massoutage

2019 Illinois Power Outage Report

In 2019, the average Illinois customer went without power for about 1.8 hours — the 43rd worst of any US state that year, below the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
1.8
Peak customers out
17,728
Rank (worst state)
43rd
Counties affected
20

Illinois outages over the decade

Average hours without power per customer, 2019 highlighted.

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

Hardest-hit Illinois counties in 2019

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

1Kankakee County17,7282Kendall County16,5243Will County16,0794Cook County14,6825DuPage County14,6446Lake County11,1177Kane County10,8938McHenry County10,3789Winnebago County8,79510Champaign County8,37011Williamson County7,71912Mercer County6,90713Knox County6,84614Lee County5,84915Madison County5,57416Iroquois County5,56617St. Clair County5,37918Scott County5,37819Peoria County5,27120Franklin County5,056

Biggest Illinois outages of 2019

CountyBeganPeak customers out
Kankakee CountyJune 30, 201917,728
Kendall CountyMarch 28, 201916,524
Will CountyJune 30, 201916,079
Cook CountyJune 23, 201914,682
DuPage CountyJune 30, 201914,644
DuPage CountyDecember 9, 201913,268
Cook CountyAugust 11, 201912,329
Cook CountyNovember 26, 201912,117
Lake CountyAugust 18, 201911,117
Kane CountyJune 30, 201910,893
Illinois 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.