Hey my dear!! I'm sorry you're feeling down! It's a tough situation though!
I moved a few times during Jr. High/HS, but obviously during those times you are surrounded by people that are your peers, so its a tad easier to make connections and lastly friendships! As you get older, the divides are greater and the oppurtunity to meet people in the same peer demographic dwindle...
I'm in an odd stage right now, because I'm young (24), married, not interested in "partying", and have no kids... A few of those statements automatically cut me out of the alot of the interests that people have in the same "AGE" group as me... However I firmly stick to the belief that age is just a number!
We've moved for professional reasons a couple times within the past 2 years... and I can tell you - it sucks to be somewhere you dislike!!! DH & I were in the Western suburbs of Chicago for 1 year... and we absolutely HATED it!! We were both miserable, mainly because we didn't like our location and the implications that came with it.... We didn't try to find positives though, only saw the negative aspects (commute, house, traffic, etc). Now, we are in MI - and we really like the area better!! That has helped alot, and I've already started to meet great people that live in the area... So things get better with time!!
Regardless of whether you utterly dislike the area you live in, and I don't know your situation as far as how stuck there you are - but I would try to find all of the positives of the situation, and then HIGHLIGHT those!
I know its tough, but if you have a great apartment?? Then take pleasure in decorating it... moved there for a job?? Then I would explore networking avenues, such as joining professional groups, i.e. Society of Human Resource Management, etc - to meet others in your field... Moved there for family obligations?? I would try to plan area specific family outtings to see some of the great parts of the country!! I have never been to Boston or Philidelphia, and I would love to see all of those historical sites in the Eastern US....
Everyone has provided some great input for meeting people, taking classes etc... I think there is a thread in the General Discussion area about "meeing new friends"... And of course, you have all of your friends at tPF!! I've found tPF has REALLY helped me transition during this last move... it gave me something where I could find enjoyment and other people to talk to, even if I was a bit lonely around the house...
^Sorry for the novel... obviously, I like to talk!!
Good luck with your situation my dear!! I don't know how long you've been there... but I hope with time, it will get better!