I do not know how many powhatan are there in VA. But I know one near to Midlothian Chesterfield. If this is the location then the area should not be bad in terms of population. Chesterfield it self is big county. Richmond downtown is near. ANother big county henrico is also near. In Richmond, HEnrico and Chesterfield there are 10-15 Nepalese Family. But I am pretty much sure they wont help you to go to place like nigy clubs and bars. Better make some american friends they can help your friend.