St. Lucia Population and Language

Almost the entire population of Saint Lucia are descendants of African slaves. Two out of five residents live in the capital Castries and its environs.

The indigenous people of the Caribbean who lived on the island when Europeans arrived (see Older History) were exterminated or expelled during the colonial era. Nowadays, Europeans’ descendants make up less than one percent of the population, but they form the core of the political and economic elite.

Saint Lucia Population Forecast

  • COUNTRYAAH.COM: Key populations estimated size and data of St. Lucia, including population density of how many people per square mile. Also included are facts for population and language.

There is also a small group of Indian descent in the country. Their ancestors were plantation workers who were brought from India by the British colonial power in the late 19th century.

The number of paperless immigrants in Saint Lucia increased at the end of the first decade of the 21st century. During two periods in 2007 and 2009, the immigration authority issued a general amnesty to illegal immigrants from other countries within the Caribbean cooperation organization Caricom, so that these would have the opportunity to apply for a residence permit or citizenship.

St Lucia Population and Language

Most residents are fluent in English, which is the country’s official language. A significant part of the population also speaks the mixed language (Creole language) patois, which is built in French with African elements.



black about 90%, small minorities of people of mixed origin, Indian origin or European-descended

Number of residents

178 844 (2017)

Number of residents per square kilometer

293 (2017)

Percentage of residents in the cities

18.6 percent (2017)

Nativity / birth

12.1 per 1000 residents (2016)

Mortality / mortality

7.5 per 1000 residents (2016)


0.5 percent (2017)

fertility rate

1.5 number of births per woman (2016)

Percentage of women

51.0 percent (2017)

Life expectancy

75 years (2016)

Life expectancy for women

78 years (2016)

Life expectancy for men

73 years (2016)


English is the official language, patois (mixed language built in French with African elements) is also spoken by many.