Reagan, I heard they are in Egypt Valley and that area. Someone kills a hog about every year while deer hunting in Ohio. Some of them are huge.
I tried hunting in Egypt Valley years ago. One DNR guy said they find sign from time to time, but the odds of getting one without dogs are very slim. He also said there are groups of guys who do run dogs, and they do fairly well. So far the wild hog population in Ohio has stayed below 1000animals, and the DNR wants every one of them shot.