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Spain's population has slipped past its peak: from a high of 47,911,579 in 2023, it stands at 47,850,793 in 2026. That is a 1.7-fold increase on the 28,077,049 recorded in 1950. Numbers are roughly stable, edging down 0.10% a year. Population density sits at 95 people/km². Half the population is younger than 46.3 years, and the age structure is steadily tilting older: the median is projected to reach 51.8 by 2050. Women outnumber men, at 96 males per 100 females. By 2100, UN projections see it falling to 33,127,478 (-31% from 2026).
Total population
47,850,793
Density
95 people/km²
Median age
46.3 years
Growth rate
-0.10%
Spain passed its population peak 3 years ago in 2023, and has since declined by 0.1%. The population is aging rapidly; median age will rise from 46 in 2026 to 52 by 2050. UN projections show a decline to 33.1M by 2100.