Jefferson County, Illinois
9People killed in 2024
9Fatal crashes
25thRank of 102 counties by deaths
Fatal crashes by month
The most fatal crashes in Jefferson County were in Feb (2). This county accounts for 0.8% of the 1,177 deaths in Illinois; the average county had 11.5. Counts are not adjusted for population or traffic volume.
Small count. Counts for a single year can swing a lot in counties with few crashes. Counties with fewer than 10 fatal crashes are marked "small count".
Next in the state ranking: Grundy County (9 deaths), DeKalb County (9 deaths).