according to Southern Poverty Klan estimated at about 6000 in the entire US to give you an idea. not sure about neo-Nazis. there was a klan gathering same place a month ago with several hundred klansmen and over 1000 protestors. i grew up in the South and when the klan would have a march or whatever, people in community stayed home - and it was a non-event. it only encourages them when they get notoriety. and of course most of these people were not from C’ville at all - outside agitators from left and right.
Probably about 4500 of those are undercover FBI agents.