Jefferson County

Illinois · Population: 36,320 · Official website

Jefferson County, Illinois

Congressional representation for Jefferson County, Illinois.

Congressional Districts

District Representative Party
Photo of Mike Bost IL-12 Mike Bost Republican

ZIP Codes

ZIP Code Congressional District
62810 IL-12
62814 IL-12
62816 IL-12
62836 IL-12
62846 IL-12
62864 IL-12
62872 IL-12
62884 IL-12
62894 IL-12
62898 IL-12