Ahem...
These days, there really isn't much cultural difference between the communities. SoWal is basically one big happy family, as far as vacationing at the beach goes.
But if you are talking history, and not referring to the Native Americans who made their home here long before we did, Point Washington and old-town Santa Rosa were the first settlements. The two towns did not get along particularly well - especially around 1938 or so, when the old Santa Rosa school was closed in favor of the bright, shiny new Bay School in Point Washington. There were still hard feelings about that when I was a child and my mom was running all over SoWal trying to get enough parents to commit to Bay in order to keep it open. And my mom, bless her heart, REFUSED to use Santa Rosa Beach on her mail, except for that which pertained to our store in SRB. She often stated that if she wanted SRB as her address, she would move there.
As for the beach...Grayton was first. Seagrove was more or less settled and named by the McGee family. Dune-Allen was, of course, Eric and Jeanne Allen. Blue Mountain was named before either Seagrove or Dune-Allen, but I'm not sure of the details. And everything else just kind of filled in as the years went by.
