Hillsdale is located in Illinois. Hillsdale, Illinois has a population of 532. Hillsdale is more family-centric than the surrounding county with 32.33% of the households containing married families with children. The county average for households married with children is 26.3%.
The median household income in Hillsdale, Illinois is $73,750. The median household income for the surrounding county is $58,974 compared to the national median of $69,021. The median age of people living in Hillsdale is 37.5 years.
The average high temperature in July is 85.2 degrees, with an average low temperature in January of 14.5 degrees. The average rainfall is approximately 36.2 inches per year, with 28.8 inches of snow per year.
