They all moved to Lee county. I saw 27 this evening down in my bottom pasture.
I normally hunt in Lee County, but I've been laid up most of this year. The property on which I hunt is just south of Lexington, and the neighbors there say they've indeed been seeing a fair amount of hogs. But, I don't know that they've concentrated in the area, but rather they just keep making more faster than we can shoot 'em.
As DNS commented recently, for us as hunters it's a First World Problem.
OTOH, I know of someone who gave up farming in the area because the hogs were so bad. Actually, I think he simply retired but he blames the hogs.