Montana-Dakota Utilities: electric rates and average bill
Montana-Dakota Utilities is an investor-owned utility that serves 6,348 homes in South Dakota. In 2025, its average home used 852 kWh a month and paid $110.69 (13.0¢ per kWh), less than the South Dakota average of $131.10.
- Investor-owned utility
- 6,348 homes
- EIA data, 2025
Montana-Dakota Utilities at a glance
| Type of utility | Investor-owned utility |
|---|---|
| Homes served in South Dakota | 6,348 |
| Average home bill | $110.69 a month (South Dakota average $131.10) |
| Average price | 13.0¢ per kWh (South Dakota average 13.3¢) |
| Average home use | 852 kWh a month (South Dakota average 984) |
| Business customers | 11.8¢ per kWh, average bill $299.05 a month (2,088 businesses; South Dakota business rates) |
| Power outages | 2.6 outages and 206 minutes without power for the average customer in a normal year; 2.6 outages and 212 minutes with major storms (more minutes than the middle South Dakota utility, 65 minutes) |
| Time-based rates for homes | Time-of-use pricing; 1 homes enrolled |
| Grid | MRO region; SPP and MISO market; owns power plants |
| Counties served | Brown, Campbell, Corson, Day, Edmunds, Faulk, Grant, Harding, McPherson, Perkins, Potter, Roberts, Walworth |
Price rank: Montana-Dakota Utilities has the 13th lowest average price of the 21 South Dakota utilities with 1,000 or more homes.
Other utilities in the same counties
These utilities also serve homes in one or more of the counties of Montana-Dakota Utilities. Your address has one utility: it is on your bill.
| Utility | Homes | Average bill | Price per kWh |
|---|---|---|---|
| NorthWestern Energy | 51,787 | $125.34 | 13.3¢ |
| Otter Tail Power | 9,094 | $123.34 | 11.4¢ |
| Northern Electric Cooperative | 5,823 | $239.29 | 11.4¢ |
| Dakota Energy Cooperative | 3,231 | $275.69 | 16.3¢ |
Montana-Dakota Utilities rates and your bill
This site does not have a bill calculator for Montana-Dakota Utilities yet: we add a calculator only after we check every charge in the official rate schedule. The current rates are on the Montana-Dakota Utilities rates page. The averages on this page come from the yearly report that each utility files with the U.S. Energy Information Administration (Form EIA-861, 2025 data), so they show the past year, not today's rates.
- Montana-Dakota Utilities website
- State regulator: South Dakota Public Utilities Commission
- The average electric bill in South Dakota, the average bill in each state and the ZIP code finder
Do you want a Montana-Dakota Utilities bill calculator? Tell us.
What is the average Montana-Dakota Utilities electric bill (SD)?
In 2025, its average home used 852 kWh a month and paid $110.69 (13.0¢ per kWh), less than the South Dakota average of $131.10.
How often does the power go out with Montana-Dakota Utilities (SD)?
In 2025, the average Montana-Dakota Utilities customer had 2.6 outages and 206 minutes without power, not counting major storms (2.6 outages and 212 minutes with them).
Does Montana-Dakota Utilities (SD) have time-of-use rates?
Montana-Dakota Utilities reported these time-based rates for homes to EIA in 2025: Time-of-use pricing; 1 homes enrolled. The rate schedules have the hours and prices.
utilityratecalc.com is not part of Montana-Dakota Utilities. Source: EIA-861 data, 2025. The averages include all charges that the utility reports as revenue from homes that buy their power from it.