Dave in TN wrote:
Unfortunately there are no campgrounds in or around Franklin. You have a few options if you don't mind driving 45 minutes. Up in Nashville, there are 3 campgrounds in the Music Valley Drive area...a KOA, a Jellystone, and one called Two Rivers, which will be the least expensive of them. South of Franklin, heading down 65 toward the AL border, is a campground called the Texas T. It's a pretty good spot right off the interstate. If a state park is more your speed, there are two that are 45-60 minutes from Franklin. Montgomery Bell SP has full hookup sites, and is near Dickson, west of Franklin. Henry Horton SP does not have sewer sites, but is a nice park south/southeast of Franklin.
Good luck.
Thanks Dave, That's pretty much what I was finding but had hoped for a hidden gem a little closer. I can stay at the convention hotel but really want to take the family and camp. I'll look at these and see if I want to make the daily drive each way.