Wilmington KOA Holiday at 7415 Market Street, Wilmington, North Carolina.

This place was fantastic! It is very well kept, and the staff is very friendly.
We stayed two nights so that we could spend a full day at the battleship, so we arrived midday on Saturday. It's a tad difficult to find this place is it's your first time - it is the road between the car wash and the gas station.
Check-in only took a few minutes ( we had booked online), and one of the maintenance guys got in a golf cart and led us to our site. He helped get situated into our spot, and asked if we needed any further help getting set up or anything.
The sites were spacious enough (we were not in a site with the patio), and all of the hookups were in the middle of the site (on the side of course).
We enjoyed it here, and kids enjoyed the playground and other activities. Our dog liked to go into the separate dog playground, but she is too old for some of the activities in there.
I recommend this KOA, and we will definitely stay there again!