Population and Demographics of Saint Lucia
Population changed +0.26% in 2024 · median age 34 years
Children under 15 make up 17.54% of Saint Lucia's population, while the working-age share is 72.84% and fertility is 1.4. Looking ahead, 172.1 thousand is projected for 2050 under the medium scenario, compared with 179.7 thousand in 2024.
Population Over Time in Saint Lucia
Saint Lucia's population stood at 0.159M in 2000 and 0.180M in 2024, equivalent to a +13.3% change over that period. By 2050, the medium path reaches 0.172M, which would make the population close to its 2024 size than in 2024. The chart connects dated reference points only and should not be read as an annual interpolated series.
Age Structure and Sex Balance
Saint Lucia has a mixed demographic profile in the 2024 broad age data. At 17.54%, the under-15 group is larger than the 9.62% aged 65+, while ages 15 to 64 account for 72.84%. The age balance is weighted toward younger residents.
Population by broad age group
Saint Lucia's 2024 population is 50.6% female and 49.4% male in the World Bank series. Females exceed males by 1.2 percentage points.
Female and male population share
Females made up 50.6% of the population in the World Bank's 2024 series, compared with 49.4% males.
What Is Shaping Population Change
Saint Lucia pairs a 2024 annual population rate of +0.26% with fertility of 1.4, with the youngest broad age group at 17.54% and the oldest at 9.62%.
Over the longer record, Saint Lucia changed +13.3% from 2000 to 2024, and the 2050 medium path differs from 2024 by -4.2%; interpreting the components of that change requires evidence not supplied by the aggregate series.
2024 estimate for Saint Lucia. The world comparison value is 2.25 children per woman.
Saint Lucia vs. World
Using one 2024 comparison table keeps the context consistent. Saint Lucia's population change is lower than the global rate, fertility is below the global level, and its population is older than the world median-age profile.
| Indicator | Saint Lucia | World | Year |
|---|---|---|---|
| Annual population change | +0.26% | +0.87% | 2024 |
| Total fertility rate | 1.4 | 2.25 | 2024 |
| Median age | 34 | 30.6 | 2024 |
These are same-year, same-table comparisons. The underlying country table identifies UN World Population Prospects 2024 as its demographic framework.
Key Takeaways
Saint Lucia has 179,744 people in the 2024 estimate, with the population changing +0.26% over the year.
Broad age shares show 9.62% aged 65+ compared with 17.54% under 15; the 15 to 64 group accounts for 72.84%.
The 2024 female and male shares are 50.6% and 49.4% respectively.
The 2050 medium projection is 0.172M, 4.3% below the 2024 estimate.
Frequently Asked Questions
What is the population of Saint Lucia?
The 2024 harmonized population estimate for Saint Lucia is 179,744 people.
Is the population of Saint Lucia growing or declining?
In the 2024 estimate, Saint Lucia's population is growing, with annual change of +0.26%.
What percentage of the population of Saint Lucia is aged 65 or older?
People aged 65 or older account for 9.62% of Saint Lucia's 2024 population in the UN WPP-based broad age data.
What is the projected population of Saint Lucia in 2050?
The UN World Population Prospects 2024 medium projection puts Saint Lucia's 2050 population at 172,081.
What is the fertility rate in Saint Lucia?
The 2024 harmonized fertility estimate for Saint Lucia is 1.4 children per woman.
Sources & methodology
This profile uses United Nations World Population Prospects 2024 as the primary framework for globally comparable population, age, fertility and projection data. The World Bank is the primary source for the female population share. Some country values were accessed through secondary retrieval interfaces that republish or organize UN data; those interfaces are identified below as secondary and are not treated as the original statistical publishers.
View sources used for this page
Primary global framework for the population estimates and projections.
Harmonized 2024 country table based on UN World Population Prospects 2024.
Harmonized broad age shares based on UN World Population Prospects 2024.
Harmonized reference for the 2000 population point.
Harmonized 2050 country projection based on UN World Population Prospects 2024.
Used for the 2024 female share; the male share is calculated as the remainder to 100%.