You are a good friend. And remember that sometimes you can't do anything. I agree with you that he has to get out of that environment.

It is a little hard to know where to look not particularly knowing more about your friend but..

- how about the Samaritans? If they can't help him I am sure they have resources for him (or if you want to call) Samaritans |. At one point in my life I volunteered for a similar local program and if we couldn't help we had a network that probably could.
- Not sure if he is religious or would be willing to go to a local church and talk about his problems.
-Search on google for youth programs in your area -- just found this one Statistics on Homeless Youth in America | Covenant House

I wish I knew a specific answer but often times these things are local.

If his dad is a drug dealer or you suspect as much call in an anonymous tip to law enforcement.