From a total population of 10,313, Bay Saint Louis has a median age of 41.3. The average age of males, in Bay Saint Louis, is 38.5 while the average age of females is 45.3. When you compare this to median age of Mississippi, Bay Saint Louis is 5.0 years older.
The median income of individuals, in Bay Saint Louis, is $22,084 while the average household income is $41,078. When comparing the median income of people living in Bay Saint Louis to the rest of Mississippi, the average income in Bay Saint Louis is $1,128 more.