[Baalz]

Yes, but generally provinces with more than 10,000 population are pretty rare. I find that if I blood hunt in every province that has a population between 5k-10k that it often cuts my income about in half as the ones under 5k don't give that much income and the ones over 10k aren't very common. That's an expensive trade off, but in exchange you can easily get 100+ blood slaves a turn with which to do all kinds of nastiness. Again, in general, this is about the maximum you can effectively blood hunt unless you don't care about the diminishing returns of blood hunting in more populous provinces.