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2016 Illinois Power Outage Report

In 2016, the average Illinois customer went without power for about 1.5 hours — the 41st worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
1.5
Peak customers out
95,661
Rank (worst state)
41st
Counties affected
20

Illinois outages over the decade

Average hours without power per customer, 2016 highlighted.

2.3h20151.5h20161.4h20172.5h20181.8h20195.9h20202.3h20211.6h20224.0h20233.0h20242.5h2025

Hardest-hit Illinois counties in 2016

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

1Cook County95,6612St. Clair County40,8613Madison County19,6954Knox County10,4845Rock Island County10,3196Logan County8,8587Coles County8,5518Douglas County7,8479DuPage County7,83310Kankakee County7,67611Vermilion County7,52712Clinton County7,16613DeKalb County7,09714Peoria County6,88315Monroe County6,84716Adams County6,70317Livingston County6,10418Lake County5,99219Piatt County5,10320Williamson County5,019

Biggest Illinois outages of 2016

CountyBeganPeak customers out
Cook CountyFebruary 19, 201695,661
St. Clair CountyJuly 1, 201640,861
Madison CountyMay 7, 201619,695
Cook CountyFebruary 24, 201612,867
Cook CountyMarch 15, 201612,280
Knox CountyJuly 10, 201610,484
Rock Island CountyJuly 13, 201610,319
Rock Island CountyMarch 15, 201610,162
Madison CountyMarch 29, 20169,916
Knox CountySeptember 24, 20168,868
Illinois by year:20252024202320222021202020192018
Other states in 2016:NCWVSCVAMEFL

Part of the 2016 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.