Millard CountyPower Outage History
2017–2025 · Utah
Better than average — fewer or shorter outages than most counties.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 16, 2022 | <1 hr | 3,044 (67%) | High Wind |
| Oct 25, 2024 | <1 hr | 1,801 (40%) | Unnamed event |
| Sep 29, 2021 | 2 hrs | 1,741 (38%) | Unnamed event |
| Sep 4, 2023 | 1 hrs | 1,239 (27%) | Unnamed event |
| Jul 26, 2021 | 2 hrs | 1,221 (27%) | Dust Storm |
Over the 9 years from 2017 to 2025, Millard County recorded 441 distinct power outage events, averaging 2.3 hours per event.
The single worst outage on record in Millard County started April 16, 2022 (High Wind), lasting less than 1 hour and leaving up to 3,044 customers without power (67% of the county) at its peak.
August has historically been the worst month for outages in Millard County, with 52 events recorded during that month across the dataset.
Based on this history, Millard County earns a Reliability Grade of B, placing it in the 63rd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Millard County's outage profile
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Outage-prep kit
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Similar counties in Utah
Counties with the closest reliability grade and national percentile to Millard County.
| County | Grade | National percentile |
|---|---|---|
| Box Elder County | B | 62nd |
| Sanpete County | B | 65th |
| Iron County | B | 66th |
| Grand County | C | 58th |
| Tooele County | B | 70th |
Most reliable counties in Utah
The top 3 counties in Utah by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Daggett County | A | 98th |
| Kane County | A | 98th |
| Duchesne County | A | 97th |
Least reliable counties in Utah
The bottom 3 counties in Utah by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Morgan County | D | 25th |
| Beaver County | D | 34th |
| Summit County | D | 36th |
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 Millard County?
Between 2017 and 2025, Millard County recorded 441 outage events, averaging 2.3 hours each.
What is Millard County's reliability grade?
Millard County has a Reliability Grade of B, in the 63rd national percentile.
What was the worst power outage in Millard County?
The worst outage on record started April 16, 2022 (High Wind), lasting less than 1 hour and affecting up to 3,044 customers.