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In 2026, Saint Lucia's population is projected at 180,488. That is a 1.9-fold increase on the 92,991 recorded in 1950. It is growing modestly, at +0.17% a year. Settlement is fairly dense, at 293 people/km². Half the population is younger than 35.1 years, and the age structure is steadily tilting older: the median is projected to reach 45.7 by 2050. The sexes are close to evenly balanced, at 97 males per 100 females. By 2100, UN projections see it falling to 108,207 (-40% from 2026).
Total population
180,488
Density
293 people/km²
Median age
35.1 years
Growth rate
+0.17%
Saint Lucia's population continues to grow, though at a moderate pace. The population is aging rapidly; median age will rise from 35 in 2026 to 46 by 2050. UN projections show a decline to 108.2K by 2100.