Andover is located in Illinois. Andover, Illinois has a population of 428. Andover is more family-centric than the surrounding county with 43.9% of the households containing married families with children. The county average for households married with children is 28.83%.
The median household income in Andover, Illinois is $58,295. The median household income for the surrounding county is $62,097 compared to the national median of $69,021. The median age of people living in Andover is 43.1 years.
The average high temperature in July is 85 degrees, with an average low temperature in January of 14 degrees. The average rainfall is approximately 37.3 inches per year, with 26.6 inches of snow per year.
