massoutage

2017 Iowa Power Outage Report

In 2017, the average Iowa customer went without power for about 2.0 hours — the 36th 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
42,670
Rank (worst state)
36th
Counties affected
20

Iowa outages over the decade

Average hours without power per customer, 2017 highlighted.

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

Hardest-hit Iowa counties in 2017

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

1Johnson County42,6702Cerro Gordo County16,1883Polk County16,1134Scott County10,8065Webster County10,4706Dubuque County9,5997Black Hawk County8,3048Marshall County7,7509Woodbury County6,25210Linn County6,14811Worth County5,33112Clayton County4,99413Howard County4,90914Pottawattamie County4,75315Iowa County4,65516Dallas County4,56817Dickinson County4,16018Fayette County3,98319Lee County3,91920Mills County3,779

Biggest Iowa outages of 2017

CountyBeganPeak customers out
Johnson CountyMarch 10, 201742,670
Johnson CountyJuly 9, 201718,167
Cerro Gordo CountyJuly 19, 201716,188
Polk CountyMay 17, 201716,113
Polk CountyAugust 21, 201713,679
Scott CountyMarch 7, 201710,806
Webster CountyMay 17, 201710,470
Dubuque CountyJuly 12, 20179,599
Polk CountyApril 18, 20179,354
Polk CountyJuly 2, 20178,961
Iowa by year:20252024202320222021202020192018
Other states in 2017:FLMEWVNHGARI

Part of the 2017 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.