Coal Valley is located in Illinois. Coal Valley, Illinois has a population of 3,552. Coal Valley is more family-centric than the surrounding county with 27% households with children. The county percentage for households with children is 26%.
The median household income in Coal Valley, Illinois is $61,582. The median household income for the surrounding county is $57,012 compared to the national median of $66,222. The median age of people living in Coal Valley is 46.6 years.
The average high temperature in July is 86.1 degrees, with an average low temperature in January of 12.3 degrees. The annual precipitation is 38.04.