See current outages near you, plus an independent restoration forecast when enough trend data exists · South Dakota
Our restoration forecast is independent and unofficial, never the utility's commitment. How it works · How accurate it has been
Who serves Lake County?
County-wide coverage, with utility detail where available. Serving utilities tracked here include Sioux Valley Energy, Xcel Energy, Otter Tail Power ↗ and Southeastern Electric Cooperative, alongside the nationwide county-by-county tally. City of Madison 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. For the parent company's combined picture, see Xcel Energy outages across every state it serves.
Outage history — Lake County, SD
Last significant outage: Sep 1, 2026 — peaked at 467 customers, restored in ~48 min (wind/storm).
This county-level list covers larger outages (about 200+ customers at peak, lasting 30 minutes or more) — oldest listed: Sep 1, 2026. Smaller or briefer interruptions aren't listed.
Longer-term outage history — Lake County, SD
Federal outage records (
EAGLE-I, kept by the U.S. Department of Energy) show
41 notable outages (200+ customers at peak) here between 2014 and 2025.
Typical restoration ran ~
1.5 hr (median), and outages here have been most common in summer.
That is shorter than the South Dakota norm in the same records, where the typical outage ran ~2.5 hr.
Largest on record: ~4,106 customers out in October 2017, restored after about 4.8 hr.
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.
Communities covered
Communities in Lake County include Madison, Wentworth, Ramona, Brant Lake, Nunda, Badus, Brant Lake South and Chester. Searches and the live map cover every address in the county, named here or not.
