The Central Bank of West African States is a central bank serving the eight west African countries which comprise the West African Economic and Monetary Union:
Benin, Burkina Faso, Cote d'Ivoire, Guinea Bissau, Mali, Niger, Senegal, Togo
 
The West African Economic and Monetary Union is an organization of eight states of West Africa established to promote economic integration among countries that share a common currency, the CFA franc. Official name  
The land area (km2)  
Population ( est.)  
Language French
Capital