Jones CountyPower Outage History
2019–2025 · 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 |
|---|---|---|---|
| Apr 20, 2020 | 3 hrs | 415 (30%) | Unnamed event |
| Mar 14, 2021 | 8 hrs | 279 (20%) | Heavy Snow |
| Apr 15, 2020 | 6 hrs | 254 (18%) | Unnamed event |
| Jul 14, 2021 | 1 hrs | 227 (16%) | Drought |
| Jun 13, 2022 | 56 hrs | 224 (16%) | Drought |
Over the 7 years from 2019 to 2025, Jones County recorded 139 distinct power outage events, averaging 2.8 hours per event.
The single worst outage on record in Jones County started April 20, 2020, lasting 3 hours and leaving up to 415 customers without power (30% of the county) at its peak.
July has historically been the worst month for outages in Jones County, with 28 events recorded during that month across the dataset.
Based on this history, Jones County earns a Reliability Grade of A, placing it in the 82nd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Jones 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 Jones County.
| County | Grade | National percentile |
|---|---|---|
| Ziebach County | A | 81st |
| Pennington County | A | 81st |
| Lyman County | A | 81st |
| Roberts County | A | 83rd |
| Brule County | B | 80th |
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 Jones County?
Between 2019 and 2025, Jones County recorded 139 outage events, averaging 2.8 hours each.
What is Jones County's reliability grade?
Jones County has a Reliability Grade of A, in the 82nd national percentile.
What was the worst power outage in Jones County?
The worst outage on record started April 20, 2020, lasting 3 hours and affecting up to 415 customers.