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Sint Maarten (Dutch part) counts 44,447 residents as of 2026. That is a 31-fold increase on the 1,450 recorded in 1950. It is expanding at +1.11% a year. People are packed in tightly, at 1,307 people/km², among the most crowded places on Earth. Half the population is younger than 42.0 years, and the age structure is steadily tilting older: the median is projected to reach 43.8 by 2050. Women outnumber men, at 94 males per 100 females. By 2100, UN projections see it falling to 42,279 (-5% from 2026).
Total population
44,447
Density
1,307 people/km²
Median age
42.0 years
Growth rate
+1.11%
Sint Maarten (Dutch part)'s population continues to grow, though at a moderate pace. The sex ratio of 94 males per 100 females is notably lower than the global average of ~101. The population is gradually aging, with median age projected to reach 44 by 2050 (up from 42 in 2026). Population density is high at 1,307 people per km².