The list does not include entities not on ISO 3166-1, except for states with limited recognition. Thus constituent countries that are not included on ISO 3166-1, and other entities not on ISO 3166-1 like the European Union, are not included. Figures used in this article are mainly based on the latest censuses and official estimates or projections.
Spain’s population peaked at 47.08 million people in 2011. In the years following, Spain’s population declined until 2017 when it began increasing again back to 46.75 million in 2020. Between 2016 and 2020, the population increased at very small rates between 0.03% and 0.1%.