The distribution of Shilluk communities has been likened to beads on a string, spread out on the banks of the White Nile, the one separated from the next by a distance of from 180 meters to 1.5 kilometers. Settlements range in size from hamlets made up of the mud and thatched-roof huts of a few families to villages of some one hundred families. At roughly the center of Shilluk country is the village of Pachoda, the residence of each succeeding Shilluk "king" (see "Sociopolitical Organization"). Population densities in Shilluk country exceed all others among the Nilotic-speaking peoples of the southern Sudan. Each hamlet is formed around a cluster of patrilineal kin who claim membership in a common clan. Individual clans are dispersed widely throughout Shilluk country. Postmarital residence is patrilocal, and each homestead within a hamlet consists of a hut for each adult man as well as a separate dwelling for each of his wives.