Map references:
Africa
Area:
total: 413 sq km land: Saint Helena Island 122 sq km; Ascension Island 90 sq km; Tristan da Cunha island group 201 sq km water: 0 sq km
Area - comparative:
slightly more than twice the size of Washington, DC
Land boundaries:
0 km
Coastline:
Saint Helena: 60 km
Ascension Island: NA
Tristan da Cunha: 40 km