Leroy is located in Illinois. Leroy, Illinois has a population of1,617.
The median household income in Leroy, Illinois is $77,834. The median household income for the surrounding county is $70,782 compared to the national median of $66,222. The median age of people living in Leroy is 40.6 years.
The average high temperature in July is 85.4 degrees, with an average low temperature in January of 14.3 degrees. The annual precipitation is 36.09.