Rock Island is located in Illinois.
Rock Island, Illinois has a population of
37,773.
Rock Island is
less
family-centric than the surrounding county with
25% households with children.
The county percentage for households with children is 26%.
The median household income in Rock Island, Illinois is
$51,309.
The median household income for the surrounding county is $57,012
compared to the national median of $66,222.
The median age of people living in Rock Island is
38.5 years.
Rock Island Weather
The average high temperature in July is 85.1
degrees, with an average low temperature in January of 13.3 degrees.
The annual precipitation is
35.1.
