!Dominican Republic Dominican Republic is a country in the Caribbean region. Its capital city is Santo Domingo. Population of this country in 2003 was 8,745, 000 having with a population density of 179 per sq km. It has a surface area of 48,511 sq km and its currency is peso. It is also known as ST. DOMINGO, a republic forming the E. part of the island of Haiti, and consisting of two-thirds of it; it belonged alternately to France and Spain till 1865, when, on revolt, the Spaniards were expelled, and a republic established; the capital is St. Domingo, and the chief port Puerto Plata.