French Guiana is a territory of roughly 84,000 square kilometres on the northeast shoulder of South America that is legally part of France and, through France, the European Union's largest territory outside Europe. It is administered as a single territorial collectivity created in December 2015, with Cayenne as its capital and a state-appointed prefect alongside the elected assembly. More than nine tenths of the land is dense equatorial rainforest; the population, around 300,000 and growing by about 1.2 percent a year according to INSEE, lives almost entirely on the Atlantic coastal strip and along the Maroni and Oyapock rivers. It is the youngest and fastest-growing French region, the opposite demographic case to the ageing Antilles. French is the official language, but Guianese Creole, the Businenge Tongo of the Maroon peoples, at least six Amerindian languages, Hmong, Portuguese and Haitian Creole are all in daily use. The euro is the currency. Europe's spaceport at Kourou, the Amazon rainforest and one of the most plural populations in the French Republic define the place.
Cayenne's urban core is home to about 79,055 people.
Among the world's megacities, though, it's one of many — the giants of Asia and Latin America run larger still:
French Guiana competes internationally under two different arrangements. As part of France, its athletes represent France at the Olympic Games, and the territory's best-known international sportsman, the footballer Florent Malouda, played more than eighty times for the French national team and won the Champions League era honours of a long club career in England. Separately, French Guiana fields its own football team as a member of CONCACAF, the confederation covering North and Central America and the Caribbean, without being a member of FIFA; that lets it enter the Caribbean competitions and the Gold Cup while excluding it from World Cup qualifying. Its appearance at the 2017 Gold Cup produced an instructive collision between the two statuses: Malouda played for the territory despite his previous full international career with France, and the match against Honduras was awarded against French Guiana for fielding an ineligible player. The episode is remembered locally as an argument about who a Guianese athlete is allowed to be.
How mountains, coasts, and rivers shape settlement (LandScan).
Coming — dataWhere groups settled and how people move (GeoEPR + UNHCR).
Coming — dataNotable institutions, mappable as points.
Coming — data