The total land area of the country is 2,040 km2, which is the 180th largest nation in the world by size. The Republic of Mauritius is constituted of the main island of Mauritius and several outlying islands. 

The second largest island is Rodrigues with an area of 108 km2 and situated 560 km to the east of Mauritius, the twin island of Agalega with a total land area of 2,600 hectares and situated some 1,000 km to the north of Mauritius. Saint Brandon is an archipelago comprising a number of sand-banks, shoals and islets.

 It is situated some 430 km to the north-east of Mauritius and is mostly used as a fishing base. The nation's exclusive economic zone (EEZ) cover about 2.3 million km2 of the Indian Ocean, including approximately 400,000 km2 jointly managed with the Seychelles.