If you drive out RR12, about 15 miles, there are two bars on the left. One is "Was Riley's" and one is the Devil's Backbone Tavern. Devil's backbone has a couple of tables and as I recall, they are 50 cents a game. That was eight years ago, when I worked there, but it's the kind of place where nothing ever changes, so the price is probably the same now.
I've only been to Riley's once, back when it still was Riley's. I didn't play pool, so I don't know what they charge.