Rock City is located in Illinois. Rock City, Illinois has a population of 319. Rock City is more family-centric than the surrounding county with 37.93% of the households containing married families with children. The county average for households married with children is 21.44%.
The median household income in Rock City, Illinois is $54,167. The median household income for the surrounding county is $46,427 compared to the national median of $57,652. The median age of people living in Rock City is 32.8 years.
The average high temperature in July is 83.2 degrees, with an average low temperature in January of 11 degrees. The average rainfall is approximately 37.2 inches per year, with 33.2 inches of snow per year.
