It is not possible they have made it into all dwellings this quickly following the storm. I don't have a death toll wish, it takes time to canvass the areas. On the flip side, if most of the residents evacuated, then this could be a reasonably accurate number.
Katrina kills at least 54; search continues for bodies
http://www.clarionledger.com/apps/pbcs.dll/article?AID=/20050829/NEWS0110/50829038
"Harrison County EMA spokesman Jim Pollard said 30 of the deaths were in a single Biloxi apartment complex where the tenants were drowned or crushed by debris.
Well one thing the reporter in Gulfport said was that many of those homes closest to the ocean were pricy, so I would guess most of those owners evacuated(probably some of those were 2nd homes also.) An update from our Dallas CBS local news is that most of the deaths were in a single apartment complex in Biloxi.