Benin Business Directory: BEN is the ISO 3 alphabet country code of Benin. Currency of Benin is CFA, which has a short code of XOF. Capital of Benin is Porto-Novo. Benin has the population of 11485674 and approximate area is 112622.00 square kilometers (or approx. 69983.3108 square miles). Population density of Benin is approx. 101/Km2 (or approx. 62.7614/mile2)