I have no idea what the rules are in your state (nor even which state that is), but Vermont requires that all campgrounds have potable water faucets within 400 feet of every "dependent" campsite (which means one without hookups), a toilet facility within 400 feet of every dependent campsite (which may be a normal toilet, a vault privy, or a composting or incinerating toilet--I suspect not a portable temporary unit like a porta-potty, but I'm no commissioner), and a dump station unless all RVs with interior plumbing are excluded or all sites have sewer hookups.
The threshhold for being a campground is having more than three campsites.