Columbia's admission's philosophy is holistic. As Lagging suggested, if this is ALL you have going for you, then you need to be worried. Otherwise, if the rest of the app is extremely strong, you will at least be competitive. Beyond that, we can tell you nothing.
You'll want to get yr ranking up a little, but that SAT score is fine. I had a 2260 SAT I and got in RD. That being said, worry more about the quality of your essays and overall application than basic stats.
@itdoesdeath: The rank is my main concern. My school/grade is notoriously competitive, the highest my rank has ever been is top 11%. It'll most likely remain the same. It is unweighted, so I hope adcoms will take that into account.