Perkins CountyPower Outage History
What this grade means
(How grades are calculated)Worse than average — more frequent or longer outages than most counties. This county's recorded history shows more frequent outages and/or longer restoration times than most US counties over the same 12-year period. If you live here, it's worth taking backup power more seriously than an average household would.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jan 14, 2021 | <1 hr | 1,988 (63%) | High Wind |
| Apr 24, 2022 | 18 hrs | 1,609 (51%) | Blizzard |
| Apr 12, 2022 | 3 hrs | 1,232 (39%) | High Wind |
| Sep 5, 2019 | 9 hrs | 1,188 (37%) | Unnamed event |
| Apr 22, 2024 | 1 hrs | 1,149 (36%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Perkins County, South Dakota that day.
Over the 9 years from 2017 to 2025, Perkins County recorded 439 distinct power outage events, averaging 3.9 hours per event.
The single worst outage on record in Perkins County started January 14, 2021 (High Wind), lasting less than 1 hour and leaving up to 1,988 customers without power (63% of the county) at its peak.
July has historically been the worst month for outages in Perkins County, with 74 events recorded during that month across the dataset.
Based on this history, Perkins County earns a Reliability Grade of D, placing it in the 29th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in South Dakota
Counties with the closest reliability grade and national percentile to Perkins County.
| County | Grade | National percentile |
|---|---|---|
| Custer County | D | 30th |
| Grant County | D | 31st |
| Harding County | D | 21st |
| Marshall County | D | 37th |
| McCook County | C | 43rd |
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 Perkins County?
Between 2017 and 2025, Perkins County recorded 439 outage events, averaging 3.9 hours each.
What is Perkins County's reliability grade?
Perkins County has a Reliability Grade of D, in the 29th national percentile.
What was the worst power outage in Perkins County?
The worst outage on record started January 14, 2021 (High Wind), lasting less than 1 hour and affecting up to 1,988 customers.