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2021 Iowa Power Outage Report

In 2021, the average Iowa customer went without power for about 2.7 hours — the 35th worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
2.7
Peak customers out
13,943
Rank (worst state)
35th
Counties affected
20

Iowa outages over the decade

Average hours without power per customer, 2021 highlighted.

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

Hardest-hit Iowa counties in 2021

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

1Cerro Gordo County13,9432Pottawattamie County12,8883Polk County9,3434Wright County8,2485Scott County7,4656Jasper County6,9207Iowa County6,6238Linn County6,3599Johnson County5,73810Appanoose County5,38511Mills County5,35312Winneshiek County5,08313Des Moines County4,96614Dallas County4,70415Woodbury County4,65216Howard County4,60917Wapello County4,36518Montgomery County4,34619Page County4,00420Story County3,778

Biggest Iowa outages of 2021

CountyBeganPeak customers out
Cerro Gordo CountyDecember 16, 202113,943
Pottawattamie CountyJuly 10, 202112,888
Polk CountyDecember 15, 20219,343
Polk CountyAugust 31, 20218,325
Wright CountyDecember 15, 20218,248
Polk CountyJune 20, 20217,917
Pottawattamie CountyDecember 15, 20217,608
Scott CountyAugust 11, 20217,465
Cerro Gordo CountyAugust 27, 20217,327
Jasper CountyDecember 16, 20216,920
Iowa by year:20252024202320222020201920182017
Other states in 2021:LAMIWVTXORMS

Part of the 2021 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.