From a total population of 15,710, Centralia has a median age of 35.1. The average age of males, in Centralia, is 33 while the average age of females is 36.3. When you compare this to median age of Washington, Centralia is 2.3 years younger.
The median income of individuals, in Centralia, is $18,980 while the average household income is $37,230. When comparing the median income of people living in Centralia to the rest of Washington, the average income in Centralia is $12,253 less.