Slim pickins around the Queen City. There's the Charlotte/Ft. Mill KOA, Exit 88 in S.C. about 1/4 mile west of the big road. Easy on and off and about 2 or 3 miles south of Charlotte. Then the aforementioned Statesville KOA. For ambiance and price, my first choice would be
Ebenezer Park. Take Exit 82C, SC 161 for 1 mile to Mt. Gallant Rd., turn right for 4 miles to Boatshore Rd and turn right. There's a little price break for seniors, age 60. First come, first served, but with school back in session I'd be surprised if they were full. Hit the big road after 9 am to miss the morning rush. Travel safe.