Trinidad and Tobago is 2.6 times larger than Jacksonville, Florida.
Area: 5,128 km2 World Factbook
Population: 1,223,916 (July 2014) World Factbook
Trinidad and Tobago, officially the Republic of Trinidad and Tobago, is a twin island country off the northern edge of South America, lying just off the coast of northeastern Venezuela and south of Grenada in the Lesser Antilles. Wikipedia
Area: 1,988 km2 calculated
Jacksonville is the largest city in the U.S. state of Florida by population and the largest city by area in the contiguous United States. It is the county seat of Duval County, with which the city government consolidated in 1968. Wikipedia