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The Holy See is projected to count 506 residents in 2026. That is down 43% from 880 in 1950. It is expanding at +1.38% a year. People are packed in tightly, at 1,151 people/km², among the most crowded places on Earth. It is among the world's oldest societies, with a median age of 56.2 years. Women outnumber men, at 91 males per 100 females. By 2100, UN projections see it rising to 1,361, up 169% from 2026.
Total population
506
Density
1,151 people/km²
Median age
56.2 years
Growth rate
+1.38%
The Holy See's population continues to grow, though at a moderate pace. The sex ratio of 91 males per 100 females is notably lower than the global average of ~101. In 2026, with a median age of 56, it is one of the world's oldest populations. Population density is high at 1,151 people per km². Looking ahead, UN projections show the population reaching 1.4K by 2100, more than double 2026's level.