Discover business opportunities, in or around Rock Island County, with well-established brands, who are looking for people like you to help them grow.
As of the 2010 United States Census, Rock Island County, located in the Prairie State, had a total population of 146,964 people. This makes Rock Island County the two hundred eighty first-most populated city in the state of IL.
From a total population of 146,964, Rock Island County has a median age of 40.1. The average age of males, in Rock Island County, is 38.5 while the average age of females is 41.9. When you compare this to median age of Illinois, Rock Island County is 3.1 years older.
The median income of individuals, in Rock Island County, is $26,257 while the average household income is $48,226. When comparing the median income of people living in Rock Island County to the rest of Illinois, the average income in Rock Island County is $3,762 less.
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