Holder is located in Illinois. Holder, Illinois has a population of 727.
The median household income in Holder, Illinois is $95,313. 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 Holder is 33.5 years.
The average high temperature in July is 85.5 degrees, with an average low temperature in January of 15.2 degrees. The average rainfall is approximately 39.4 inches per year, with 19.3 inches of snow per year.
