NS Barteaux - 55% Annapolis Valley; 37% Haliax
According to the NS phone listings, there are 57 BARTEAUX surnames. Of these, about 55% still live in the Annapolis Valley. Another 37% or so are now in the capital city area of Halifax-Dartmouth and area.
This distribution probably has not changed since the 1700's. It goes to show how Nova Scotians prefer not to move from the place where they are born.