From a total population of 116,934, Killeen has a median age of 27.7. The average age of males, in Killeen, is 26.8 while the average age of females is 28.6. When you compare this to median age of Texas, Killeen is 6.2 years younger.
The median income of individuals, in Killeen, is $20,709 while the average household income is $48,283. When comparing the median income of people living in Killeen to the rest of Texas, the average income in Killeen is $5,804 less.