Clayton is located in Illinois. Clayton, Illinois has a population of 604. Clayton is less family-centric than the surrounding county with 14.37% of the households containing married families with children. The county average for households married with children is 27.52%.
The median household income in Clayton, Illinois is $47,386. The median household income for the surrounding county is $58,587 compared to the national median of $69,021. The median age of people living in Clayton is 46.1 years.
The average high temperature in July is 86.3 degrees, with an average low temperature in January of 17.1 degrees. The average rainfall is approximately 38.8 inches per year, with 16.9 inches of snow per year.
