Nicaragua, the largest of the Central American countries, has an area of 129,494 sq km (49,998 sq mi), which includes the area covered by the waters of Lake Nicaragua (about 8,000 sq km/3,089 sq mi) and Lake Managua (about 1,025 sq km/396 sq mi). Comparatively, the area occupied by Nicaragua is slightly smaller than the state of New York. The country has a length of 472 km (293 mi) N – S and a width of 478 km (297 mi) W – E . Bounded on the N by Honduras, on the E by the Caribbean Sea, on the S by Costa Rica, and on the W by the Pacific Ocean, Nicaragua has a total boundary length of 2,141 km (1,330 mi), of which 910 km (565 mi) is coastline.
In 1980, Nicaragua unilaterally abrogated its 1928 treaty with Colombia, confirming that nation's sovereignty over the Caribbean archipelago of San Andrés and Providencia, about 190 km (120 mi) off the Nicaraguan coast. Nicaragua also disputes the Treaty of Quita Sueño, ratified by the US Senate in July 1981, according to which Colombia received the uninhabited islands of Quita Sueño Bank, Roncador Cay, and Serrana Bank.
Nicaragua's capital city, Managua, is located in the southwestern part of the country.