Bon Homme CountyPower Outage History
2020–2025 · South Dakota
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 | 33 hrs | 1,845 (49%) | Drought |
| Nov 8, 2020 | 8 hrs | 1,101 (29%) | Drought |
| Jul 30, 2024 | 7 hrs | 985 (26%) | Thunderstorm Wind |
| Jun 23, 2024 | 5 hrs | 716 (19%) | Flood |
| Mar 6, 2020 | 2 hrs | 705 (19%) | Flood |
Over the 6 years from 2020 to 2025, Bon Homme County recorded 88 distinct power outage events, averaging 3.6 hours per event.
The single worst outage on record in Bon Homme County started May 12, 2022 (Drought), lasting 33 hours and leaving up to 1,845 customers without power (49% of the county) at its peak.
November has historically been the worst month for outages in Bon Homme County, with 16 events recorded during that month across the dataset.
Based on this history, Bon Homme County earns a Reliability Grade of A, placing it in the 85th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Bon Homme 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 Bon Homme County.
| County | Grade | National percentile |
|---|---|---|
| Butte County | A | 85th |
| Union County | A | 86th |
| Meade County | A | 86th |
| Roberts County | A | 83rd |
| Jones County | A | 82nd |
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 Bon Homme County?
Between 2020 and 2025, Bon Homme County recorded 88 outage events, averaging 3.6 hours each.
What is Bon Homme County's reliability grade?
Bon Homme County has a Reliability Grade of A, in the 85th national percentile.
What was the worst power outage in Bon Homme County?
The worst outage on record started May 12, 2022 (Drought), lasting 33 hours and affecting up to 1,845 customers.