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Belize is home to 428,644 people in 2026. That is a 6-fold increase on the 69,073 recorded in 1950. It is expanding at +1.33% a year, adding about 5.7K people a year. With only 19 people/km², it is one of the world's more sparsely settled countries. Half the population is younger than 27.3 years, and the age structure is steadily tilting older: the median is projected to reach 37.8 by 2050. The sexes are close to evenly balanced, at 102 males per 100 females. By 2100, UN projections put it at 447,373, up +4% from 2026.
Total population
428,644
Density
19 people/km²
Median age
27.3 years
Growth rate
+1.33%
Belize is experiencing rapid population growth, adding thousands of people each year. The population is aging rapidly; median age will rise from 27 in 2026 to 38 by 2050. Population density is low at 19 people per km².