Lyman County, SD Power Outages
Utilities serving Lyman County, South Dakota don't yet share live outage data with DOE's ODIN feed. Check your electric company's outage map (listed below) for real-time status.
Lyman 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.
Lyman County power outage history
Every significant outage recorded in Lyman County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 90 significant power outages in Lyman County, meaning events that left at least 1% of customers in the dark. The largest (Jul 6, 2023) came when flooding left 1,281 customers (43.1% of the county) without power.
From 2018 to 2025, the average customer here lost about 5 hr 29 min of power per year, more than the South Dakota average of 3 hr 46 min. That ranks 23rd of 65 South Dakota counties for outage time, where 1st has the most.
December is the riskiest month: it accounted for 56% of all customer outage time from 2018 to 2025. On 51 days in that period, at least 5% of customers were out at the same time. Outage time in Lyman County has fallen recently: about 2 hr 24 min per customer per year in 2022–2025, versus 9 hr 34 min in 2018–2021.
The most recent significant outage on record (Dec 23, 2025) affected 106 customers (3.6%).
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Jul 6, 2023 | 1,281(43.1%) | 1 | Flooding |
| 2 | Feb 16–17, 2021 | 1,034(34.8%) | 2 | Winter Storm Uri |
| 3 | Mar 15–16, 2021 | 839(28.3%) | 2 | Winter storm |
| 4 | Oct 12, 2020 | 628(21.2%) | 1 | High winds |
| 5 | Jul 28, 2019 | 521(17.5%) | 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 Lyman County?
Electric companies with service territory in Lyman County (EIA-861, 2025)
| Utility | Type | Customers (SD) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| West Central Electric Coop Inc - (SD) | Cooperative | 6,815 | Not reporting | |
| Rosebud Electric Coop Inc | Cooperative | 5,697 | 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 Lyman County outage headlines in the past week.
Lyman County power outage FAQ
Is the power out in Lyman County right now?
No outages are currently reported for Lyman 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 Lyman County?
According to EIA-861 service territory data, West Central Electric Coop Inc - (SD), Rosebud Electric Coop Inc, WAPA-- Western Area Power Administration provide electric service in Lyman County, South Dakota.
What was the worst power outage in Lyman County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Jul 6, 2023. It peaked at 1,281 customers without power (43.1% of the county). NOAA storm reports for that period point to flooding.
How often does the power go out in Lyman County?
EAGLE-I has recorded 90 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 5 hr 29 min of power per year, and on 51 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. "Lyman County, SD Power Outages." Accessed November 3, 2026. https://poweroutagetracker.com/outages/south-dakota/lyman-county