Jefferson County, IL

Headnote
JEFFERSON COUNTY, situated toward the south part of Illinois. Area, 576 square miles. Face of the country level. Seat of justice, Mount Vernon. Pop. in 1820, 691; in 1830, 2,555; in 1840, 5,762; in 1850, 8,109. (Fanning's, 1853)
    Place Unit Type
    County
    Containing Unit
    How to Cite This Page: "Jefferson County, IL," House Divided: The Civil War Research Engine at Dickinson College, https://hd.housedivided.dickinson.edu/index.php/node/16500.