I cant think of anywhere you are more likely to die in a random hail of gunfire or be eaten by cannibals than being surrounded by 6,000 preppers.
Take a yacht with food and medical supplies out into the Pacific. A monohull so you can take a knock down in a storm and pop straight back up again.
Or a seastead. I'm starting to get excited here in French Polynesia about things moving forward on that front. Good things coming soon (tm).