What is the Capital of French Guiana? Cayenne
Cayenne is the capital of French Guiana and has 66,149 residents (1999). The city is located on a former island at the mouth of the Cayenne River on the Atlantic coast. The city’s population has increased dramatically in recent times, mainly due to high immigration from the Caribbean and Brazil, but also due to high birth rates. Cayenne has a significant shrimp industry. Previously, there was also a sugar factory in the city.