Cayenne (; French pronunciation: [kajɛn]) is the capital city of French Guiana, an overseas region and department of France located in South America. The city stands on a former island at the mouth of the Cayenne River on the Atlantic coast. The city's motto is "fert aurum industria", which means "work brings wealth".At the 2015 census, there were 131,922 inhabitants in the metropolitan area of Cayenne (as defined by INSEE), 57,614 of whom lived in the city (commune) of Cayenne proper.