Rock City is located in Illinois. Rock City, Illinois has a population of 315. Rock City is more family-centric than the surrounding county with 31.71% of the households containing married families with children. The county average for households married with children is 22.59%.
The median household income in Rock City, Illinois is $54,688. The median household income for the surrounding county is $53,806 compared to the national median of $69,021. The median age of people living in Rock City is 40 years.
The average high temperature in July is 83.6 degrees, with an average low temperature in January of 10.3 degrees. The average rainfall is approximately 36.9 inches per year, with 36.1 inches of snow per year.
