Located in the Prairie State, as of the 2010 census, Rock Island County had a population of 146,964.
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Listed below you will find population, income and education related statistics, as well as other pertinent information, for Rock Island County, IL.
|When compared to the state's average median age of 37.0 years, Rock Island County's median age is 3.1 years older.|
|When compared to the median income of individuals working in Illinois, Rock Island County's average income is $3,762 less than that of the state.|
|No Degree and/or Diploma||1%|
|High School Diploma and/or GED||50%|
|Masters Degree or Higher||11%|
|Rock Island County has 10% more citizens, with only high school diploma and/or GEDs, than the state's general population's average, in Illinois.|
|City Homepage||Visit this City's Official Site|
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