Plainview is located in Illinois. Plainview, Illinois has a population of 339.
The median household income in Plainview, Illinois is $52,708. The median household income for the surrounding county is $58,227 compared to the national median of $69,021. The median age of people living in Plainview is 37.3 years.
The average high temperature in July is 87.4 degrees, with an average low temperature in January of 20 degrees. The average rainfall is approximately 39.6 inches per year, with 15.7 inches of snow per year.