When will the power be back in Williamson County, IL?
See current outages near you, plus an independent restoration forecast when enough trend data exists · Illinois
No significant county-wide outage reported in Williamson County, IL right now.
Lights out where you are? Very small or brand-new outages can take a few minutes to reach county-level data — check your exact address on the live map, and see what to check before you report it.
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Elsewhere in Illinois: 132 customers reported out — statewide status.
Updated 10:31 PM CDT.
⚡ No power in Williamson, IL? We'll notify you when the outage we're tracking looks mostly restored.
An alert when an outage is detected here, another once a dependable restoration estimate is ready, and an all-clear when the outage we're tracking looks substantially restored (~90% of customers back). No email, no account — anonymous usage stats only.
Our restoration forecast is independent and unofficial, never the utility's commitment. How it works · How accurate it has been
Who serves Williamson County?
County-wide coverage, with utility detail where available. Serving utilities tracked here include Ameren, Egyptian Electric Cooperative Association and Illinois Electric Cooperatives ↗, alongside the nationwide county-by-county tally. Multiple utilities serve parts of this area — enter a street address above for your exact provider.
Outage history — Williamson County, IL
Last significant outage: Sep 15, 2026 — peaked at 534 customers, restored in ~1.2 hr (heat event).
Across the 4 significant outages tracked here, restoration typically ran about 1 hr.
This county-level list covers larger outages (about 200+ customers at peak, lasting 30 minutes or more) — oldest listed: Jul 31, 2026. Smaller or briefer interruptions aren't listed.
Longer-term outage history — Williamson County, IL
Federal outage records (EAGLE-I, kept by the U.S. Department of Energy) show
293 notable outages (200+ customers at peak) here between 2014 and 2025 — including 1 major event of 10,000+ customers.
Typical restoration ran ~2.3 hr (median), and outages here have been most common in summer.
Largest on record: ~10,894 customers out in January 2025, restored after about 3.9 days. The busiest year on record here was 2025.
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 Williamson County
Communities in Williamson County include Marion, Herrin, Carterville, Johnston City, Cambria, Crainville, Energy and Hurst. Searches and the live map cover every address in the county, named here or not.
Nearby counties & areas
