Davison CountyPower Outage History
What this grade means
Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| May 12, 2022 | 6 hrs | 6,327 (40%) | Drought |
| Jul 26, 2022 | 2 hrs | 6,153 (39%) | Flood |
| Jun 9, 2020 | 31 hrs | 3,951 (25%) | Flood |
| Jul 26, 2023 | 12 hrs | 3,518 (22%) | Drought |
| Jun 22, 2024 | <1 hr | 2,735 (17%) | Flash Flood |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Davison County, South Dakota that day.
Over the 7 years from 2019 to 2025, Davison County recorded 99 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Davison County started May 12, 2022 (Drought), lasting 6 hours and leaving up to 6,327 customers without power (40% of the county) at its peak.
June has historically been the worst month for outages in Davison County, with 17 events recorded during that month across the dataset.
Based on this history, Davison County earns a Reliability Grade of A, placing it in the 90th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in South Dakota
Counties with the closest reliability grade and national percentile to Davison County.
| County | Grade | National percentile |
|---|---|---|
| Charles Mix County | A | 90th |
| Brown County | A | 90th |
| Hutchinson County | A | 90th |
| Douglas County | A | 90th |
| Brookings County | A | 91st |
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 Davison County?
Between 2019 and 2025, Davison County recorded 99 outage events, averaging 2.7 hours each.
What is Davison County's reliability grade?
Davison County has a Reliability Grade of A, in the 90th national percentile.
What was the worst power outage in Davison County?
The worst outage on record started May 12, 2022 (Drought), lasting 6 hours and affecting up to 6,327 customers.