Plainville is located in Illinois. Plainville, Illinois has a population of 323. Plainville is more family-centric than the surrounding county with 36.99% of the households containing married families with children. The county average for households married with children is 27.52%.
The median household income in Plainville, Illinois is $56,786. 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 Plainville is 32.4 years.
The average high temperature in July is 86.5 degrees, with an average low temperature in January of 18.6 degrees. The average rainfall is approximately 39.2 inches per year, with 15.2 inches of snow per year.
