Power Outages in Lake County, SD
As of the latest utility report, no major power outages are reported in Lake County, SD. In 2025, the average customer here lost power for about 1.0 hours.
Lake County, SD is served by 1 tracked utility.
No active power outages are currently reported in Lake County.
No active NWS alerts for Lake County right now.
Lake County has been under 2 National Weather Service alerts recently — most recently a Heat Advisory on July 17, 2026.
- Heat Advisory ×2
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.
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 |
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 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 |
|---|---|---|---|
| SIOUX VALLEY SW ELEC COOP | — | ODIN ✓ | — |
Machine-readable data: /api/v1/counties/46079 and /api/v1/counties/46079/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of South Dakota customers).