Frankfort is located in Illinois. Frankfort, Illinois has a population of 20,040. Frankfort is more family-centric than the surrounding county with 44.79% of the households containing married families with children. The county average for households married with children is 37.33%.
The median household income in Frankfort, Illinois is $145,645. The median household income for the surrounding county is $95,751 compared to the national median of $69,021. The median age of people living in Frankfort is 41.9 years.
The average high temperature in July is 84 degrees, with an average low temperature in January of 16 degrees. The average rainfall is approximately 40.7 inches per year, with 28 inches of snow per year.
