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Slovakia's population is projected to have slipped past its peak: from a high of 5,518,055 in 2023, it is projected at 5,451,342 in 2026. That is a 1.6-fold increase on the 3,465,747 recorded in 1950. Numbers are roughly stable, edging down 0.16% a year. Settlement is fairly dense, at 111 people/km². Half the population is younger than 42.8 years, and the age structure is steadily tilting older: the median is projected to reach 49.3 by 2050. Women outnumber men, at 95 males per 100 females. By 2100, UN projections see it falling to 3,427,216 (-37% from 2026).
Total population
5,451,342
Density
111 people/km²
Median age
42.8 years
Growth rate
-0.16%
Slovakia passed its population peak 3 years ago in 2023, and has since declined by 1.2%. The population is aging rapidly; median age will rise from 43 in 2026 to 49 by 2050. UN projections show a decline to 3.4M by 2100.