Rip, you are isolated from their core constituancy. In South Carolina, for example, they have (claim) over 100,000 members.
I don't personally know any Klansmen from other states so I can't give numbers on them. Yes, the FBI shut down the KKK in the 30's and again in the 60's but they keep regrouping. They are still the same backward thinkers they ever were and I guarentee there would be volunteers or loose cannons.
(Note: I am not and never will be a member of the KKK. Unfortunately, I am related to one of those imbeciles.)