From a total population of 655, Duncan has a median age of 38.7. The average age of males, in Duncan, is 37.5 while the average age of females is 39.7. When you compare this to median age of Arizona, Duncan is 2.2 years older.
The median income of individuals, in Duncan, is $17,593 while the average household income is $30,147. When comparing the median income of people living in Duncan to the rest of Arizona, the average income in Duncan is $7,944 less.