Power Outages in Sheridan County, WY
As of October 19, 2026 04:40 UTC, about 1 customers are without power in Sheridan County, WY across 1 reported incident. There is no live feed for Big Horn County Elec Coop, Inc and Big Horn Rural Electric Co, so outages in their service area aren't counted. In 2025, the average customer here lost power for about 4.5 hours.
Sheridan County, WY is served by 4 tracked utilities.
Cite this data
- URL
- https://massoutage.com/wyoming/sheridan-county
- As of
- October 19, 2026 04:40 UTC
- Publisher
- MassOutage
MassOutage, "Power Outages in Sheridan County, WY", live data as of October 19, 2026 04:40 UTC. https://massoutage.com/wyoming/sheridan-county
Not counted: no live feed for Big Horn County Elec Coop, Inc and Big Horn Rural Electric Co.
7.6%of this county's ~18,591 customers are served by utilities with a county-level live feed.
We can't see outages for: Big Horn County Elec Coop, Inc, Big Horn Rural Electric Co. Their customers are not in any number on this page; check their own outage maps.
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Powder River Energy Corp | Live · county | 1 | 1,415 | 0.1% | - | - | - | |
| Montana-Dakota Utilities Co | Live · county | 0 | - | - | - | 0 | - | |
| Big Horn County Elec Coop, Inc | No live feed | can't see | - | - | - | - | - | - |
| Big Horn Rural Electric Co | No live feed | can't see | - | - | - | - | - | - |
Powder River Energy Corp and Montana-Dakota Utilities Co reportevery town in the county on each poll, so 0 out is a real all-clear. ETRs are the utility's own estimates.
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in Sheridan Countywho rely on electricity-dependent medical equipment (ventilators, oxygen concentrators, home dialysis, powered wheelchairs, and more). HHS reports counts of 1–10 as “≤11”. Medicare only, so the full at-risk population is larger.
By ZIP code (10)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 82801 | 556 | 26 | 514 | ≤11 |
| 82836 | 30 | ≤11 | 28 | 0 |
| 82839 | 24 | 0 | 24 | 0 |
| 82833 | 21 | ≤11 | 18 | 0 |
| 82842 | 18 | ≤11 | 18 | 0 |
| 82844 | ≤11 | 0 | ≤11 | 0 |
| 82838 | ≤11 | 0 | ≤11 | 0 |
| 82835 | ≤11 | 0 | ≤11 | 0 |
| 82832 | ≤11 | ≤11 | ≤11 | ≤11 |
| 82831 | ≤11 | 0 | ≤11 | 0 |
Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.
Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for Sheridan County or any town and utility in it.
No active NWS alerts for Sheridan County right now.
Sheridan County has been under 17 National Weather Service alerts recently, most recently a Fire Weather Watch on October 9, 2026.
- Flood Watch ×8
- Special Weather Statement ×5
- Dense Fog Advisory ×2
- Fire Weather Watch ×1
- Red Flag Warning ×1
Latest Sheridan County, WY outage updates
A running log of how this outage has changed, updated automatically as utilities report in.
- RESOLVED
Power restored after 5h 34m
- IMPROVING
Improving: down to 90 customers out
- OUTAGE BEGAN
Outage began: 629 customers out (3.6% of the county)
Hardest-hit cities in Sheridan County
Where this event is concentrated across the county's towns and townships.
Live outage counts are tracked at the county level; a city-by-city split within Sheridan Countyisn't available yet.
Historical reliability
In 2025, the average customer in Sheridan County went about 4.5 hours without power. Peak simultaneous outage on record reached 12,017 customers.
The US EIA reports Wyoming utilities averaged 4.4 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 4.5 hrs.
Worst year here was 2025 (peak 12,017 customers out) · decade average 2.4 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2017 | 150 | 808 | 1.4 |
| 2018 | 112 | 828 | 0.8 |
| 2019 | 213 | 1,126 | 0.8 |
| 2020 | 245 | 1,008 | 1.3 |
| 2021 | 232 | 2,784 | 4.1 |
| 2022 | 214 | 4,930 | 3.7 |
| 2023 | 205 | 3,907 | 1.9 |
| 2024 | 197 | 985 | 3.0 |
| 2025 | 243 | 12,017 | 4.5 |
Cost of power in Sheridan County
ENERGY & AI DEMAND →Estimated residential electricity price for Sheridan County, customer-weighted across the utilities serving it (US EIA, 2025). Retail prices aren't published at the county level; this is a derived estimate.
- Powder River Energy Corp12.2¢15,548 cust
- Montana-Dakota Utilities Co12.0¢14,993 cust
Weighted by each utility's residential customer count (utilities report customers at the state level; a per-county share isn't published). Rising retail prices track a national demand surge; see energy & the data-center boom.
Relatively High winter weather exposure · 2.4 hrs/yr of outages over the last decade.
Power outages in Sheridan County: FAQ
- How often does Sheridan County, WY lose power?
- Based on EAGLE-I records, Sheridan County, WY logged 243 distinct outage events in 2025, averaging about 4.5 hours without power per customer over the year.
- What was the worst power outage in Sheridan County, WY?
- The largest tracked outage peaked at 12,017 customers without power, beginning November 13, 2025 and lasting about 5d 5h.
- Is there a power outage in Sheridan County, WY right now?
- Yes, about 1 customers are currently without power across 1 reported incident(s).
- Which utilities serve Sheridan County, WY?
- Tracked electric providers include Montana-Dakota Utilities Co, Powder River Energy Corp.
Outages are tracked at the county level; these ZIP codes fall within Sheridan County.
82801, 82832, 82833, 82835, 82836, 82837, 82838, 82839, 82842, 82844, 82845
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Montana-Dakota Utilities Co | 2.4 hrs | Live · county | - |
| Powder River Energy Corp | 9.5 hrs | Live · county | - |
| Big Horn Rural Electric Co | - | No live feed | - |
| Big Horn County Elec Coop, Inc | - | No live feed | - |
Data from DOE/ORNL ODIN, DOE EAGLE-I, EIA Form 861 (utility reliability), EIA electricity retail prices and FEMA National Risk Index, every source we read. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Wyoming customers). Machine-readable data: /api/v1/counties/56033 and /api/v1/counties/56033/history. Live data as of .