What exactly do you mean by worst-case here? The actual worst case would be if nobody took any precautions, which almost certainly would result in more than 0.18% of the total US population dying.
Let's see. NY has 965 death per million. Next state is New Jersey (which is basically "New York by another name" in this situation) with 493. Next is Connecticut (see above) with 372. Next is Louisiana - which had a grand idea of proceeding with Mardi Gras - with 285. Do you think things will get three times as bad in Louisiana than they are now, while not getting any worse in New York? Or which state would you say would be the next worst case, not today but in the future? I'd certainly bet NY (with adjacent NJ and CT) will keep this sad championship.