Franklin is located in Illinois. Franklin, Illinois has a population of 539. Franklin is less family-centric than the surrounding county with 19.5% of the households containing married families with children. The county average for households married with children is 26.7%.
The median household income in Franklin, Illinois is $64,219. The median household income for the surrounding county is $49,353 compared to the national median of $57,652. The median age of people living in Franklin is 38.8 years.
The average high temperature in July is 88.1 degrees, with an average low temperature in January of 18 degrees. The average rainfall is approximately 38.9 inches per year, with 17.4 inches of snow per year.