Brule CountyPower Outage History
2019–2025 · South Dakota
Better than average — fewer or shorter outages than most counties.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jul 4, 2020 | 3 hrs | 2,117 (52%) | Unnamed event |
| Jul 5, 2020 | 5 hrs | 2,116 (52%) | Thunderstorm Wind |
| Aug 31, 2020 | 2 hrs | 2,114 (52%) | Hail |
| May 12, 2022 | 2 hrs | 2,088 (51%) | Drought |
| Mar 15, 2021 | 4 hrs | 2,067 (51%) | Winter Weather |
Over the 7 years from 2019 to 2025, Brule County recorded 102 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Brule County started July 4, 2020, lasting 3 hours and leaving up to 2,117 customers without power (52% of the county) at its peak.
August has historically been the worst month for outages in Brule County, with 17 events recorded during that month across the dataset.
Based on this history, Brule County earns a Reliability Grade of B, placing it in the 80th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Brule County's outage profile
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Outage-prep kit
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Similar counties in South Dakota
Counties with the closest reliability grade and national percentile to Brule County.
| County | Grade | National percentile |
|---|---|---|
| Faulk County | B | 79th |
| Lyman County | A | 81st |
| Hyde County | B | 78th |
| Pennington County | A | 81st |
| Beadle County | B | 78th |
Most reliable counties in South Dakota
The top 3 counties in South Dakota by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Clay County | A | 100th |
| Codington County | A | 98th |
| Tripp County | A | 98th |
Least reliable counties in South Dakota
The bottom 3 counties in South Dakota by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Harding County | D | 21st |
| Perkins County | D | 29th |
| Custer County | D | 30th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Brule County?
Between 2019 and 2025, Brule County recorded 102 outage events, averaging 2.5 hours each.
What is Brule County's reliability grade?
Brule County has a Reliability Grade of B, in the 80th national percentile.
What was the worst power outage in Brule County?
The worst outage on record started July 4, 2020, lasting 3 hours and affecting up to 2,117 customers.