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Sully County, SD Energy
Electric utilities, power plants and charging stations in Sully County, South Dakota.
- South Dakota home electricity
- 15.37¢/kWh
- July 2026
- Regular gas, region
- $4.15/gal
- Midwest (PADD 2)
- Electric utilities
- 4
- Serving Sully County
Electric utilities serving Sully County
As reported to EIA for 2025. A utility may serve only part of the county. Customers and prices are for its whole South Dakota service area
Swipe the table sideways to see more columns.
| Utility | Customers in state | Home price | Home bill |
|---|---|---|---|
| Dakota Energy Coop IncCooperative | 3,645 | 16.28¢/kWh | $276/mo |
| Oahe Electric Coop IncCooperative | 3,282 | 10.54¢/kWh | $170/mo |
| City of Onida - (SD)Municipal | 494 | Not reported | Not reported |
| WAPA-- Western Area Power AdministrationFederal | 25 | Not reported | Not reported |
Electricity rates and gas prices are state or regional averages. Utility service areas come from EIA Form 861 and are listed by county, so a utility listed here may not serve every address in the county.
Frequently asked questions
- What electric company serves Sully County?
- Dakota Energy Coop Inc, Oahe Electric Coop Inc, City of Onida - (SD) and 1 more report serving Sully County to EIA. Check your bill or address with the utility to confirm which one serves you.