Leroy is located in Illinois. Leroy, Illinois has a population of 1,565.
The median household income in Leroy, Illinois is $78,512. The median household income for the surrounding county is $70,339 compared to the national median of $69,021. The median age of people living in Leroy is 44.4 years.
The average high temperature in July is 84.6 degrees, with an average low temperature in January of 15.2 degrees. The average rainfall is approximately 38.7 inches per year, with 19.3 inches of snow per year.