Dominican RepublicDominican Republicis a sovereign state occupying the eastern two thirds of the island of Hispaniola, in the Greater Antilles archipelago in the Caribbean region.Santo Domingo, officially Santo Domingo de Guzmán, is the capital and largest city in the Dominican Republic and the largest city in the Caribbean by population. In 2010, its population was counted as 965,040.Yaque del Norte River, Spanish Río Yaque del Norte, river in central and northwestern Dominican Republic, the largest river in the country.The Artibonite Riveris a 320 km long river in Haiti. It is the longest as well as the most important river in Haiti and the longest on the island of Hispaniola. Forming part of the international border between Haiti and the Dominican Republic, the river's sources are in the Cordillera Central in the Dominican Republic, however most of its length lies in Haiti.Hispaniolais the 22nd-largest island in the world, located in the Caribbean island group, the Greater Antilles. It is the second largest island in the Caribbean after Cuba, and the tenth most populous island' in the world. Two sovereign nations share the 76,192-square-kilometre (29,418 sq mi) island.The Dominican Republic, at 48,445 km2 (18,705 sq mi), is nearly twice as large as its neighbor,Haiti, which comprises 27,750 km2 (10,710 sq mi).