massoutage

2019 Iowa Power Outage Report

In 2019, the average Iowa customer went without power for about 2.2 hours — the 37th worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
2.2
Peak customers out
16,814
Rank (worst state)
37th
Counties affected
20

Iowa outages over the decade

Average hours without power per customer, 2019 highlighted.

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

Hardest-hit Iowa counties in 2019

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

1Polk County16,8142Black Hawk County14,0373Dickinson County9,8614Dubuque County8,3675Marshall County7,1666Johnson County6,9427Wapello County6,7138Clinton County6,4849Scott County5,87710Fayette County5,53911Union County5,45312Pottawattamie County5,41813Warren County4,91114Sioux County4,63615Woodbury County4,51716Linn County4,20417Worth County3,77218Hancock County3,72019Lee County3,70420Jasper County3,286

Biggest Iowa outages of 2019

CountyBeganPeak customers out
Polk CountyAugust 20, 201916,814
Polk CountyFebruary 12, 201915,414
Black Hawk CountySeptember 9, 201914,037
Polk CountyMay 16, 201910,372
Dickinson CountyMarch 9, 20199,861
Dubuque CountyJune 30, 20198,367
Polk CountyJuly 1, 20197,844
Polk CountySeptember 10, 20197,329
Marshall CountyJune 15, 20197,166
Johnson CountyJuly 3, 20196,942
Iowa by year:20252024202320222021202020182017
Other states in 2019:WVNCMILACAVT

Part of the 2019 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.