First-of-its-kind data shows where displaced New Orleanians landed after Katrina

When thousands of New Orleans homes flooded in the aftermath of Hurricane Katrina, the city lost more than half its population overnight.

Why it matters: They went somewhere, and we're finally getting a clearer idea of where they landed.

Flashback: Under the city's first mandatory evacuation, New Orleanians began leaving before the storm made landfall on Aug. 29, 2005, fleeing to cities like Baton Rouge, Lafayette, Houston, Atlanta and thousands of places in between and beyond. • When the levees broke, flooding about 80% of the city, it meant thousands more needed to be removed from a suddenly uninhabitable New Orleans. • The storm was also responsible for the deaths of nearly 1,400 people, according to the National Hurricane Center, with most "presumably" in Louisiana. They would ne