No, sorry. I live in Ohio too! (Columbus) I always have to travel at least 7 hours by car to get to an SPN con. The closest one to me is Nashville. Chicago is drivable too as is New Jersey. I think they would get a lot of interest if they did one in Cincinnati. BTW, the fan run Destiel con is in Cincinnati every May.
There is a con in Toronto in October. That's not too hard from Cleveland. 4 or 5 hours I think.