From a total population of 9,840, Troy has a median age of 34.2. The average age of males, in Troy, is 32.9 while the average age of females is 35. When you compare this to median age of Illinois, Troy is 2.8 years younger.
The median income of individuals, in Troy, is $28,314 while the average household income is $69,467. When comparing the median income of people living in Troy to the rest of Illinois, the average income in Troy is $1,705 less.