Power Outages in Lake County, SD
Northern States Power Co - Minnesota and Otter Tail Power Co have not reported outages here, but they only publishactive outages, so that isn't a confirmed all-clear. Sioux Valley SW Elec Coop and Southeastern Electric Coop Inc - (SD) publish only a system-wide total, not county figures. There is no live feed for City of Madison - (SD) and WAPA-- Western Area Power Administration. In 2025, the average customer here lost power for about 1.0 hours.
Lake County, SD is served by 6 tracked utilities.
Cite this data
- URL
- https://massoutage.com/south-dakota/lake-county
- As of
- Not available
- Publisher
- MassOutage
MassOutage, "Power Outages in Lake County, SD". https://massoutage.com/south-dakota/lake-county
Northern States Power Co - Minnesota and Otter Tail Power Co only appearin feeds while reporting outages, so no report isn't a confirmed all-clear.
Sioux Valley SW Elec Coop and Southeastern Electric Coop Inc - (SD) publish no county-level figures.
No live feed for City of Madison - (SD) and WAPA-- Western Area Power Administration: outages in theirservice area won't show here.
0.0%of this county's ~8,858 customers are served by utilities with a county-level live feed.
We can't see outages for: City of Madison - (SD), WAPA-- Western Area Power Administration. Their customers are not in any number on this page; check their own outage maps.
Only visible while reporting outages: Northern States Power Co - Minnesota, Otter Tail Power Co. Zero here is not a confirmed all-clear.
System-wide total only, no county split: Sioux Valley SW Elec Coop, Southeastern Electric Coop Inc - (SD).
| Utility | Feed | Out | Served | % out | Small outages | Incidents | Utility ETR | As of |
|---|---|---|---|---|---|---|---|---|
| Northern States Power Co - Minnesota | Outages only | none reported | - | - | - | - | - | - |
| Otter Tail Power Co | Outages only | none reported | - | - | - | - | - | - |
| Sioux Valley SW Elec Coop | Live · total only | not by county | - | - | - | - | - | - |
| Southeastern Electric Coop Inc - (SD) | Live · total only | not by county | - | - | - | - | - | - |
| City of Madison - (SD) | No live feed | can't see | - | - | - | - | - | - |
| WAPA-- Western Area Power Administration | No live feed | can't see | - | - | - | - | - | - |
Electricity-dependent residents
HHS emPOWER · data October 7, 2026Medicare beneficiaries in Lake Countywho rely on electricity-dependent medical equipment (ventilators, oxygen concentrators, home dialysis, powered wheelchairs, and more). HHS reports counts of 1–10 as “≤11”. Medicare only, so the full at-risk population is larger.
By ZIP code (6)
| ZIP | Power-dependent | Ventilators | O2 concentrators | Home dialysis |
|---|---|---|---|---|
| 57042 | 95 | ≤11 | 79 | 0 |
| 57075 | 13 | ≤11 | 13 | 0 |
| 57076 | ≤11 | 0 | ≤11 | 0 |
| 57054 | ≤11 | 0 | ≤11 | 0 |
| 57050 | ≤11 | 0 | ≤11 | 0 |
| 57016 | ≤11 | ≤11 | ≤11 | 0 |
Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.
Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for Lake County or any town and utility in it.
No active NWS alerts for Lake County right now.
Lake County has been under 11 National Weather Service alerts recently, most recently a Dense Fog Advisory on October 12, 2026.
- Dense Fog Advisory ×10
- Special Weather Statement ×1
Hardest-hit cities in Lake County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Lake County went about 1.0 hours without power. Peak simultaneous outage on record reached 4,106 customers.
The US EIA reports South Dakota utilities averaged 4.7 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 1.0 hrs.
Worst year here was 2022 (peak 3,402 customers out) · decade average 3.7 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 9 | 193 | 0.1 |
| 2016 | 8 | 291 | 0.1 |
| 2017 | 69 | 4,106 | 4.8 |
| 2018 | 8 | 180 | 0.0 |
| 2019 | 124 | 440 | 4.6 |
| 2020 | 116 | 451 | 5.6 |
| 2021 | 215 | 632 | 2.1 |
| 2022 | 169 | 3,402 | 19.8 |
| 2023 | 185 | 631 | 1.2 |
| 2024 | 192 | 562 | 1.0 |
| 2025 | 186 | 893 | 1.0 |
Cost of power in Lake County
ENERGY & AI DEMAND →Estimated residential electricity price for Lake County, customer-weighted across the utilities serving it (US EIA, 2025). Retail prices aren't published at the county level; this is a derived estimate.
- Northern States Power Co - Minnesota13.1¢94,137 cust
- Sioux Valley SW Elec Coop13.9¢22,989 cust
- Southeastern Electric Coop Inc - (SD)13.0¢20,959 cust
- Otter Tail Power Co11.4¢9,094 cust
- City of Madison - (SD)12.4¢2,818 cust
Weighted by each utility's residential customer count (utilities report customers at the state level; a per-county share isn't published). Rising retail prices track a national demand surge; see energy & the data-center boom.
Relatively Moderate ice storms exposure · 3.7 hrs/yr of outages over the last decade.
Power outages in Lake County: FAQ
- How often does Lake County, SD lose power?
- Based on EAGLE-I records, Lake County, SD logged 186 distinct outage events in 2025, averaging about 1.0 hours without power per customer over the year.
- What was the worst power outage in Lake County, SD?
- The largest tracked outage peaked at 4,106 customers without power, beginning October 2, 2017 and lasting about 11h.
- Is there a power outage in Lake County, SD right now?
- No major outage is currently reported for Lake County, SD. Live coverage depends on whether local utilities report to ODIN.
- Which utilities serve Lake County, SD?
- Tracked electric providers include Otter Tail Power Co, Sioux Valley SW Elec Coop.
Outages are tracked at the county level; these ZIP codes fall within Lake County.
57016, 57042, 57050, 57054, 57057, 57075, 57076
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Otter Tail Power Co | 8.9 hrs | Outages only | - |
| Northern States Power Co - Minnesota | 3.6 hrs | Outages only | - |
| Sioux Valley SW Elec Coop | 1.1 hrs | Live · total only | - |
| WAPA-- Western Area Power Administration | - | No live feed | - |
| Southeastern Electric Coop Inc - (SD) | - | Live · total only | - |
| City of Madison - (SD) | - | No live feed | - |
Data from DOE/ORNL ODIN, DOE EAGLE-I, EIA Form 861 (utility reliability), EIA electricity retail prices and FEMA National Risk Index, every source we read. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of South Dakota customers). Machine-readable data: /api/v1/counties/46079 and /api/v1/counties/46079/history.