Downey is located in Illinois. Downey, Illinois has a population of 15,006.
The median household income in Downey, Illinois is $41,679. The median household income for the surrounding county is $82,613 compared to the national median of $57,652. The median age of people living in Downey is 24.3 years.
The average high temperature in July is 80.3 degrees, with an average low temperature in January of 15.5 degrees. The average rainfall is approximately 35.9 inches per year, with 38.3 inches of snow per year.