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2025 Wisconsin Power Outage Report

In 2025, the average Wisconsin customer went without power for about 3.9 hours — the 31st worst of any US state that year, 1.2× the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
3.9
Peak customers out
34,345
Rank (worst state)
31st
Counties affected
20

Wisconsin outages over the decade

Average hours without power per customer, 2025 highlighted.

1.5h20151.9h20162.9h20171.7h20184.4h20191.8h20204.7h20214.6h20223.4h20234.6h20243.9h2025

Hardest-hit Wisconsin counties in 2025

By peak customers out during the year's worst event.

1Milwaukee County34,3452Oneida County15,1063Waukesha County14,1534Langlade County13,6965St. Croix County12,1216Dodge County9,5327Forest County9,5268Vilas County9,4119Door County9,29410Eau Claire County9,16211Marinette County8,93612Marathon County8,53713Dane County8,49714Oconto County8,47215Racine County8,45016Outagamie County8,32017Jefferson County7,95318Brown County7,73219Ozaukee County6,94220Barron County6,923

Biggest Wisconsin outages of 2025

CountyBeganPeak customers out
Milwaukee CountyAugust 9, 202534,345
Milwaukee CountyJune 21, 202517,089
Milwaukee CountyMay 15, 202516,409
Milwaukee CountyNovember 29, 202515,616
Oneida CountyMarch 30, 202515,106
Waukesha CountyAugust 9, 202514,153
Langlade CountyMarch 30, 202513,696
St. Croix CountyJuly 29, 202512,121
Dodge CountyMay 15, 20259,532
Forest CountyMarch 30, 20259,526
Wisconsin by year:20242023202220212020201920182017
Other states in 2025:WVMIAKPANCMO

Part of the 2025 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.