Demerara-Mahaica (Region 4) is a region of Guyana, bordering the Atlantic Ocean to the north, the region of Mahaica-Berbice to the east, the region of Upper Demerara-Berbice to the south and the region of Essequibo Islands-West Demerara to the west.
It contains the country's capital Georgetown. Notable villages in the region include Buxton, Enmore, Victoria and Paradise.
Georgetown is the capital and largest city of Guyana. It is situated in Demerara-Mahaica, region 4, on the Atlantic Ocean coast, at the mouth of the Demerara River. It is nicknamed the "Garden City of the Caribbean". It is the retail, administrative, and financial services centre of the country, and the city accounts for a large portion of Guyana's GDP. The city recorded a population of 118,363 in the 2012 census.
All executive departments of Guyana's government are located in the city, including Parliament Building, Guyana's Legislative Building and the Court of Appeals, Guyana's highest judicial court. The State House (the official residence of the head of state), as well as the offices and residence of the head of government, are both located in the city. The Secretariat of the international organization known as the Caribbean Community (CARICOM), with 15 member-states and five associate partners, is also based in Georgetown.
The Demerara River is a river in eastern Guyana that rises in the central rainforests of the country and flows to the north for 346 kilometres until it reaches the Atlantic Ocean. Georgetown, Guyana's largest seaport and capital, is situated on the east bank of the river's mouth. The river divides Essequibo Islands-West Demerara (Region 3) on the west bank from Demerara-Mahaica (Region 4) to the east.
The name "Demerara" comes from a variant of the Arawak word "Immenary" or "Dumaruni" which means "river of the letter wood" (wood of Brosimum guianense tree).