Jackson CountyPower Outage History
2018–2025 · South Dakota
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jun 12, 2022 | 112 hrs | 739 (33%) | Thunderstorm Wind |
| Jun 12, 2022 | 3 hrs | 647 (29%) | Thunderstorm Wind |
| Mar 14, 2021 | 8 hrs | 439 (20%) | Heavy Snow |
| Mar 15, 2021 | 2 hrs | 304 (14%) | Heavy Snow |
| Mar 15, 2021 | 22 hrs | 288 (13%) | Heavy Snow |
Over the 8 years from 2018 to 2025, Jackson County recorded 127 distinct power outage events, averaging 3.9 hours per event.
The single worst outage on record in Jackson County started June 12, 2022 (Thunderstorm Wind), lasting 112 hours and leaving up to 739 customers without power (33% of the county) at its peak.
June has historically been the worst month for outages in Jackson County, with 23 events recorded during that month across the dataset.
Based on this history, Jackson County earns a Reliability Grade of B, placing it in the 69th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Jackson County's outage profile
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Read our mission →Similar counties in South Dakota
Counties with the closest reliability grade and national percentile to Jackson County.
| County | Grade | National percentile |
|---|---|---|
| Kingsbury County | B | 69th |
| Clark County | B | 69th |
| McPherson County | B | 69th |
| Yankton County | B | 65th |
| Fall River County | B | 65th |
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 Jackson County?
Between 2018 and 2025, Jackson County recorded 127 outage events, averaging 3.9 hours each.
What is Jackson County's reliability grade?
Jackson County has a Reliability Grade of B, in the 69th national percentile.
What was the worst power outage in Jackson County?
The worst outage on record started June 12, 2022 (Thunderstorm Wind), lasting 112 hours and affecting up to 739 customers.