From a total population of 1,291, Dauphin Island has a median age of 49.2. The average age of males, in Dauphin Island, is 50.9 while the average age of females is 48.2. When you compare this to median age of Alabama, Dauphin Island is 11.0 years older.
The median income of individuals, in Dauphin Island, is $33,638 while the average household income is $64,677. When comparing the median income of people living in Dauphin Island to the rest of Alabama, the average income in Dauphin Island is $9,702 more.