From a total population of 16,915, Dukes County has a median age of 45.7. The average age of males, in Dukes County, is 44.7 while the average age of females is 46.7. When you compare this to median age of Massachusetts, Dukes County is 6.4 years older.
The median income of individuals, in Dukes County, is $33,738 while the average household income is $65,518. When comparing the median income of people living in Dukes County to the rest of Massachusetts, the average income in Dukes County is $2,703 less.