Johnson County, WY Power Outages
As of Nov 3, 12:30 AM EST, no power outages were reported in Johnson County, Wyoming by PacifiCorp or Powder River Energy Corp.
Johnson County on the Wyoming outage map
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Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
Johnson County power outage history
Every significant outage recorded in Johnson County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 205 significant power outages in Johnson County, meaning events that left at least 1% of customers in the dark. The largest (Nov 13–14, 2025) came when high winds left 7,084 customers (100% of the county) without power.
From 2018 to 2025, the average customer here lost about 5 hr 38 min of power per year, more than the Wyoming average of 2 hr 19 min. That ranks 6th of 23 Wyoming counties for outage time, where 1st has the most.
June is the riskiest month: it accounted for 15% of all customer outage time from 2018 to 2025. On 85 days in that period, at least 5% of customers were out at the same time. Outage time in Johnson County has risen recently: about 6 hr 39 min per customer per year in 2022–2025, versus 4 hr 37 min in 2018–2021.
The most recent significant outage on record (Dec 16–20, 2025) affected 1,962 customers (36%) amid high winds.
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Nov 13–14, 2025 | 7,084(100%) | 2 | High winds |
| 2 | Aug 12, 2022 | 3,889(71.4%) | 1 | Flooding |
| 3 | Oct 23, 2018 | 3,638(66.8%) | 1 | No major storm reported |
| 4 | May 31 – Jun 1, 2018 | 3,618(66.4%) | 2 | Tornadoes |
| 5 | Jan 6, 2018 | 3,617(66.4%) | 1 | Winter storm |
Hours without power per customer, by year
When outages happen
Source: DOE/ORNL EAGLE-I recorded electricity outages, 2014–2025 (CC BY 4.0), with likely causes from the NOAA NCEI Storm Events Database. EAGLE-I coverage was partial before 2018, so averages use 2018–2025. Peak counts are the highest number of customers out at one time.
Who provides electricity in Johnson County?
Electric companies with service territory in Johnson County (EIA-861, 2025)
| Utility | Type | Customers (WY) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| PacifiCorp (Rocky Mountain Power / Pacific Power) | Investor Owned | 148,217 | Reporting | |
| Powder River Energy Corp | Cooperative | 27,766 | Reporting | |
| Montana-Dakota Utilities | Investor Owned | 18,396 | Not reporting | |
| High Plains Power Inc | Cooperative | 14,038 | Not reporting | |
| Big Horn Rural Electric Co | Cooperative | 4,136 | Not reporting |
Customer counts are each utility's statewide total in Wyoming. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No Johnson County outage headlines in the past week.
Johnson County power outage FAQ
Is the power out in Johnson County right now?
No outages are currently reported for Johnson County by participating utilities. If your power is out, report it to your electric company.
Which electric company serves Johnson County?
According to EIA-861 service territory data, PacifiCorp, Powder River Energy Corp, Montana-Dakota Utilities Co, High Plains Power Inc and 1 others provide electric service in Johnson County, Wyoming.
What was the worst power outage in Johnson County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Nov 13–14, 2025. It peaked at 7,084 customers without power (100% of the county). NOAA storm reports for that period point to high winds.
How often does the power go out in Johnson County?
EAGLE-I has recorded 205 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 5 hr 38 min of power per year, and on 85 days at least 5% of customers were out at once.
Cite this page
You may reuse our derived data under CC BY 4.0 with attribution. Underlying government data is public domain.
PowerOutageTracker.com. "Johnson County, WY Power Outages." Accessed November 3, 2026. https://poweroutagetracker.com/outages/wyoming/johnson-county