Gazetteer/Almanac
Headnote
JOHNSON COUNTY, situated in the south part of Illinois. Area, 486 square miles. Face of the country uneven; soil fertile. Seat of justice, Vienna. Pop. in 1820, 843; in 1830, 1,596; in 1840, 3,626; in 1850, 4,113. (Fanning's, 1853)