St. Clair County, Illinois
45People killed in 2024
40Fatal crashes
5thRank of 102 counties by deaths
Fatal crashes by month
The most fatal crashes in St. Clair County were in Feb (7). This county accounts for 3.8% of the 1,177 deaths in Illinois; the average county had 11.5. Counts are not adjusted for population or traffic volume.
Next in the state ranking: Lake County (50 deaths), Madison County (39 deaths).