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Alliant Energy Power Outages — Live Map

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Alliant Energy Power Outage Summary

As of September 17, 2026 at 6:21 PM ET, Alliant Energy reports 4 of 1,014,556 tracked electric customers (<0.01%) without power, across 2 states.

Customers Out
4
Customers Served
1,014,556
Share Without Power
<0.01%
States Served
2

Most Affected Counties served by Alliant Energy

Customers Out %Customers Out
  1. 1Des Moines County17,272 Served<0.01%1
  2. 2Wapello County16,010 Served<0.01%1
  3. 3Lee County15,904 Served<0.01%1
  4. 4Dallas County5,755 Served0.02%1

States Served by Alliant Energy

Iowa505,814 Served4<0.01%Wisconsin508,742 Served00.00%

All Counties served by Alliant Energy

Adair County723 Served00.00%Adams County285 Served00.00%Adams County3,479 Served00.00%Allamakee County5,243 Served00.00%Appanoose County6,031 Served00.00%Benton County6,775 Served00.00%Black Hawk County10 Served00.00%Boone County10,178 Served00.00%Bremer County1,425 Served00.00%Buchanan County2,514 Served00.00%Buena Vista County1,208 Served00.00%Butler County662 Served00.00%Calumet County13 Served00.00%Carroll County55 Served00.00%Cass County830 Served00.00%Cedar County5,073 Served00.00%Cerro Gordo County24,633 Served00.00%Cherokee County16 Served00.00%Chickasaw County539 Served00.00%Clarke County3,462 Served00.00%Clay County1,764 Served00.00%Clayton County5,246 Served00.00%Clinton County19,699 Served00.00%Columbia County21,762 Served00.00%Crawford County6,296 Served00.00%Dallas County5,755 Served10.02%Dane County89,085 Served00.00%Davis County482 Served00.00%Decatur County2,147 Served00.00%Delaware County6,803 Served00.00%Des Moines County17,272 Served1<0.01%Dickinson County12,018 Served00.00%Dodge County22,813 Served00.00%Dubuque County41,307 Served00.00%Emmet County1,249 Served00.00%Fayette County8,950 Served00.00%Floyd County1,544 Served00.00%Fond du Lac County44,556 Served00.00%Franklin County621 Served00.00%Grant County14,017 Served00.00%Green County16,586 Served00.00%Green Lake County11,764 Served00.00%Greene County3,434 Served00.00%Grundy County3,079 Served00.00%Guthrie County2,463 Served00.00%Hamilton County1,504 Served00.00%Hancock County4,264 Served00.00%Hardin County7,181 Served00.00%Henry County2,511 Served00.00%Howard County3,508 Served00.00%Iowa County5,081 Served00.00%Iowa County14,631 Served00.00%Jackson County1,690 Served00.00%Jackson County17 Served00.00%Jasper County12,827 Served00.00%Jefferson County6,692 Served00.00%Jefferson County2,113 Served00.00%Johnson County10,867 Served00.00%Jones County7,958 Served00.00%Juneau County7,888 Served00.00%Kenosha County5,820 Served00.00%Keokuk County4,837 Served00.00%Kossuth County2,211 Served00.00%Lafayette County4,452 Served00.00%Langlade County2,065 Served00.00%Lee County15,904 Served1<0.01%Linn County102,982 Served00.00%Louisa County3,843 Served00.00%Lucas County3,726 Served00.00%Lyon County1,129 Served00.00%Madison County584 Served00.00%Mahaska County652 Served00.00%Manitowoc County26 Served00.00%Marathon County2,480 Served00.00%Marion County9 Served00.00%Marquette County4,105 Served00.00%Marshall County15,587 Served00.00%Menominee County2,708 Served00.00%Mitchell County1,903 Served00.00%Monroe County290 Served00.00%Monroe County8,229 Served00.00%Montgomery County63 Served00.00%Muscatine County1,155 Served00.00%O'Brien County46 Served00.00%Oconto County3 Served00.00%Osceola County1,107 Served00.00%Palo Alto County404 Served00.00%Pocahontas County721 Served00.00%Polk County136 Served00.00%Portage County5,098 Served00.00%Poweshiek County6,832 Served00.00%Richland County3,127 Served00.00%Ringgold County1,830 Served00.00%Rock County70,563 Served00.00%Sac County1 Served00.00%Sauk County26,919 Served00.00%Scott County3,825 Served00.00%Shawano County6,255 Served00.00%Sheboygan County35,895 Served00.00%Sioux County44 Served00.00%Story County11,983 Served00.00%Tama County5,255 Served00.00%Taylor County502 Served00.00%Union County5,374 Served00.00%Van Buren County2,041 Served00.00%Vernon County1,080 Served00.00%Walworth County37,939 Served00.00%Wapello County16,010 Served1<0.01%Warren County533 Served00.00%Washington County10,522 Served00.00%Waupaca County5,959 Served00.00%Waushara County10,444 Served00.00%Wayne County2,596 Served00.00%Webster County241 Served00.00%Winnebago County1,464 Served00.00%Winnebago County7,440 Served00.00%Winneshiek County6,717 Served00.00%Wood County13,111 Served00.00%Worth County3,216 Served00.00%Wright County1,941 Served00.00%Brown County1 ServedData Unavailable — last reading August 25, 2026 at 1:17 PM ETN/AFremont County1 ServedData Unavailable — last reading August 25, 2026 at 1:16 PM ETN/AHumboldt County7 ServedData Unavailable — last reading August 25, 2026 at 1:16 PM ETN/AMonona County11 ServedData Unavailable — last reading August 25, 2026 at 1:16 PM ETN/APottawattamie County1 ServedData Unavailable — last reading August 25, 2026 at 1:16 PM ETN/ARacine County3 ServedData Unavailable — last reading August 25, 2026 at 1:17 PM ETN/A

Outage data is collected directly from utility providers and refreshed approximately every 10 minutes. Last updated: September 17, 2026 at 6:21 PM ET