Is anyone throwing a party of any type that you’re invited to? Go. Find someone you like, then get them to introduce you to other people.
Bowling? Everyone likes bowling (or at least, very few hate it). Same idea; meet someone, get them to introduce you to their friends, have those friends introduce you to their friends, and so on.
Is there a local Craigslist? Post an ad for in the plutonic section for someone to hang out with, to go to museums with (or whatever you have in that town), go hiking with, or whatever you want to do with them.
Meetup.com? Try it?
Get to know your local baristas. Know their names, always say hi to them. Then, at the very least, you’ll have a minimal amount of external human contact every day.