Nicaragua officially the Republic of Nicaragua (Spanish: República de Nicaragua, pronounced ( listen)), is a representative democratic republic. It is the largest country in Central America with an area of 130,373 km2. The country is bordered by Honduras to the north and Costa Rica to the south. The Pacific Ocean lies to the west of the country, the Caribbean Sea to the east. Falling within the tropics, Nicaragua sits between 11 degrees and 14 degrees north of the Equator in the Northern Hemisphere. Nicaragua's abundance of biologically significant and unique ecosystems contribute to Mesoamerica's designation as a biodiversity hotspot. The capital city of Nicaragua is Managua. Roughly one quarter of the nation's population lives in the Nicaraguan capital, making it the second largest city and metropolitan area in Central America.