Members of the OECS:
Organization of Eastern Caribbean States

The OECS is a trade agreement of currently 8 countries in Caribbean.

All member states comprise a total area of 3,000 km² and about 0.57 million people. This is 0.00% of the habitable area around the world and 0.01% of the world population. The value of all exported goods of these 8 countries was 1.94 billion US dollars per year at last count.

Official website:
Map of member countries: OECS - Organization of Eastern Caribbean States
Anguilla0.02 M96 km² 
Antigua and Barbuda0.10 M440 km²1.37 bn US$
British Virgin Islands0.03 M150 km² 
Dominica0.07 M750 km²504.21 m US$
Grenada0.11 M340 km²1.04 bn US$
Montserrat0.01 M102 km² 
Saint Kitts and Nevis0.05 M260 km²980.74 m US$
Saint Lucia0.18 M620 km²1.62 bn US$