Harrisburg is located in Illinois. Harrisburg, Illinois has a population of 8,375. Harrisburg is less family-centric than the surrounding county with 21.94% of the households containing married families with children. The county average for households married with children is 26.91%.
The median household income in Harrisburg, Illinois is $36,701. The median household income for the surrounding county is $47,541 compared to the national median of $69,021. The median age of people living in Harrisburg is 37.2 years.
The average high temperature in July is 87.5 degrees, with an average low temperature in January of 22.4 degrees. The average rainfall is approximately 48.5 inches per year, with 8.2 inches of snow per year.
