stylistic:tone
Demographics

A census is normally held in Saint Lucia every 10 years. In the 2010 census, Saint Lucia reported a population of 165,595 in 58,920 households. This was a 5.1% increase from the 157,490 recorded at the previous census in 2001. Ages 0–14 made up 24.1% of the population whilst those 65 and over made up 8.6%. Nearly 40% of the island's population lived in the District of Castries, where the nation's capital of the same name is located.

Saint Lucia had a fertility rate of 1.4 children per woman in 2021, the lowest in the Americas. This is much lower than in 1990, when the birth rate was 3.4 children per woman, and significantly lower than in 1959, when the birth rate peaked at 6.98 children per woman. Most emigration from Saint Lucia is primarily to Anglophone countries, with the United Kingdom having almost 10,000 Saint Lucian-born citizens, and over 30,000 of Saint Lucian heritage. The United States is home to many Saint Lucians, especially areas such as Miami and New York City. Canada is also home to many Saint Lucians, and especially in the French-speaking province of Quebec in the city of Montréal. The median age of Saint Lucians was 33.1 years in 2021.