Monaco (mon'ukō, mōnä'kō, Fr. mônäkō') [key], officially Principality of Monaco, independent principality (2005 est. pop. 32,400), c.370 acres (150 hectares), on the Mediterranean Sea, an enclave within Alpes-Maritimes dept., SE France, near the Italian border. It consists of four adjoining quarters—La Condamine, the business district; Monte Carlo, the site of the famous casino; Monaco-Ville, the capital, atop a rocky promontory; and Fontvieille, an area of light industry built largely on reclaimed land.