As of May 2026, the population of Sint Maarten is 44.5 thousand. The number of inhabitants has increased by 121 in the last year, representing a growth of 0.25%. The median age of the population has increased in recent years, rising from 42.8 years in 2016 to 49.4 years in 2026. Currently, life expectancy at birth is 76.5 years and population density is 1.3 thousand inhabitants per square kilometer.
The population growth rate of Sint Maarten peaked in 1982, reaching around 10.33% annually, but has since declined to approximately 0.27% in 2026. The annual increase in the number of people has also decreased from a peak of around 3.35 thousand in 2012 to nearly 121 in 2026.
In Sint Maarten, life expectancy at birth has remained stable over the last 20 years, hovering around 76 years since 2006.
These are the 7 most populous cities in Sint Maarten:
| # | City | Population |
|---|---|---|
| 1 | Cul de Sac | 8,467 |
| 2 | Lower Prince’s Quarter | 8,000 |
| 3 | Koolbaai | 6,000 |
| 4 | Little Bay | 5,581 |
| # | City | Population |
|---|---|---|
| 5 | Upper Prince’s Quarter | 4,020 |
| 6 | Philipsburg | 1,400 |
| 7 | Simson Bay Village | 700 |