Blaine County Power Outage History
2015–2025 · Idaho
Worse than average — more frequent or longer outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 11, 2023 | 2 hrs | 9,582 (78%) | Unnamed event |
| Mar 2, 2022 | 1 hrs | 9,422 (77%) | Unnamed event |
| Jun 11, 2025 | 7 hrs | 9,205 (75%) | Unnamed event |
| May 5, 2023 | 3 hrs | 9,160 (75%) | Unnamed event |
| Sep 29, 2022 | 10 hrs | 8,916 (73%) | Wildfire |
Over the 11 years from 2015 to 2025, Blaine County recorded 444 distinct power outage events, averaging 3.5 hours per event.
The single worst outage on record in Blaine County started October 11, 2023, lasting 2 hours and leaving up to 9,582 customers without power (78% of the county) at its peak.
July has historically been the worst month for outages in Blaine County, with 71 events recorded during that month across the dataset.
Based on this history, Blaine County earns a Reliability Grade of D, placing it in the 39th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Blaine County's outage profile
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Similar counties in Idaho
Counties with the closest reliability grade and national percentile to Blaine County.
| County | Grade | National percentile |
|---|---|---|
| Clark County | D | 39th |
| Gooding County | C | 43rd |
| Lemhi County | C | 43rd |
| Latah County | D | 34th |
| Valley County | D | 32nd |
FAQ
How often does power go out in Blaine County?
Between 2015 and 2025, Blaine County recorded 444 outage events, averaging 3.5 hours each.
What is Blaine County's reliability grade?
Blaine County has a Reliability Grade of D, in the 39th national percentile.
What was the worst power outage in Blaine County?
The worst outage on record started October 11, 2023, lasting 2 hours and affecting up to 9,582 customers.