Waynesville is located in Illinois. Waynesville, Illinois has a population of 417. Waynesville is more family-centric than the surrounding county with 27.35% of the households containing married families with children. The county average for households married with children is 26.03%.
The median household income in Waynesville, Illinois is $69,286. The median household income for the surrounding county is $60,401 compared to the national median of $69,021. The median age of people living in Waynesville is 41.4 years.
The average high temperature in July is 85.5 degrees, with an average low temperature in January of 16.3 degrees. The average rainfall is approximately 39.5 inches per year, with 18.2 inches of snow per year.