Where'd Gilchrist, TX Go?

Jeff Masters has information on another Texas own that no longer exists thanks to Hurricane Ike:

The destruction of Gilchrist

Many of you have probably seen the photo of Gilchrist, Texas showing complete destruction of the town of 750 people, save for one lone home. High-resolution satellite imagery made available by NOAA's National Geodetic Survey (Figure 1) confirm that of the approximately 1000 structures existing in the town before Hurricane Ike, only about five survived the hurricane. Approximately 200 of these buildings were homes, and it is thought that some of the residents attempted to ride out the storm in their homes. According to media reports, about 34 survivors from Gilchrist and the neighboring communities of Crystal Beach and Port Bolivar have been fished out of Galveston Bay in the past few days. Rescuers who have reached Gilchrist have not been able to find any victims in the debris because there is no debris. Ike's storm surge knocked 99.5% of the 1,000 buildings in Gilchrist off their foundations and either demolished them or washed them miles inland into the swamplands behind Gilchrist. Until search teams can locate the debris of what was once was Gilchrist, we will not know the fate of those who may have stayed behind to ride out the storm.

There are a lot of areas along the Texas coast that just don't exist anymore. I'm wondering how many people have just vanished.