Westville is located in Illinois. Westville, Illinois has a population of 3,345. Westville is more family-centric than the surrounding county with 31.49% of the households containing married families with children. The county average for households married with children is 24.27%.
The median household income in Westville, Illinois is $51,522. The median household income for the surrounding county is $49,063 compared to the national median of $69,021. The median age of people living in Westville is 36.7 years.
The average high temperature in July is 85.7 degrees, with an average low temperature in January of 17.9 degrees. The average rainfall is approximately 41 inches per year, with 18.3 inches of snow per year.