See current outages near you, plus an independent restoration forecast when enough trend data exists · Wyoming
Our restoration forecast is independent and unofficial, never the utility's commitment. How it works · How accurate it has been
Who serves Sheridan County?
County-wide coverage, with utility detail where available. Serving utilities tracked here include Montana-Dakota Utilities and Powder River Energy Corp, alongside the nationwide county-by-county tally. Big Horn Rural Electric Co and Big Horn County Electric Cooperative also serve parts of this county — we don't yet read their own live outage maps. Multiple utilities serve parts of this area — enter a street address above for your exact provider.
Outage history — Sheridan County, WY
Last significant outage: Sep 23, 2026 — peaked at 640 customers, restored in ~5.5 hr (no severe weather).
Across the 4 significant outages tracked here, restoration typically ran about 4 hr.
This county-level list covers larger outages (about 200+ customers at peak, lasting 30 minutes or more) — oldest listed: Jul 14, 2026. Smaller or briefer interruptions aren't listed.
Longer-term outage history — Sheridan County, WY
Federal outage records (
EAGLE-I, kept by the U.S. Department of Energy) show
125 notable outages (200+ customers at peak) here between 2014 and 2025 — including
1 major event of 10,000+ customers.
Typical restoration ran ~
3 hr (median), and outages here have been most common in summer.
That is longer than the Wyoming norm in the same records, where the typical outage ran ~1.9 hr.
Largest on record: ~12,017 customers out in November 2025, restored after about 5.8 hr. The busiest year on record here was 2022.
Source: EAGLE-I (Oak Ridge National Laboratory / U.S. Department of Energy), county-level
records 2014–2025 measured by the same rules as our tracking archive above, over a far longer period than we have been tracking — the same method, a different set of outages. These are federal historical records,
not events tracked live by this site.
Cities we track in Sheridan County
Communities in Sheridan County include Ranchester, Dayton, Clearmont, Arvada, Big Horn, Parkman, Powder Horn and Sheridan South. Searches and the live map cover every address in the county, named here or not.
Common questions
How do I report a power outage in Sheridan County, WY?
Report it to your electric utility — crews are dispatched from customer reports. Utilities serving parts of Sheridan include Montana-Dakota Utilities, Powder River Energy Corp, Big Horn Rural Electric Co and others — service areas overlap and county lines don't decide your provider, so confirm yours, then use its outage line or website. Reporting a downed line also helps crews find the fault faster. In a life-threatening emergency, call 911.
