From a total population of 5,982, Duvall has a median age of 33.5. The average age of males, in Duvall, is 31.5 while the average age of females is 35.6. When you compare this to median age of Washington, Duvall is 3.9 years younger.
The median income of individuals, in Duvall, is $38,805 while the average household income is $105,729. When comparing the median income of people living in Duvall to the rest of Washington, the average income in Duvall is $7,572 more.