From a total population of 9,587, Rock County has a median age of 41.6. The average age of males, in Rock County, is 40.6 while the average age of females is 42.6. When you compare this to median age of Minnesota, Rock County is 4.0 years older.
The median income of individuals, in Rock County, is $25,586 while the average household income is $48,403. When comparing the median income of people living in Rock County to the rest of Minnesota, the average income in Rock County is $6,056 less.