Franklin County Power Outage History
2017–2025 · Idaho
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 10, 2024 | 1 hrs | 6,717 (56%) | Unnamed event |
| Aug 28, 2025 | 0 hrs | 6,270 (53%) | Unnamed event |
| Dec 1, 2020 | 2 hrs | 5,329 (45%) | Unnamed event |
| Nov 8, 2020 | 13 hrs | 5,323 (45%) | Unnamed event |
| Sep 22, 2025 | 5 hrs | 3,962 (33%) | Unnamed event |
Over the 9 years from 2017 to 2025, Franklin County recorded 236 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Franklin County started August 10, 2024, lasting 1 hours and leaving up to 6,717 customers without power (56% of the county) at its peak.
August has historically been the worst month for outages in Franklin County, with 51 events recorded during that month across the dataset.
Based on this history, Franklin County earns a Reliability Grade of A, placing it in the 82nd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Franklin County's outage profile
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Similar counties in Idaho
Counties with the closest reliability grade and national percentile to Franklin County.
| County | Grade | National percentile |
|---|---|---|
| Twin Falls County | A | 82nd |
| Bannock County | A | 81st |
| Payette County | A | 85th |
| Bonneville County | A | 85th |
| Teton County | B | 78th |
FAQ
How often does power go out in Franklin County?
Between 2017 and 2025, Franklin County recorded 236 outage events, averaging 2.4 hours each.
What is Franklin County's reliability grade?
Franklin County has a Reliability Grade of A, in the 82nd national percentile.
What was the worst power outage in Franklin County?
The worst outage on record started August 10, 2024, lasting 1 hours and affecting up to 6,717 customers.