From a total population of 598,541, Seattle has a median age of 36. The average age of males, in Seattle, is 35.7 while the average age of females is 36.3. When you compare this to median age of Washington, Seattle is 1.4 years younger.
The median income of individuals, in Seattle, is $44,167 while the average household income is $67,365. When comparing the median income of people living in Seattle to the rest of Washington, the average income in Seattle is $12,934 more.