19.3% from 45 to 64, and 16.0% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 88.7 males. For every 100 females age 18 and over, there were 84.9 males. The median income for a household in the city was $46,938, and the median income for a family was $57,894. Males had a median income of $40,892 versus $24,685 for females. The per capita income for the city was $21,081. About 2.1% of families and 3.8% of the population were below the poverty line, including 2.8% of those under age 18 and 9.0% of those age 65 or over. Education Waterloo has a number of public and parochial schools. All public schools are a part of Waterloo Community Unit District #5. Elementary Zahnow Elementary School (Public K–1) Home of the Junior Bulldogs (formerly Bears) Rogers Elementary School (Public 2–3) Home of the Bulldogs Gardner Elementary School (Public 4–5) Home of the Bulldogs SS Peter and Paul Grade School (Catholic K–8) Home of the Falcons Junior high Waterloo Junior High School (Public 6–8) Home of the Bulldogs (formerly Indians) High school Waterloo High School (Public) Home of the Bulldogs Gibault Catholic High School (Catholic) Home of the Hawks According to the Illinois Department of Commerce and Economic Opportunity, schools in Waterloo had a total combined enrollment of 3,284 students being instructed by 210 total teachers. Registered Historic Places Capt. James Moore Farmstead Fountain Creek Bridge near Waterloo Peterstown House Waterloo Historic District (Illinois) Climate The climate in this area is characterized by hot, humid summers and generally cool winters. According to the Köppen Climate Classification system, Waterloo has a humid subtropical climate, abbreviated "Cfa" on climate maps. Notable people Albert Bollinger, Illinois state senator, lawyer, and businessman, lived in Waterloo. Lee Eilbracht, All-America baseball player and long-time coach at University of Illinois. Thomas B. Needles, Illinois politician and businessman, was born in Waterloo. References External links City of Waterloo Waterloo Community Unit District #5 Download map of Waterloo in .pdf Waterloo - General Information Cities in Illinois Cities in Monroe County, Illinois County seats in Illinois Metro East Populated places established in 1849 1849 establishments in Illinois