Manlius is located in Illinois. Manlius, Illinois has a population of 223. Manlius is less family-centric than the surrounding county with 23.64% of the households containing married families with children. The county average for households married with children is 27.98%.
The median household income in Manlius, Illinois is $49,375. The median household income for the surrounding county is $59,407 compared to the national median of $69,021. The median age of people living in Manlius is 49.6 years.
The average high temperature in July is 84.1 degrees, with an average low temperature in January of 13.6 degrees. The average rainfall is approximately 37.7 inches per year, with 29.6 inches of snow per year.