From a total population of 11,675, Decatur County has a median age of 45. The average age of males, in Decatur County, is 43.7 while the average age of females is 46. When you compare this to median age of Tennessee, Decatur County is 6.7 years older.
The median income of individuals, in Decatur County, is $23,760 while the average household income is $37,219. When comparing the median income of people living in Decatur County to the rest of Tennessee, the average income in Decatur County is $1,051 less.