Area: total: 21 sq km land: 21 sq km water: 0 sq km
Area-comparative: about 0.1 times the size of Washington, DC
Land boundaries: total: 0.34 km border countries: China 0.34 km
Coastline: 40 km
Maritime claims: not specified
Climate: subtropical; marine with cool winters, warm summers
Terrain: generally flat
Elevation extremes: lowest point: South China Sea 0 m highest point: Coloane Alto 174 m
Natural resources: NEGL
Land use: arable land: 0% permanent crops: 0% permanent pastures: 0% forests and woodland: 0% other: 100% (1993 est.)