So am I the only college student that doesn't party?

There is nothing wrong with you. There are plenty of people out there like you. You won't find them easily, because as you have written, you guys are not social beings. I do think you are very judgemental of others who are not like you. There's nothing wrong with going to parties and being social, and living in dorms, and enjoying your life. It's a choice, and I don't think you should group all these people together and stereotype them....as if they are all doing hook-ups and getting drunk.