When will the power be back in Jefferson County, MO?
See current outages near you, plus an independent restoration forecast when enough trend data exists · Missouri
1
customer reported out in Jefferson County, MO
Reported by the utility's own live outage data — this county isn't included in the slower nationwide county tally.
Official restoration time (Ameren): Oct 4, 5:45 AM CDT
A small number of customers are reported out county-wide — too few for a live restoration estimate. past outages here typically ran ~5 hr, based on 7 past outages of any size in the same kind of weather.
County-wide data — your specific neighborhood or circuit may be restored earlier or later.
Updated 4:23 AM CDT.
41 county-wide trend of customers without power · last 74 min · tap or hover a point to see its number
Communities with reported outages — from the utilities that publish city-by-city detail for this county
Festus — 1 customer reported out · utility est. Oct 4, 5:45 AM CDT
⚡ No power in Jefferson, MO? 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 Jefferson County?
County-wide coverage, with utility detail where available. Serving utilities tracked here include Ameren and Missouri 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 — Jefferson County, MO
Last significant outage: Oct 1, 2026 — peaked at 2,485 customers, restored in ~1.7 hr (no severe weather).
Across the 15 significant outages tracked here, restoration typically ran about 7 hr.
This county-level list covers larger outages (about 200+ customers at peak, lasting 30 minutes or more) — oldest listed: Jul 26, 2026. Smaller or briefer interruptions aren't listed.
Longer-term outage history — Jefferson County, MO
Federal outage records (EAGLE-I, kept by the U.S. Department of Energy) show
598 notable outages (200+ customers at peak) here between 2014 and 2025 — including 6 major events of 10,000+ customers.
Typical restoration ran ~3.5 hr (median).
That is longer than the Missouri norm in the same records, where the typical outage ran ~2.5 hr.
Largest on record: ~29,155 customers out in March 2025, restored after about 3.3 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 Jefferson County
Communities in Jefferson County include Arnold, Festus, De Soto, Pevely, Herculaneum, Crystal City, Hillsboro and Byrnes Mill. Searches and the live map cover every address in the county, named here or not.
Nearby counties & areas
