The smallest colony in the world is Gibraltar (since 1969, the City of Gibraltar), with an area of 5.8 km² 1440 acres/21/4 miles².

Pitcairn Island, the only inhabited island (55 people in late 1993) of a group of four (total area 48 km² 188 miles²), has an area of 388 ha 960 acres/18 miles².