I have no doubt that's true. Sad, but true. Can you provide a source or googlable hint as to its source? It's too good an example of modern American ignorance to let go and I'd like confirmation before hurling it around. Thanks.
By the way, I was trying to send something to Arizona from a DC area department store and the clerk read the (correctly written) recipient's address and said: "Arizonia? What's Arizonia? That's so funny! Arizonia?!"
It was worse than I remembered. 29% couldn't place it on a map.
http://archives.cnn.com/2002/EDUCATION/11/20/geography.quiz/