Plainview is located in Illinois. Plainview, Illinois has a population of 1,056.
The median household income in Plainview, Illinois is $63,550. The median household income for the surrounding county is $53,890 compared to the national median of $57,652. The median age of people living in Plainview is 47.1 years.
The average high temperature in July is 86.4 degrees, with an average low temperature in January of 18.6 degrees. The average rainfall is approximately 40.2 inches per year, with 17 inches of snow per year.