See current outages near you, plus an independent restoration forecast when enough trend data exists · Iowa
Our restoration forecast is independent and unofficial, never the utility's commitment. How it works · How accurate it has been
Who serves Dubuque County?
County-wide coverage, with utility detail where available. Serving utilities tracked here include Alliant Energy and Iowa Electric Cooperatives, alongside the nationwide county-by-county tally. Cascade Municipal Utilities also serves parts of this county — we don't yet read its own live outage map. Multiple utilities serve parts of this area — enter a street address above for your exact provider.
Outage history — Dubuque County, IA
Last significant outage: Sep 19, 2026 — peaked at 373 customers, restored in ~3 hr (weather alert).
Across the 3 significant outages tracked here, restoration typically ran about 3 hr.
This county-level list covers larger outages (about 200+ customers at peak, lasting 30 minutes or more) — oldest listed: Aug 11, 2026. Smaller or briefer interruptions aren't listed.
Longer-term outage history — Dubuque County, IA
Federal outage records (
EAGLE-I, kept by the U.S. Department of Energy) show
286 notable outages (200+ customers at peak) here between 2014 and 2025.
Typical restoration ran ~
1.3 hr (median), and outages here have been most common in summer.
That is shorter than the Iowa norm in the same records, where the typical outage ran ~2 hr.
Largest on record: ~9,599 customers out in July 2017, restored after about 18 hr. The busiest year on record here was 2015.
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 Dubuque County
Communities in Dubuque County include Asbury, Dyersville, Cascade, Peosta, Epworth, Farley, New Vienna and Worthington. 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 Dubuque County, IA?
Report it to your electric utility — crews are dispatched from customer reports. Utilities serving parts of Dubuque include Alliant Energy, Iowa Electric Cooperatives and Cascade Municipal Utilities — 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.
