Hilton Head Island
Your Island Home!
The general zip codes for Hilton Head Island itself are 29926 and 29928 - the others are generally for post office boxes but may come up in a search.
The island is shaped like a foot so rather than directions relative to North, South, East, and West, it is common for people to say the 'toe' or 'ankle' or call of the foot, to tell you where to orient yourself. Having said that, in Sea Pines Resort (which is the largest area and takes up basically the whole toe area of the island) there is an area called South Beach and it's totally water oriented since it's proximate to Calibogue Sound and the Intracoastal Waterway.
Your primary decision will be to narrow down the location search first since there are so many great areas!