What cities did Hurricane Katrina hit?
It hit Louisiana and Mississippi, but it hit the hardest in new Orleans, Louisiana
Hurricane Katrina is greater in damage in money. Katrina has nearly 3 times as much damage in money as Hurricane Andrew does, making Katrina the costliest hurricane on record and Andrew is the second costliest. Both hit New Orleans as a category 3 hurricane. Hurricane Katrina was more deadly overall (I don't know how they rate that, sorry.)