How many people stayed on a crannog?
Crannogs varied in size but it would probably be an extended family of parents, grand parents and children, aunts uncles, cousins, etc. Crannogs were used from 5,000 years ago to as recently as 250 years ago, so the number of people staying there would have changed as the function of crannogs changed.
Barrie Andrian MIFA, FSAScot, The Scottish Crannog Centre (UK)