65 or older. The average household size was 2.75 and the average family size was 3.16. The age distribution was 30.2% under the age of 18, 8.6% from 18 to 24, 34.3% from 25 to 44, 19.2% from 45 to 64, and 7.7% 65 or older. The median age was 33 years. For every 100 females, there were 96.0 males. For every 100 females age 18 and over, there were 91.5 males. The median household income was $53,720 and the median family income was $59,643. Males had a median income of $41,705 versus $27,542 for females. The per capita income for the city was $21,174. About 2.1% of families and 3.4% of the population were below the poverty line, including 3.4% of those under age 18 and 4.5% of those age 65 or over. Notable people Paul Simon, US senator; lived in Troy and was the youngest editor of the town's newspaper (Troy Tribune) Jesse L. Simpson, Chief Justice of the Illinois Supreme Court; born in Troy Bob Turley, Cy Young Award-winning pitcher for the St. Louis Browns, Baltimore Orioles, New York Yankees, Los Angeles Angels, and Boston Red Sox; born in Troy References External links Triad Community Schools Unit District #2 Tri-Township Public Library Troy Chamber of Commerce Cities in Madison County, Illinois Cities in Illinois Populated places established in 1819 1819 establishments in Illinois