Green Valley is located in Illinois. Green Valley, Illinois has a population of 684. Green Valley is more family-centric than the surrounding county with 37.9% of the households containing married families with children. The county average for households married with children is 30.82%.
The median household income in Green Valley, Illinois is $53,229. The median household income for the surrounding county is $60,874 compared to the national median of $57,652. The median age of people living in Green Valley is 37.3 years.
The average high temperature in July is 85.8 degrees, with an average low temperature in January of 15.9 degrees. The average rainfall is approximately 38.5 inches per year, with 23.3 inches of snow per year.