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Thailand's population has slipped past its peak: from a high of 71,735,329 in 2022, it stands at 71,559,614 in 2026. That is a 4-fold increase on the 20,428,402 recorded in 1950. Numbers are roughly stable, edging down 0.09% a year. Settlement is fairly dense, at 140 people/km². Half the population is younger than 41.0 years, and the age structure is steadily tilting older: the median is projected to reach 48.6 by 2050. Women outnumber men, at 95 males per 100 females. By 2100, UN projections see it falling to 45,555,065 (-36% from 2026).
Total population
71,559,614
Density
140 people/km²
Median age
41.0 years
Growth rate
-0.09%
Thailand passed its population peak 4 years ago in 2022, and has since declined by 0.2%. The sex ratio of 95 males per 100 females is notably lower than the global average of ~101. The population is aging rapidly; median age will rise from 41 in 2026 to 49 by 2050. UN projections show a decline to 45.6M by 2100.