01 / ANNUAL TRACE
Illinois Flash Flood reports by year
NOAA recorded 951 Illinois Flash Flood reports across the complete 2016–2025 period.
IL EVENT-TYPE FILE2016—2025
ILLINOIS
Flash Flood reports
NOAA recorded 951 county-coded Flash Flood reports across 102 Illinois reporting areas from 2016 through 2025, including 3 reported injuries and 4 reported fatalities in the official archive.
Source: NOAA Storm Events details table · Complete years 2016–2025 · Compiled 16 Sep 2026
Reports951county-coded rows
County areas102represented
Injuries3direct + indirect
Fatalities4direct + indirect
03 / COUNTY BREAKDOWN
All Illinois records →Local Illinois Flash Flood analyses
The directory lists 102 Illinois reporting areas represented in this statewide Flash Flood record.
Cook82 reportsExplore →Du Page28 reportsExplore →Sangamon28 reportsExplore →Will24 reportsExplore →Clay22 reportsExplore →Champaign20 reportsExplore →Effingham19 reportsExplore →Perry19 reportsExplore →Stephenson18 reportsExplore →Lake18 reportsExplore →Franklin17 reportsExplore →Winnebago17 reportsExplore →Shelby17 reportsExplore →St. Clair16 reportsExplore →Williamson16 reportsExplore →Jackson15 reportsExplore →Wayne15 reportsExplore →Bureau15 reportsExplore →Peoria15 reportsExplore →Mcdonough15 reportsExplore →Hamilton15 reportsExplore →Mclean15 reportsExplore →Tazewell15 reportsExplore →Crawford13 reportsExplore →Jo Daviess13 reportsExplore →Christian13 reportsExplore →Lawrence13 reportsExplore →Rock Island12 reportsExplore →Saline12 reportsExplore →Jefferson12 reportsExplore →Fulton12 reportsExplore →Macon11 reportsExplore →Woodford10 reportsExplore →Henry9 reportsExplore →Vermilion9 reportsExplore →Marion9 reportsExplore →Kendall9 reportsExplore →Coles8 reportsExplore →Randolph8 reportsExplore →Richland8 reportsExplore →Carroll8 reportsExplore →Ogle8 reportsExplore →Union8 reportsExplore →Morgan8 reportsExplore →Adams7 reportsExplore →Mchenry7 reportsExplore →Logan7 reportsExplore →Edgar7 reportsExplore →La Salle7 reportsExplore →Jasper7 reportsExplore →Hancock7 reportsExplore →De Kalb7 reportsExplore →Cumberland7 reportsExplore →Whiteside7 reportsExplore →Montgomery7 reportsExplore →Livingston7 reportsExplore →Alexander6 reportsExplore →Iroquois6 reportsExplore →Kane6 reportsExplore →Kankakee6 reportsExplore →Knox6 reportsExplore →Wabash6 reportsExplore →Marshall6 reportsExplore →Lee6 reportsExplore →Boone5 reportsExplore →Edwards5 reportsExplore →Douglas5 reportsExplore →Grundy5 reportsExplore →Monroe5 reportsExplore →