I have no idea if the whole clown purge is going to be a thing, but in case it is, here are the cities I've heard will be affected:
Greenville, South Carolina
Las Vegas, Nevada
Lehigh Valley, Pennsyvania
Los Angeles, California
To any of my American associates, even if you don't live in these ares, be careful. Carry a baseball bat, at minimum. Given the American propensity for violence, I have no doubt that the physically inclined among you will have any trouble.