Power Outages in Walworth County, SD
No live outage feed is available for Walworth County, SD yet — live coverage depends on local utilities reporting to ODIN. In 2025, the average customer here lost power for about 2.3 hours.
Walworth County, SD is served by local tracked utilities.
Walworth County's utilities do not report live data to ODIN, so real-time outage counts aren't available here. The historical record below is complete.
- Heat AdvisoryMODERATE
Walworth County has been under 18 National Weather Service alerts recently — most recently a Heat Advisory on July 19, 2026.
- Heat Advisory ×10
- Extreme Heat Warning ×8
Hardest-hit cities in Walworth County
Where this event is concentrated across the county's towns and townships.
Historical reliability
In 2025, the average customer in Walworth County went about 2.3 hours without power. Peak simultaneous outage on record reached 2,454 customers.
Worst year here was 2017 (peak 2,073 customers out) · decade average 1.8 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2017 | 35 | 2,073 | 3.3 |
| 2018 | 24 | 641 | 1.2 |
| 2019 | 21 | 1,040 | 1.9 |
| 2020 | 20 | 1,025 | 0.6 |
| 2021 | 26 | 2,454 | 3.3 |
| 2022 | 36 | 2,021 | 2.6 |
| 2023 | 28 | 771 | 1.1 |
| 2024 | 32 | 305 | 0.4 |
| 2025 | 43 | 721 | 2.3 |
Relatively Moderate winter weather exposure · 1.8 hrs/yr of outages over the last decade.
FEMA rates this county’s social vulnerability relatively high — outages hit harder where communities are less able to respond and recover.
All hazard rankings →Power outages in Walworth County: FAQ
- How often does Walworth County, SD lose power?
- Based on EAGLE-I records, Walworth County, SD logged 43 distinct outage events in 2025, averaging about 2.3 hours without power per customer over the year.
- What was the worst power outage in Walworth County, SD?
- The largest tracked outage peaked at 2,454 customers without power, beginning October 14, 2021 and lasting about 5h 15m.
- Is there a power outage in Walworth County, SD right now?
- No major outage is currently reported for Walworth County, SD. Live coverage depends on whether local utilities report to ODIN.
Outages are tracked at the county level; these ZIP codes fall within Walworth County.
57420, 57452, 57472, 57631
Machine-readable data: /api/v1/counties/46129 and /api/v1/counties/46129/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of South Dakota customers).