Rock Island is located in Tennessee. Rock Island, Tennessee has a population of 4,416. Rock Island is less family-centric than the surrounding county with 23% households with children. The county percentage for households with children is 29%.
The median household income in Rock Island, Tennessee is $39,849. The median household income for the surrounding county is $39,419 compared to the national median of $61,963. The median age of people living in Rock Island is 43.8 years.
The average high temperature in July is 87.3 degrees, with an average low temperature in January of 29.3 degrees. The annual precipitation is 53.65.