh
Apr 202311.92¢/kWh
May 202313.18¢/kWh
Jun 202313.30¢/kWh
Jul 202313.30¢/kWh
Aug 202313.07¢/kWh
Sep 202313.24¢/kWh
Oct 202313.05¢/kWh
Nov 202312.21¢/kWh
Dec 202311.80¢/kWh
Jan 202411.33¢/kWh
Feb 202411.90¢/kWh
Mar 202412.13¢/kWh
Apr 202412.67¢/kWh
May 202413.43¢/kWh
Jun 202413.96¢/kWh
Jul 202413.53¢/kWh
Aug 202413.64¢/kWh
Sep 202413.84¢/kWh
Oct 202413.66¢/kWh
Nov 202413.27¢/kWh
Dec 202412.27¢/kWh
Jan 202512.03¢/kWh
Feb 202511.78¢/kWh
Mar 202512.69¢/kWh
Apr 202513.31¢/kWh
May 202514.26¢/kWh
Jun 202514.29¢/kWh
Jul 202514.45¢/kWh
Aug 202513.90¢/kWh
Sep 202514.68¢/kWh
Oct 202514.01¢/kWh
Nov 202513.74¢/kWh
Dec 202512.43¢/kWh
Jan 202613.58¢/kWh
Feb 202613.22¢/kWh
Mar 202614.28¢/kWh
Apr 202614.52¢/kWh
May 202615.73¢/kWh
Jun 202615.36¢/kWh
Jul 202615.37¢/kWh
Aug 202615.15¢/kWh

Source: EIA, residential electricity data, Sep 2021–Aug 2026

How does South Dakota compare with other states?

South Dakota ranked 14th of 51, 23.4% lower than the national $209 in August 2026. Iowa averaged $149 and Wyoming $118.

RankStateAvg. bill¢/kWhkWh/month
1Wyoming$11814.43821
2Washington$12014.63819
3Montana$12215.57784
4North Dakota$13013.31979
5Oregon$13515.92847
…
11Iowa$14917.06872
12Nebraska$15513.541,144
13Maine$15732.11489
14South Dakota$16015.151,057
15New Mexico$16216.51983
16Utah$16413.311,230
17Colorado$16717.17973
…
47Oklahoma$25114.821,696
48Alabama$25416.331,555
49Texas$26615.911,670
50Arizona$26915.051,789
51Hawaii$26947.18570

1 = lowest average monthly bill. 50 states and DC.

StateAvg. bill¢/kWhvs. South Dakota
South Dakota$16015.15—
Iowa$14917.06-6.9%
Minnesota$14517.20-9.4%
Montana$12215.57-23.8%
Nebraska$15513.54-3.1%
North Dakota$13013.31-18.8%
Wyoming$11814.43-26.2%

What is behind South Dakota's electric bills?

  • Bill versus price: The bill was 14.3% higher than August 2025 and the price per kWh 9% higher, so homes used more electricity than a year earlier.
  • Seasonal range: $112 in October 2025 to $176 in July 2026.
  • Annual total: $1,684.

Frequently asked questions

How much is the average electric bill in South Dakota?

The average residential electric bill in South Dakota was $160 a month in August 2026, based on EIA data. That assumes the state's average use of 1,057 kWh at 15.15¢/kWh. Because use changes with the seasons, the average over the 12 months to August 2026 is a steadier guide: $140 a month.

How much does electricity cost in South Dakota?

Residential customers in South Dakota paid an average of 15.15¢/kWh in August 2026, 9% higher than a year earlier.

Is electricity in South Dakota more expensive than the U.S. average?

In August 2026 the average South Dakota electric bill was $160, 23.4% lower than the U.S. average of $209. South Dakota ranked 14th of 51 from the lowest average bill (the 50 states and the District of Columbia).

How much electricity does a typical South Dakota home use?

A typical residential customer in South Dakota used 1,057 kWh in August 2026, calculated as total residential sales divided by the number of residential customers reported to EIA.

How much does a South Dakota household spend on electricity in a year?

Adding up the last 12 monthly average bills gives about $1,684 a year for a typical South Dakota household (12 months to August 2026). The highest month was July 2026 at $176; the lowest was October 2025 at $112.

Methodology, sources and updates

The average bill is the EIA average residential price multiplied by average monthly use per residential customer. EIA's price is residential revenue divided by kWh sold, so the fixed customer charges utilities bill are already spread across every kWh; your own fixed charge, rate plan and taxes can differ. Read the full methodology.

  • — Updated with EIA data for August 2026.
  • — Updated with EIA residential retail sales data for July 2026.

General information based on public data, not financial advice. Your own bill depends on your utility, rate plan, fixed charge, use and any taxes added to it. Spotted an error? Tell us and we will correct it publicly.