Population Of Spain 2025 In Millions. Spain shows a moderate population density, with 96 people per square km and it was in position 106th in our ranking of density population in 2025. As of december 2025, the population of spain is 47.5 million.

76 rows the current population of spain is 47,905,732 as of december 13, 2025, based on interpolation of the latest united nations data. The population of spain is projected.