Union County, SD Power Outages
Only some utilities serving Union County, South Dakota share live outage data (MidAmerican Energy Co), and none of them report outages here right now. Southeastern Electric Coop Inc - (SD) and Clay-Union Electric Corp do not share live data, so check their outage maps for real-time status.
Union 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.
Union County power outage history
Every significant outage recorded in Union County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 79 significant power outages in Union County, meaning events that left at least 1% of customers in the dark. The largest (Sep 5–6, 2016) came when severe thunderstorms left 3,566 customers (100% of the county) without power.
From 2018 to 2025, the average customer here lost about 3 hr 17 min of power per year, close to the South Dakota average of 3 hr 46 min. That ranks 39th of 65 South Dakota counties for outage time, where 1st has the most.
July is the riskiest month: it accounted for 36% of all customer outage time from 2018 to 2025. On 38 days in that period, at least 5% of customers were out at the same time. Outage time in Union County has risen recently: about 4 hr 39 min per customer per year in 2022–2025, versus 1 hr 29 min in 2018–2021.
The most recent significant outage on record (Oct 21, 2025) affected 240 customers (7.1%) amid high winds.
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Sep 5–6, 2016 | 3,566(100%) | 2 | Severe thunderstorms |
| 2 | Jul 22–23, 2022 | 2,144(63.8%) | 2 | Severe thunderstorms |
| 3 | Oct 3, 2021 | 1,843(54.9%) | 1 | No major storm reported |
| 4 | Jul 13, 2024 | 1,806(53.8%) | 1 | Severe thunderstorms |
| 5 | Jul 11–12, 2016 | 1,781(53%) | 2 | 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 Union County?
Electric companies with service territory in Union County (EIA-861, 2025)
| Utility | Type | Customers (SD) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| Southeastern Electric Coop Inc - (SD) | Cooperative | 24,550 | Not reporting | |
| MidAmerican Energy | Investor Owned | 5,389 | Reporting | |
| Clay-Union Electric Corp | Cooperative | 3,917 | Not reporting | |
| Union County Electric Coop Inc | Cooperative | 1,685 | Not reporting | |
| City of Beresford | Municipal | 1,261 | Not reporting | |
| City of Elk Point | Municipal | 1,044 | 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 Union County outage headlines in the past week.
Union County power outage FAQ
Is the power out in Union County right now?
No outages are currently reported for Union 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 Union County?
According to EIA-861 service territory data, Southeastern Electric Coop Inc - (SD), MidAmerican Energy Co, Clay-Union Electric Corp, Union County Electric Coop Inc and 3 others provide electric service in Union County, South Dakota.
What was the worst power outage in Union County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Sep 5–6, 2016. It peaked at 3,566 customers without power (100% of the county). NOAA storm reports for that period point to severe thunderstorms.
How often does the power go out in Union County?
EAGLE-I has recorded 79 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 3 hr 17 min of power per year, and on 38 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. "Union County, SD Power Outages." Accessed November 3, 2026. https://poweroutagetracker.com/outages/south-dakota/union-county