Not sure what variety of flooding you are asking about, but the entire Waccamaw Neck area is a low-lying strip of land between two large bodies of water.
1) Isolated flooding from heavy rain storms is a possibility on any lot that was not properly graded, regardless of location. It's not unusual to have minor flooding on some roads during a heavy summer thunderstorm, but it usually clears pretty quickly. Our soil is basically sand and can absorb a lot of water.
2) Coastal flooding due to lunar tides is primarily a problem only on the island itself, around some full moons and new moons. The homes were built to take this into consideration and property damage is not really an issue unless you count the underbodies of your vehicles.
3) Flooding from hurricanes is a potential problem everywhere in PI, depending upon the severity of the hurricane. Fortunately, major hurricanes have managed to avoid us since 1989, and most of the building explosion has occurred since then, so it's really anybody's guess what will happen when the next big one arrives. Evacuation plans have recently been reworked to call for evacuations based on the likelihood of flooding. Georgetown County's plan is explained
<Here> . If you are able to figure it out, please explain it to us.
The only given is that any personal decision to evacuate will need to be made at least 24 hours prior to an announced evacuation. Anyone waiting until they are told to leave are very likely to ride out the hurricane stuck in gridlock on Hwy 17.