Box Elder CountyPower Outage History
What this grade means
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jul 28, 2024 | 4 hrs | 7,571 (32%) | Thunderstorm Wind |
| Mar 23, 2022 | 1 hrs | 5,562 (24%) | Unnamed event |
| Jun 6, 2020 | 3 hrs | 5,085 (22%) | Thunderstorm Wind |
| Sep 19, 2017 | 1 hrs | 4,822 (20%) | Unnamed event |
| Aug 8, 2017 | 5 hrs | 4,816 (20%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Box Elder County, Utah that day.
Over the 9 years from 2017 to 2025, Box Elder County recorded 496 distinct power outage events, averaging 2.9 hours per event.
The single worst outage on record in Box Elder County started July 28, 2024 (Thunderstorm Wind), lasting 4 hours and leaving up to 7,571 customers without power (32% of the county) at its peak.
August has historically been the worst month for outages in Box Elder County, with 79 events recorded during that month across the dataset.
Based on this history, Box Elder County earns a Reliability Grade of B, placing it in the 62nd percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Utah
Counties with the closest reliability grade and national percentile to Box Elder County.
| County | Grade | National percentile |
|---|---|---|
| Millard County | B | 63rd |
| Sanpete County | B | 65th |
| Iron County | B | 66th |
| Grand County | C | 58th |
| Tooele County | B | 70th |
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 Box Elder County?
Between 2017 and 2025, Box Elder County recorded 496 outage events, averaging 2.9 hours each.
What is Box Elder County's reliability grade?
Box Elder County has a Reliability Grade of B, in the 62nd national percentile.
What was the worst power outage in Box Elder County?
The worst outage on record started July 28, 2024 (Thunderstorm Wind), lasting 4 hours and affecting up to 7,571 customers.