You can use the search and find people in your town so long as they identified their location accurately. You'll probably have better luck messaging people directly than through this post, would be my guess.
I've tried messaging locals through BandMix before. Even with a free account which doesn't let you direct message other users, sometimes you can find people there who've listed their contact info in their Bio. Also, you could try Craigslist or Facebook Groups.
Oh, I see that there are no other Kompozers identifying with Red Bud, IL.
You might want to search some of the nearby town names.
I see you are 40 miles outside of St Louis. It'd probably be hard to get anyone from there to meet up for jam sessions. I used to play in a band that was 32 miles away and the distance definitely made it difficult.