From a total population of 9,885, Newcastle has a median age of 39.3. The average age of males, in Newcastle, is 35.8 while the average age of females is 41.1. When you compare this to median age of Washington, Newcastle is 1.9 years older.
The median income of individuals, in Newcastle, is $55,093 while the average household income is $110,456. When comparing the median income of people living in Newcastle to the rest of Washington, the average income in Newcastle is $23,860 more.