From a total population of 17,900, Clayton County has a median age of 45.4. The average age of males, in Clayton County, is 44 while the average age of females is 46.6. When you compare this to median age of Iowa, Clayton County is 7.4 years older.
The median income of individuals, in Clayton County, is $25,853 while the average household income is $47,725. When comparing the median income of people living in Clayton County to the rest of Iowa, the average income in Clayton County is $1,768 less.