Members of the USAN:
Union of South American Nations

The USAN is an alliance of states of currently 12 countries in South America.

All member states comprise a total area of 17.71 million km² and about 430.64 million people. This is 11.7% of the habitable area around the world and 5.6% of the world population. With an economic output of 2,787.81 bn US dollars annually, they represent around 3 percent of the global economy.

Map of member countries: USAN - Union of South American Nations

Argentina45.38 M2,780,000 km²
Bolivia11.67 M1,099,000 km²
Brazil212.56 M8,516,000 km²
Chile19.12 M757,000 km²
Colombia50.88 M1,142,000 km²
Ecuador17.64 M256,000 km²
Guyana0.79 M215,000 km²
Paraguay7.13 M407,000 km²
Peru32.97 M1,285,000 km²
Suriname0.59 M164,000 km²
Uruguay3.47 M176,000 km²
Venezuela28.44 M912,000 km²