Hillsboro is located in Illinois. Hillsboro, Illinois has population of 5,808. Hillsboro is less family-centric than the surrounding county with 20% of the households with children.
The median household income in Hillsboro, Illinois is $51,686. The median household income for the surrounding county is $50,659 compared to the national median of $61,963. The median age of people living in Hillsboro is 39.4 years.
The average high temperature in July is 90.7 degrees, with an average low temperature in January of 21.1 degrees. The annual precipitation is 40.18.