It’s hard to say without more details, so I looked at some of your older posts and it looks like you’ve been unhappy there since day one.
Whether this is your depression or not and you’d have been unhappy anywhere, I don’t know, but I’ll tell you I’d have been miserable at a college that small for the reasons you’ve described. In fact, I went on to grad school with a much smaller class and was fairly miserable after loving undergrad.
If you’re that unhappy, maybe it’s time to give something new a try as long as the cost is the same and it’s affordable. What have you got to lose? If you have a solid group of true friends at your current college, you won’t lose them. Consider transferring an opportunity to meet more friends in an environment you may be happier in. You know you’re not going to meet anyone new where you are, and you’ve got 1.5 to 2 years to go. Are you OK with that?