From a total population of 16,921, Stephenville has a median age of 24.7. The average age of males, in Stephenville, is 24.8 while the average age of females is 24.6. When you compare this to median age of Texas, Stephenville is 9.2 years younger.
The median income of individuals, in Stephenville, is $18,929 while the average household income is $35,015. When comparing the median income of people living in Stephenville to the rest of Texas, the average income in Stephenville is $7,584 less.