Montgomery is located in Illinois. Montgomery, Illinois has a population of 20,171. Montgomery is more family-centric than the surrounding county with 42% households with children. The county percentage for households with children is 36%.
The median household income in Montgomery, Illinois is $84,405. The median household income for the surrounding county is $77,297 compared to the national median of $61,963. The median age of people living in Montgomery is 35.4 years.
The average high temperature in July is 84.2 degrees, with an average low temperature in January of 10.5 degrees. The annual precipitation is 38.39.