1079: United Shapes
<a href="http://xkcd.com/1079/large/"><img class="alignnone" title="United Shapes" src="http://imgs.xkcd.com/comics/united_shapes.png" alt="" width="518" height="335" /></a>
Image text: That eggplant is in something of a flaccid state.
Click on the image above to see the large version, which makes every state perfectly clear. Additionally, Randall provides a closeup of the Colorado article. [1] (It is obviously a fake Wikipedia article.)
In the large version, all of the items inside the States make sense once you get your head oriented the correct direction. I can't for the life of me figure out what New York's shape is. Please help me out in the comments. I guess a key was too obvious.
There is also a pun in the image text on the word State. It is playing off the definition of the word as a noun (which means "The particular condition that someone or something is in at a specific time") and the word as a proper noun as in "The State of Florida".