Bonner CountyPower Outage History
What this grade means
Bottom 20% least reliable nationally — frequent and/or long outages. This county ranks in the least reliable fifth of all US counties in our dataset: some combination of frequent outages, long restoration times, or customers affected puts it near the bottom nationally. Backup power is worth prioritizing here rather than treating it as optional.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 19, 2021 | 26 hrs | 28,983 (96%) | Strong Wind |
| Nov 15, 2021 | 68 hrs | 25,571 (85%) | High Wind |
| Sep 26, 2024 | 58 hrs | 18,917 (63%) | Thunderstorm Wind |
| Jan 13, 2021 | 61 hrs | 18,423 (61%) | Strong Wind |
| Mar 13, 2020 | 48 hrs | 17,259 (57%) | High Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Bonner County, Idaho that day.
Over the 12 years from 2014 to 2025, Bonner County recorded 896 distinct power outage events, averaging 3.3 hours per event.
The single worst outage on record in Bonner County started April 19, 2021 (Strong Wind), lasting 26 hours and leaving up to 28,983 customers without power (96% of the county) at its peak.
December has historically been the worst month for outages in Bonner County, with 110 events recorded during that month across the dataset.
Based on this history, Bonner County earns a Reliability Grade of F, placing it in the 10th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Idaho
Counties with the closest reliability grade and national percentile to Bonner County.
| County | Grade | National percentile |
|---|---|---|
| Boise County | F | 14th |
| Clearwater County | F | 3rd |
| Benewah County | F | 17th |
| Boundary County | F | 17th |
| Idaho County | F | 17th |
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 Bonner County?
Between 2014 and 2025, Bonner County recorded 896 outage events, averaging 3.3 hours each.
What is Bonner County's reliability grade?
Bonner County has a Reliability Grade of F, in the 10th national percentile.
What was the worst power outage in Bonner County?
The worst outage on record started April 19, 2021 (Strong Wind), lasting 26 hours and affecting up to 28,983 customers.