For administrative purposes, Guyana is divided into 10 regions, each headed by a chairman who presides over a regional democratic council. Local communities are administered by village or city councils. The regions are Barima-Waini, Cuyuni-Mazaruni, Demerara-Mahaica, East Berbice-Corentyne, Essequibo Islands-West Demerara, Mahaica-Berbice, Pomeroon-Supenaam, Potaro-Siparuni, Upper Demerara-Berbice and Upper Takutu-Upper Essequibo.