From a total population of 6,482, Madison has a median age of 31.7. The average age of males, in Madison, is 30.8 while the average age of females is 33.3. When you compare this to median age of South Dakota, Madison is 5.1 years younger.
The median income of individuals, in Madison, is $21,272 while the average household income is $37,045. When comparing the median income of people living in Madison to the rest of South Dakota, the average income in Madison is $5,039 less.