Lemont is located in Illinois. Lemont, Illinois has a population of 17,018. Lemont is more family-centric than the surrounding county with 33% households with children. The county percentage for households with children is 26%.
The median household income in Lemont, Illinois is $93,120. The median household income for the surrounding county is $63,917 compared to the national median of $61,963. The median age of people living in Lemont is 44 years.
The average high temperature in July is 86.8 degrees, with an average low temperature in January of 14.2 degrees. The annual precipitation is 37.94.