Clayton is located in Illinois. Clayton, Illinois has a population of 661. Clayton is less family-centric than the surrounding county with 28.18% of the households containing married families with children. The county average for households married with children is 28.35%.
The median household income in Clayton, Illinois is $31,250. The median household income for the surrounding county is $48,454 compared to the national median of $57,652. The median age of people living in Clayton is 40.1 years.
The average high temperature in July is 86.1 degrees, with an average low temperature in January of 17.4 degrees. The average rainfall is approximately 39 inches per year, with 18.2 inches of snow per year.
