Many on this site use RV Park Review.com as a campground research tool. I've provided a link below. If you haven't used it before just click on the state you're interested in and then you can scroll through the cities listed along the left side for RV parks/campgrounds in that area. The reviews are provided by real campground users rather than a company whose objective is selling advertising. You can usually access the campground's web site and a map of the location from the site. Good luck finding what you want.
http://www.rvparkreviews.com/
