Probably not. You can always call and ask but often it's as much about the impact to the site (weight of your RV, Killing the grass, size, access to the site, infrastructure, etc) and no one who wants to tent camp wants an RV sitting amongst them. Tent sites are designed just for that. Believe me, if they could have squeezed an RV site in there they would have. Usually tent sites are what was left over that couldn't support an RV. If you are considering an RV, campsites will be one of the least of your costs. Many CG's will offer a monthly rate. If you want to be off the grid, stay at State Parks or private land (if you ask). Usually they are much less than a private park although they have stay limits.