Hillsdale is located in Illinois. Hillsdale, Illinois has a population of 399. Hillsdale is less family-centric than the surrounding county with 26% households with children. The county percentage for households with children is 26%.
The median household income in Hillsdale, Illinois is $74,375. The median household income for the surrounding county is $57,012 compared to the national median of $66,222. The median age of people living in Hillsdale is 42.9 years.
The average high temperature in July is 85.36 degrees, with an average low temperature in January of 13.08 degrees. The annual precipitation is 35.08.