Camping in Atlanta ga

East Atlanta is NOT a good neighborhood and unlikely you will find anything east of 285. Further west, past Six Flags on out toward Douglasville, there may be something - John Bleakley had a huge RV dealership there a few years ago and there should be something. I personally am not familiar with that area, other than I go through there fairly often.
East of 285 is neighborhood with dense population and lots of crime