Dominican Rep. is 4.4 times larger than Jamaica.
Area: 48,670 km2 World Factbook
Population: 10,349,741 (July 2014) World Factbook
The Dominican Republic is a nation on the island of Hispaniola, part of the Greater Antilles archipelago in the Caribbean region. Wikipedia
Area: 10,991 km2 World Factbook
Population: 2,930,050 (July 2014) World Factbook
Jamaica is an island country situated in the Caribbean Sea, comprising the third-largest island of the Greater Antilles. Wikipedia