The Scrambled States of America by Laurie Keller

At the first annual "states party," Virginia and Idaho hatch a plan to swap spots so each can see another part of the country. Before the party is over, all the states decide to switch places. In the beginning, every state is happy in its new location. But soon things start to go wrong. Will the states ever unscramble themselves and return to their proper places? Packed with madcap humor and whimsical illustrations, this quirky story, starring all fifty states, is chock-full of introductory facts and silly antics that will make learning geography as much fun as taking a vacation.