age of 18, 12.4% from 18 to 24, 34.3% from 25 to 44, 17.9% from 45 to 64, and 17.1% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 134.4 males. For every 100 females age 18 and over, there were 144.4 males. The median income for a household in the city was $30,857, and the median income for a family was $39,762. Males had a median income of $27,342 versus $19,109 for females. The per capita income for the city was $14,918. About 8.9% of families and 15.6% of the population were below the poverty line, including 21.4% of those under age 18 and 13.8% of those age 65 or over. Government Vandalia is governed using the mayor council system. The council consists of eight members elected from one of four wards with each ward electing two members. The mayor along with the city clerk and treasurer are elected in a citywide vote. Notable people Alfred Elisha Ames, politician and physician Josie Barnes, professional ten-pin bowler and winner of the 2021 U.S. Women's Open Henry P. H. Bromwell, U.S. Representative from Illinois John J. Bullington, Illinois politician H. Joel Deckard, U.S. Representative from Indiana Levi Davis, Illinois Auditor and lawyer William Lee D. Ewing, U.S. Senator and fifth Governor of Illinois William M. Farmer, Chief Justice of the Illinois Supreme Court Ferris Foreman, politician and Army colonel John W. Heavey, U.S. Army brigadier general, chief of the National Guard Bureau Miles E. Mills, Illinois politician and educator Frederick Remann, Illinois politician Levi Stewart, Mormon pioneer June Squibb, Academy Award-nominated actress In fiction and popular culture In Jules Verne's An Antarctic Mystery (1897), Dirk Peters, AKA Hunt, lived for many years in Vandalia before resuming his quest for his companion Arthur Gordon Pym. This novel is an imagined sequel to Edgar Allan Poe's only novel, The Narrative of Arthur Gordon Pym of Nantucket. The case of Frier v. City of Vandalia was a case decided by the Seventh Circuit Court of Appeals on the issue of res judicata. The case originally involved a parking dispute in Vandalia but became a pivotal case in civil procedure. Four US Navy ships have been named for Vandalia. References External links City of Vandalia Cities in Illinois Cities in Fayette County, Illinois Illinois County seats in Illinois Populated places established in 1819 1819