From a total population of 12,160, Decatur County has a median age of 36.1. The average age of males, in Decatur County, is 35.2 while the average age of females is 36.5. When you compare this to median age of Indiana, Decatur County is 1.1 years younger.
The median income of individuals, in Decatur County, is $21,076 while the average household income is $45,363. When comparing the median income of people living in Decatur County to the rest of Indiana, the average income in Decatur County is $3,877 less.