Spain Population 2025 Forecast. The spain population reached 47.5 million people in dec 2021, compared with the previously reported figure of 47.4 million people in dec 2020; The population of spain increased by 82,346 during the first quarter of 2025, standing at 48,692,804 inhabitants on 1 april 2025.

The un estimates the july 1, 2025 population at 47,910,500. The current population of spain in 2025 is 47,473,373, a 0.1%.