Dauphin Island is a city located in Alabama. With a 2020 population of 1,320, it is the 230th largest city in Alabama and the 9199th largest city in the United States. Dauphin Island is currently growing at a rate of 0.84% annually and its population has increased by 6.62% since the most recent census, which recorded a population of 1,238 in 2010. Spanning over 166 miles, Dauphin Island has a population density of 211 people per square mile.
The average household income in Dauphin Island is $96,921 with a poverty rate of 1.93%. The median rental costs in recent years comes to $979 per month, and the median house value is $240,500. The median age in Dauphin Island is 58 years, 58.4 years for males, and 57.9 years for females. For every 100 females there are 113.4 males.