South Dakota · EIA utility 13853 · Full-service utility
Oahe Electric Coop Inc electricity rates in South Dakota, 2025
Oahe Electric Coop Inc’s 2,335 residential customers paid an average of 10.54¢ per kWh in 2025, 21% below the South Dakota average of 13.32¢. The typical home used 1,612 kWh a month, for an average bill of $170.
- 10.54¢avg ¢/kWh (2025)n/a vs 2024
- $170Avg monthly billSouth Dakota: $131
- 1,612 kWhAvg monthly useSouth Dakota: 984 kWh
- 2,335Residential customersFull-service utility
| Sector | Customers | Sales (MWh) | Revenue | ¢/kWh 2025 | ¢/kWh 2024 | Change |
|---|---|---|---|---|---|---|
| Residential | 2,335 | 45,165 | $4,760,000 | 10.54¢ | n/a | n/a |
| Commercial | 723 | 278,503 | $18,471,000 | 6.63¢ | n/a | n/a |
| Industrial | 224 | 9,717 | $1,279,000 | 13.16¢ | n/a | n/a |
| All sectors | 3,282 | 333,385 | $24,510,000 | 7.35¢ | n/a | n/a |
How Oahe Electric Coop Inc compares
- South Dakota residential average, 2025: 13.32¢ per kWh, 984 kWh a month, $131 average bill. U.S. average: 17.23¢, 874 kWh, $151.
- Among 21 full-service utilities in South Dakota with at least 1,000 residential customers, Oahe Electric Coop Inc ranks 4 of 21 from lowest to highest average price.
- Latest monthly figure: South Dakota homes paid 15.15¢ per kWh in August 2026 (preliminary), against 13.90¢ in August 2025. Summer months often run higher than the annual average.
- No 2024 comparison: EIA has no matching 2024 residential record for this provider in South Dakota.
- Oahe Electric Coop Inc is an electric cooperative, owned by the members it serves; its board sets rates. Balancing authority: SWPP.
Where Oahe Electric Coop Inc serves
EIA lists 2 South Dakota counties in its 2025 service territory: Hughes, Sully.
South Dakota full-service utilities with similar rates
| Provider | ¢/kWh | Avg bill | Customers |
|---|---|---|---|
| MidAmerican Energy Co | 8.90¢ | $99 | 4,236 |
| Watertown Municipal Utilities | 9.29¢ | $82 | 11,775 |
| Nebraska Public Power District | 10.08¢ | $124 | 1,047 |
| City of Brookings (SD) | 10.69¢ | $94 | 10,769 |
| City of Pierre (SD) | 10.94¢ | $99 | 6,183 |
| Otter Tail Power Co | 11.42¢ | $123 | 9,094 |
| Northern Electric Coop, Inc | 11.43¢ | $239 | 5,823 |
| Rosebud Electric Coop Inc | 11.88¢ | $137 | 4,911 |
Sources
- U.S. Energy Information Administration, Annual Electric Power Industry Report, Form EIA-861, 2025 final data (f8612025.zip, file dated October 7, 2026): Sales to Ultimate Customers, Average Monthly Bill and Service Territory tables.
- EIA Form EIA-861, 2024 final data (f8612024.zip, file dated December 4, 2025), for the 2024 comparison.
- EIA Electric Power Monthly, Table 5.6.A (average price by state, August 2026 and August 2025; 2026 values are preliminary), file dated October 22, 2026.
Average price = residential revenue ÷ residential kWh sold, as reported to EIA. It includes fixed monthly charges, taxes passed through in revenue and seasonal tiers, averaged over the year. Your own rate depends on your tariff and usage.
All South Dakota electricity providers · How we compute rates