Park CountyPower Outage History
What this grade means
(How grades are calculated)Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.
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Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 2, 2021 | <1 hr | 3,222 (23%) | Unnamed event |
| Jun 20, 2023 | <1 hr | 2,769 (20%) | Unnamed event |
| Jul 26, 2025 | 2 hrs | 2,206 (16%) | Unnamed event |
| Jan 11, 2024 | 2 hrs | 2,134 (15%) | Winter Storm |
| Jul 26, 2024 | <1 hr | 1,649 (12%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Park County, Wyoming that day.
Over the 12 years from 2014 to 2025, Park County recorded 209 distinct power outage events, averaging 2.8 hours per event.
The single worst outage on record in Park County started February 2, 2021, lasting less than 1 hour and leaving up to 3,222 customers without power (23% of the county) at its peak.
August has historically been the worst month for outages in Park County, with 29 events recorded during that month across the dataset.
Based on this history, Park County earns a Reliability Grade of A, placing it in the 88th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Wyoming
Counties with the closest reliability grade and national percentile to Park County.
| County | Grade | National percentile |
|---|---|---|
| Natrona County | A | 87th |
| Lincoln County | A | 89th |
| Washakie County | A | 90th |
| Uinta County | A | 93rd |
| Big Horn County | A | 82nd |
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 Park County?
Between 2014 and 2025, Park County recorded 209 outage events, averaging 2.8 hours each.
What is Park County's reliability grade?
Park County has a Reliability Grade of A, in the 88th national percentile.
What was the worst power outage in Park County?
The worst outage on record started February 2, 2021, lasting less than 1 hour and affecting up to 3,222 customers.