From a total population of 13,942, Washington has a median age of 37.8. The average age of males, in Washington, is 36.5 while the average age of females is 38.4. When you compare this to median age of Illinois, Washington is 0.8 years older.
The median income of individuals, in Washington, is $33,701 while the average household income is $72,247. When comparing the median income of people living in Washington to the rest of Illinois, the average income in Washington is $3,682 more.