There's the Piedmont Mopar club based in the Greensboro area. They put on the spring show in Farmington. Most of the members are good guys, but a couple bad apples have sort of spoiled things. I will not say any more because I am not a member, but the infighting is one reason that I never joined.
I've heard good things about Cape Fear Mopars. The Tidewater Mopar club is supposed to be a good one too, but it's in the Richmond, VA area. I believe they have several members from northern NC.
I'm a club of one here in Ramseur, NC...smack dab in the center of the state.
My garage is always open to fellow Moparites!
Steve