South Dakota · Municipal
Watertown Municipal Utilities
9.29¢ per kWh, bundled, EIA-861 2025. Average bill $82.26 at 885.6 kWh a month, across 11,775 customers on that row.
South Dakota averaged 13.32¢/kWh and $131.10 a month. The United States averaged 17.23¢/kWh and $150.68. State and national figures come from EIA's Average Bill file.
Revenue divided by sales, EIA-861 Sales to Ultimate Customers, 2025, released October 7, 2026. Texas wires utilities come from the Delivery Companies file. The price and bill use bundled service. Customer count: 11,775, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$92.90
9.29¢/kWh × 1,000 kWh. Bundled residential average, EIA-861 2025. The customer charge is already folded into this average, so it stands beside a tariff total rather than being added to it.
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 8.27¢ | $69.37 | 839.2 | 11,297 |
| 2016 | 8.64¢ | $79.48 | 919.3 | 10,390 |
| 2017 | 8.94¢ | $79.70 | 891.8 | 10,470 |
| 2018 | 8.89¢ | $86.09 | 968.9 | 10,525 |
| 2019 | 8.97¢ | $84.75 | 944.8 | 10,662 |
| 2020 | 8.96¢ | $84.52 | 942.8 | 10,718 |
| 2021 | 9.10¢ | $83.56 | 918.5 | 10,828 |
| 2022 | 9.02¢ | $85.83 | 951.5 | 11,075 |
| 2023 | 8.99¢ | $83.34 | 926.8 | 11,339 |
| 2024 | 9.30¢ | $79.62 | 856.0 | 11,633 |
| 2025 | 9.29¢ | $82.26 | 885.6 | 11,775 |
EIA-861, 2015–2025, using the same service type as the 2025 figure. A blank year means that service was not in the file.
Counties
Codington.
EIA-861 Service Territory, 2025. A listed county is the county EIA recorded. It does not mean every address in the county is served. Open this utility in the bill calculator · Rate history tool