Waukesha County, WI Power Outages
Utilities serving Waukesha County, Wisconsin 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.
Waukesha County on the Wisconsin outage map
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- Minor
- Moderate
- Major
- Severe
- Limited data
Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
Waukesha County power outage history
Every significant outage recorded in Waukesha County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 273 significant power outages in Waukesha County, meaning events that left at least 1% of customers in the dark. The largest (Aug 11–14, 2021) came when severe thunderstorms left 45,425 customers (31.7% of the county) without power.
From 2018 to 2025, the average customer here lost about 7 hr of power per year, more than the Wisconsin average of 3 hr 38 min. That ranks 13th of 72 Wisconsin counties for outage time, where 1st has the most.
August is the riskiest month: it accounted for 22% of all customer outage time from 2018 to 2025. On 34 days in that period, at least 5% of customers were out at the same time. Outage time in Waukesha County has risen recently: about 7 hr 47 min per customer per year in 2022–2025, versus 6 hr 13 min in 2018–2021.
The most recent significant outage on record (Nov 26–27, 2025) affected 6,104 customers (4.3%) amid a winter storm.
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Aug 11–14, 2021 | 45,425(31.7%) | 4 | Severe thunderstorms |
| 2 | Jan 9–17, 2024 | 34,927(24.4%) | 9 | Winter storm |
| 3 | Jul 28–31, 2023 | 23,527(16.4%) | 4 | Severe thunderstorms |
| 4 | Jun 27 – Jul 3, 2019 | 21,890(15.3%) | 7 | Severe thunderstorms |
| 5 | Dec 16–17, 2021 | 18,027(12.6%) | 2 | High winds |
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 Waukesha County?
Electric companies with service territory in Waukesha County (EIA-861, 2025)
| Utility | Type | Customers (WI) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| We Energies | Investor Owned | 1,228,534 | Not reporting | |
| Oconomowoc Utilities | Municipal | 11,754 | Not reporting |
Customer counts are each utility's statewide total in Wisconsin. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No Waukesha County outage headlines in the past week.
Cities in Waukesha County
Waukesha, Brookfield, Menomonee Falls, New Berlin, Muskego, Oconomowoc, Pewaukee
Nearby counties
Waukesha County power outage FAQ
Is the power out in Waukesha County right now?
No outages are currently reported for Waukesha 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 Waukesha County?
According to EIA-861 service territory data, Wisconsin Electric Power Co, Oconomowoc Utilities provide electric service in Waukesha County, Wisconsin.
What was the worst power outage in Waukesha County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Aug 11–14, 2021. It peaked at 45,425 customers without power (31.7% of the county). NOAA storm reports for that period point to severe thunderstorms.
How often does the power go out in Waukesha County?
EAGLE-I has recorded 273 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 7 hr of power per year, and on 34 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. "Waukesha County, WI Power Outages." Accessed November 3, 2026. https://poweroutagetracker.com/outages/wisconsin/waukesha-county