What can I say to people?

The first thing that comes to mind is "No, are you?" After all, they are categorizing you based on not much of anything. But I'm sure there are better comebacks out there. That won't stop the first-timers though. Is there anything about how you dress or your hair that adds to the image?

Make them laugh about it and then change the subject. Say you'll get one when you need one but you've got enough clothes for now or something.

Or you could explain to them your reason for not having a boyfriend, whatever it may be (and would've been really helpful if you told us so we could give any kind of detailed response).

I know a lot of girls tell me they feel like they're messed up or inferior or something if they don't have a boyfriend, like it means there's something wrong with them or something. If most girls feel this way and bother other girls about it, that's probably why they're asking you all the time why you seem so ok with it.

The best thing to do is just say that you are waiting to find somebody that is worth your time, simple as that. I really didn't date at all through high school, and everybody thought I was stuck up because of it. So take the time to find a way to enjoy high school because it will be over soon enough.

i had that problem to.
i just told people to go f*** themselves if they had a problem :]
but if someone asks then make a sarcastic yet witty crack about it. and pretty soon people will leave you alone.

Tell people it's none of their damn business!