Power Outages in Walworth County, WI
As of July 18, 2026 19:06 UTC, about 1 customers are without power in Walworth County, WI across 1 reported incident. In 2025, the average customer here lost power for about 3.0 hours.
Walworth County, WI is served by 1 tracked utility.
Outage started July 18, 2026 · peaked at 1,164 customers without power · still ongoing as of
- Air Quality AlertUNKNOWN
Walworth County has been under 9 National Weather Service alerts recently — most recently a Air Quality Alert on July 18, 2026.
- Heat Advisory ×5
- Air Quality Alert ×4
Latest Walworth County, WI outage updates
A running log of how this outage has changed — updated automatically as utilities report in.
- RESOLVED
Power restored after 22m
- OUTAGE BEGAN
Outage began — 1,151 customers out (2.5% of the county)
Hardest-hit cities in Walworth County
Where this event is concentrated across the county's towns and townships.
Live outage counts are tracked at the county level; a city-by-city split within Walworth Countyisn't available yet.
Historical reliability
In 2025, the average customer in Walworth County went about 3.0 hours without power. Peak simultaneous outage on record reached 15,076 customers.
Worst year here was 2023 (peak 15,076 customers out) · decade average 4.7 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 683 | 4,277 | 2.5 |
| 2016 | 680 | 3,757 | 2.0 |
| 2017 | 633 | 7,329 | 5.6 |
| 2018 | 775 | 5,369 | 2.1 |
| 2019 | 781 | 7,472 | 4.1 |
| 2020 | 730 | 7,530 | 4.7 |
| 2021 | 747 | 7,818 | 4.2 |
| 2022 | 719 | 3,416 | 1.7 |
| 2023 | 770 | 15,076 | 13.4 |
| 2024 | 828 | 13,468 | 8.9 |
| 2025 | 755 | 3,916 | 3.0 |
Relatively Moderate high winds exposure · 4.7 hrs/yr of outages over the last decade.
Power outages in Walworth County: FAQ
- How often does Walworth County, WI lose power?
- Based on EAGLE-I records, Walworth County, WI logged 755 distinct outage events in 2025, averaging about 3.0 hours without power per customer over the year.
- What was the worst power outage in Walworth County, WI?
- The largest tracked outage peaked at 15,076 customers without power, beginning February 22, 2023 and lasting about 3d 9h.
- Is there a power outage in Walworth County, WI right now?
- Yes — about 1 customers are currently without power across 1 reported incident(s).
- Which utilities serve Walworth County, WI?
- Tracked electric providers include Alliant Energy (Interstate Power & Light).
Outages are tracked at the county level; these ZIP codes fall within Walworth County.
53114, 53115, 53120, 53121, 53125, 53128, 53147, 53157, 53176, 53184, 53190, 53191, 53195, 53585
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Alliant Energy (Interstate Power & Light) | — | ODIN ✓ | — |
Machine-readable data: /api/v1/counties/55127 and /api/v1/counties/55127/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Wisconsin customers). Live data as of .