Your question is hard, notanantiGnostic, since many groups fly below the radar and do not take out banner ads in the local papers annoucing their presence (or intentions). Many of the "usual suspects" like Jehovah Witnesses, Scientologists, etc are known to be in any one community, but others like Urantia are sort of like "fly under the radar" groups. I know that the LDS (Mormons) are in most areas, but I no longer believe they fall under the strict "Rick Ross Guide" for cults but are instead "questionable religions".
Most every community has Yogi instructors...how many are cultict by nature? What about Raelians ?[forum.culteducation.com
] What about Cryogenics? see: [forum.culteducation.com
I would LOVE to have an alarm go off anytime a cult or abusive group entered my community, but until Rick Ross invents one, we have only ourselves to be vigiliant against this mental tyranny.