The only one I know of close to me is the one Anna and Amy talked about and it was $10.00 a year. Not even a dollar a month. I don't mind that at all.
It is about 25 min away tho. There are no fenced in places in my county either. I take Keegan to my parents house and let her play tennis ball there. I try to get her there at least once a week. But at least at the dog park she can interact and sociliaze with other dogs.