The population of Saint Lucia is expected to grow by 0 in 2025 and reach 185,000 in 2026. Migration (including immigration and emigration) increases population by 8 people yearly. On average there are 1,981 births and 1,467 deaths in Saint Lucia per year. Rate of natural increase is approximately 0.28 percent per year. The population density of Saint Lucia has changed from 193.4 in 1980 to 300.3 in 2023.
| Current population | 184,551 people at present (Sunday 20th of July 2025) | |
| Median Age | 38.1 years |
| Life expectancy | 77.2 years | |
| Population density | 302.2 per km2 |
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2025 | 184,000 | 0 (0.0%) | 8 | 38.1 | 1.41 | 302 | 36,000 (19.3%) |
| 2024 | 184,000 | 1,000 (0.5%) | 8 | 37.8 | 301 | 35,000 (19.2%) | |
| 2023 | 183,000 | 0 (0.0%) | 8 | 37.5 | 300 | 35,000 (19.1%) | |
| 2022 | 183,000 | 1,000 (0.6%) | 8 | 37.1 | 299 | 35,000 (19.0%) | |
| 2021 | 182,000 | 1,000 (0.6%) | 8 | 36.8 | 298 | 34,000 (18.9%) | |
| 2020 | 181,000 | 1,000 (0.6%) | 8 | 36.4 | 1.42 | 297 | 34,000 (18.8%) |
| 2019 | 0 | 0 (0.0%) | 8 | 36.1 | 1.43 | 296 | 34,000 (18.7%) |
| 2018 | 0 | 0 (0.0%) | 8 | 35.7 | 1.44 | 295 | 33,000 (18.6%) |
| 2017 | 0 | 0 (0.0%) | 8 | 35.3 | 1.45 | 293 | 33,000 (18.6%) |
| 2016 | 0 | 0 (0.0%) | 8 | 35.0 | 1.46 | 292 | 33,004 (18.5%) |
| 2015 | 177,206 | 785 (0.4%) | 8 | 34.7 | 1.47 | 291 | 32,790 (18.5%) |
| 2010 | 172,580 | 1,558 (0.9%) | 8 | 32.9 | 1.54 | 283 | 31,841 (18.5%) |
| 2005 | 163,714 | 1,463 (0.9%) | 570 | 29.9 | 1.68 | 268 | 37,793 (23.1%) |
| 2000 | 156,949 | 1,777 (1.1%) | -45 | 28.5 | 2.20 | 257 | 43,591 (27.8%) |
| 1995 | 147,044 | 1,797 (1.2%) | -190 | 27.6 | 2.89 | 241 | 42,297 (28.8%) |
| 1990 | 138,185 | 2,229 (1.6%) | -961 | 26.6 | 3.40 | 227 | 40,556 (29.3%) |
| 1985 | 126,418 | 1,950 (1.5%) | -852 | 24.4 | 3.89 | 207 | 35,300 (27.9%) |
| 1980 | 117,987 | 1,697 (1.4%) | -1,628 | 23.5 | 4.70 | 193 | 31,314 (26.5%) |
| 1975 | 109,769 | 1,237 (1.1%) | -1,786 | 23.1 | 5.46 | 180 | 27,662 (25.2%) |
| 1970 | 104,160 | 1,411 (1.4%) | -1,930 | 22.4 | 6.10 | 171 | 24,902 (23.9%) |
| 1965 | 96,302 | 1,488 (1.6%) | -1,539 | 23.0 | 6.69 | 158 | 21,822 (22.7%) |
| 1960 | 89,897 | 1,017 (1.1%) | -1,874 | 23.6 | 6.97 | 147 | 19,292 (21.5%) |
In 2024 the population of Saint Lucia was 184,000 and the average age increased from 23.6 in 1960 to 37.8. Urban population has increased from 43,591 (27.8%) in 2000 to 36,000 (19.3%) in the current year. The population density of Saint Lucia has changed from 193.4 in 1980 to 300.3 in 2023.
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2020 | 0 | 0 (0.0%) | 8 | 36.4 | 1.42 | 297 | 34,000 (18.8%) |
| 2025 | 184,000 | 0 (0.0%) | 8 | 38.1 | 1.41 | 302 | 36,000 (19.3%) |
| 2030 | 186,000 | 0 (0.0%) | 8 | 39.9 | 1.43 | 306 | 37,000 (20.0%) |
| 2035 | 187,000 | 0 (0.0%) | 8 | 41.7 | 1.47 | 307 | 39,000 (21.1%) |
| 2040 | 187,000 | 0 (0.0%) | 8 | 43.3 | 1.51 | 306 | 42,000 (22.3%) |
| 2045 | 185,000 | 0 (0.0%) | 8 | 45.0 | 1.54 | 303 | 44,000 (23.7%) |
| 2050 | 182,000 | -1,000 (-0.6%) | 8 | 46.3 | 1.58 | 299 | 46,000 (25.1%) |
The life expectancy at birth should reach 81.4 (79.5 years for male and 83.4 years for females). Population density will go down to 298.8 people per square kilometer.
The demographics of Saint Lucia constitutes of 94,000 women and 90,000 men, which means there are 957 men per 1000 women. As far as age distribution goes, 23.1% of population (42,486) is 19 or younger, 64.9% of population (119,398) is between age 20 and 64 and 12.1% of population (22,301) is over 65.