Iron 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 31, 2024 | 3 hrs | 16,770 (61%) | Flash Flood |
| Aug 2, 2024 | 3 hrs | 6,817 (25%) | Thunderstorm Wind |
| Aug 14, 2024 | 2 hrs | 6,366 (23%) | Unnamed event |
| Feb 29, 2024 | 7 hrs | 5,823 (21%) | Unnamed event |
| Aug 8, 2024 | 1 hrs | 4,751 (17%) | Thunderstorm Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Iron County, Utah that day.
Over the 9 years from 2017 to 2025, Iron County recorded 386 distinct power outage events, averaging 2.2 hours per event.
The single worst outage on record in Iron County started July 31, 2024 (Flash Flood), lasting 3 hours and leaving up to 16,770 customers without power (61% of the county) at its peak.
July has historically been the worst month for outages in Iron County, with 54 events recorded during that month across the dataset.
Based on this history, Iron County earns a Reliability Grade of B, placing it in the 66th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Utah
Counties with the closest reliability grade and national percentile to Iron County.
| County | Grade | National percentile |
|---|---|---|
| Sanpete County | B | 65th |
| Millard County | B | 63rd |
| Tooele County | B | 70th |
| Box Elder County | B | 62nd |
| Salt Lake 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 Iron County?
Between 2017 and 2025, Iron County recorded 386 outage events, averaging 2.2 hours each.
What is Iron County's reliability grade?
Iron County has a Reliability Grade of B, in the 66th national percentile.
What was the worst power outage in Iron County?
The worst outage on record started July 31, 2024 (Flash Flood), lasting 3 hours and affecting up to 16,770 customers.