French Guiana is situated on the northeast coast of South America, and is bordered by Brazil to the south and the east and by Surinam to the west. The southern Serra Tumucumaque Mountains are part of the eastern frontier, whilst the rest is formed by the River Oyapock.
French Guiana's population of 250,109 (January 2013 est.), most of whom live along the coast, is very ethnically diverse. At the 2011 census, 56.5% of the inhabitants of French Guiana were born in French Guiana, 9.3% were born in Metropolitan France, 3.4% were born in the French Caribbean départements (Guadeloupe and Martinique), and 30.5% were born in foreign countries (primarily Suriname, Haiti, and Brazil).
The dominant religion of French Guiana is Roman Catholicism; the Maroons and some Amerindian people maintain their own religions. The Hmong people are also mainly Catholic owing to the influence of missionaries who helped bring them to French Guiana.