Thousands will not be able to return for years, both because the damage is so catastrophic and because so many were already living in poverty. Many experts are telling churches and other groups to focus on helping people relocate permanently.
So where are they?
This neat map was based on more than 40,000 postings on Internet "safe lists" by Katrina survivors. ePodunk analyzed messages containing both the person's hometown and the location after fleeing the storm. It only shows American cities, though I know some ended up in Canada, and I'm sure elsewhere also. If you click to the full version of the map you can run your cursor over the points on the map to see city names and to click to information about the community.