During the 13th century, the population may have reached as high as 5,000, divided between the two main settlements of Eystribygð (Eastern Settlement) and Vestribygð (Western Settlement).
I 1200-tallet har befolkningen måske været helt oppe på 5.000 personer, der var delt mellem de to primære bosættelser Eystribygð (Østbygden) og Vestribygð (Vesterbygden).