Lake County, SD Power Outages
Only some utilities serving Lake County, South Dakota share live outage data (Sioux Valley SW Elec Coop), and none of them report outages here right now. Northern States Power Co - Minnesota and Southeastern Electric Coop Inc - (SD) do not share live data, so check their outage maps for real-time status.
Lake County on the South Dakota outage map
- Normal
- Minor
- Moderate
- Major
- Severe
- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
Lake County power outage history
Every significant outage recorded in Lake County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 88 significant power outages in Lake County, meaning events that left at least 1% of customers in the dark. The largest (Oct 2–3, 2017) left 4,106 customers (50.9% of the county) without power. NOAA recorded no major storm in the area at the time.
From 2018 to 2025, the average customer here lost about 4 hr 25 min of power per year, more than the South Dakota average of 3 hr 46 min. That ranks 29th of 65 South Dakota counties for outage time, where 1st has the most.
May is the riskiest month: it accounted for 54% of all customer outage time from 2018 to 2025. On 19 days in that period, at least 5% of customers were out at the same time. Outage time in Lake County has risen recently: about 5 hr 44 min per customer per year in 2022–2025, versus 3 hr 6 min in 2018–2021.
The most recent significant outage on record (Nov 21, 2025) affected 105 customers (1.3%).
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Oct 2–3, 2017 | 4,106(50.9%) | 2 | No major storm reported |
| 2 | May 12–17, 2022 | 3,402(42.2%) | 6 | Severe thunderstorms |
| 3 | Nov 8, 2017 | 2,421(30%) | 1 | No major storm reported |
| 4 | Nov 10, 2022 | 1,337(16.6%) | 1 | Ice storm |
| 5 | May 30, 2022 | 905(11.2%) | 1 | Severe thunderstorms |
Hours without power per customer, by year
When outages happen
Source: DOE/ORNL EAGLE-I recorded electricity outages, 2014–2025 (CC BY 4.0), with likely causes from the NOAA NCEI Storm Events Database. EAGLE-I coverage was partial before 2018, so averages use 2018–2025. Peak counts are the highest number of customers out at one time.
Who provides electricity in Lake County?
Electric companies with service territory in Lake County (EIA-861, 2025)
| Utility | Type | Customers (SD) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| Xcel Energy (Minnesota, North Dakota, South Dakota) | Investor Owned | 107,985 | Not reporting | |
| Sioux Valley SW Elec Coop | Cooperative | 26,620 | Reporting | |
| Southeastern Electric Coop Inc - (SD) | Cooperative | 24,550 | Not reporting | |
| Otter Tail Power | Investor Owned | 12,464 | Not reporting | |
| City of Madison - (SD) | Municipal | 3,361 | Not reporting | |
| WAPA-- Western Area Power Administration | Federal | 25 | Not reporting |
Customer counts are each utility's statewide total in South Dakota. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No Lake County outage headlines in the past week.
Lake County power outage FAQ
Is the power out in Lake County right now?
No outages are currently reported for Lake County by participating utilities. Live coverage is limited here, so If your power is out, report it to your electric company.
Which electric company serves Lake County?
According to EIA-861 service territory data, Northern States Power Co - Minnesota, Sioux Valley SW Elec Coop, Southeastern Electric Coop Inc - (SD), Otter Tail Power Co and 2 others provide electric service in Lake County, South Dakota.
What was the worst power outage in Lake County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Oct 2–3, 2017. It peaked at 4,106 customers without power (50.9% of the county). NOAA storm reports for that period point to no major storm reported.
How often does the power go out in Lake County?
EAGLE-I has recorded 88 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 4 hr 25 min of power per year, and on 19 days at least 5% of customers were out at once.
Cite this page
You may reuse our derived data under CC BY 4.0 with attribution. Underlying government data is public domain.
PowerOutageTracker.com. "Lake County, SD Power Outages." Accessed November 3, 2026. https://poweroutagetracker.com/outages/south-dakota/lake-county