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2023 Iowa Power Outage Report

In 2023, the average Iowa customer went without power for about 2.0 hours — the 47th worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
2.0
Peak customers out
30,010
Rank (worst state)
47th
Counties affected
20

Iowa outages over the decade

Average hours without power per customer, 2023 highlighted.

1.1h20151.8h20162.0h20172.2h20182.2h201927.4h20202.7h20211.6h20222.0h20233.2h20242.9h2025

Hardest-hit Iowa counties in 2023

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

1Linn County30,0102Lee County14,3253Johnson County12,2934Pottawattamie County8,1165Scott County7,9526Delaware County7,1987Cerro Gordo County7,1868Story County6,1119Wapello County5,74210Polk County5,67511Appanoose County5,30112Des Moines County4,73213Dubuque County4,72114Clinton County4,58515Montgomery County4,52416Cedar County3,73917Jefferson County3,58318Boone County3,41419Dallas County3,38820Hancock County3,371

Biggest Iowa outages of 2023

CountyBeganPeak customers out
Linn CountyJuly 28, 202330,010
Lee CountyJune 29, 202314,325
Johnson CountyMarch 31, 202312,293
Linn CountyMarch 31, 20238,162
Pottawattamie CountyJuly 12, 20238,116
Scott CountyMarch 25, 20237,952
Delaware CountyMarch 31, 20237,198
Cerro Gordo CountyAugust 14, 20237,186
Johnson CountyMay 6, 20236,587
Johnson CountyNovember 2, 20236,302
Iowa by year:20252024202220212020201920182017
Other states in 2023:MEMIKYOKARWV

Part of the 2023 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.