1

One household. Or even one person, if they happen to be a sole survivor or an avatar of the Kelipah itself.

2

One clan. A few hundred at the most. If they persist, it's usually because the Kelipah requires them to exist rather than any scientific question of genetic viability.

3

One town. A few thousand, sufficient to make a viable population in a more rational Kelipah.

4

Many towns. A few tens of thousands, whether spread out in numerous towns or clustered in a single city as survivors of a formerly greater population.

5

Many cities. A few hundreds of thousands, sufficient for a small nation or a great feudal domain.

6

A nation. A million or more members of the society.

7

Several nations. Hundreds of millions of people.

8

A world. Billions of these beings are within the Kelipah.