Power outages in Corson County, SD
We don't have a live outage feed for the utilities serving Corson County yet. Montana-Dakota Utilities Co, City of McLaughlin - (SD) and Grand Electric Coop, Inc serve this county.
Right now
No live outage data for Corson County yet.
i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.Outage map
Outage history in Corson County
2014–2025 recordCorson County averaged 5 significant outages a year in 2023–2025, about typical for South Dakota counties.
In the 12 months to December 2025, there were 6. Half were over within 2 hours; the longest lasted 5 hours, starting June 21, 2025.
The largest on record began November 27, 2024, with 281 customers out at once.
Outages are most common in June.
i
At least 1% of the area's customers, and at least 100, without power at the same time. Outages less than 6 hours apart count as one.i
Half of significant outages here ended sooner than this, and half lasted longer.| Largest events (start) | Peak out | LastediHow long this area stayed at or above the significant-outage line, not how long any one home was without power. | Customer-hoursiCustomers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours. |
|---|---|---|---|
| November 27, 2024 | 281 | 2.5 hours | 703 |
| July 14, 2024 | 224 | 10 hours | 1,588 |
| November 13, 2024 | 209 | 2 hours | 418 |
| September 22, 2024 | 207 | 1.5 hours | 259 |
| August 21, 2025 | 201 | 30 minutes | 101 |
Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).i
From EAGLE-I, Oak Ridge National Laboratory's record of utility outage data every 15 minutes since 2014 (CC BY 4.0). It covered about 9 in 10 U.S. customers.
Cities in Corson County
Utilities
- Montana-Dakota Utilities Co no live feed
- City of McLaughlin - (SD) no live feed
- Grand Electric Coop, Inc no live feed
- Moreau-Grand Electric Coop Inc no live feed
- All South Dakota outages