Population of Saint Lucia

As of May 2025, the population of Saint Lucia is 181.2 thousand. The number of inhabitants has increased by 477 in the last year, representing a growth of 0.28%. The median age of the population has increased in recent years, rising from 30.6 years in 2015 to 34.8 years in 2025. Currently, life expectancy at birth is 74.4 years and population density is 294.3 inhabitants per square kilometer.

Population Growth

The population growth rate of Saint Lucia peaked in 1980, reaching around 1.86% annually, but has since declined to approximately 0.26% in 2025. The annual increase in the number of people has also decreased from a peak of around 2.3 thousand in 1981 to nearly 477 in 2025.

Life Expectancy

In Saint Lucia, life expectancy at birth has been increasing, with the indicator rising from 72.2 years in 2005 to 74.4 years in 2025, representing an increase of more than 2 years over the past 2 decades.

Most populous cities in Saint Lucia

The cities of Saint Lucia are small, with the 5 most populated adding up to around 77.5 thousand inhabitants. The most populous city is Gros Islet, Gros-Islet, with approximately 25.2 thousand inhabitants. It is followed by Castries with 20 thousand and Bisee, Castries with 13 thousand.

These are the 20 most populous cities in Saint Lucia: