How many people were in the spanish empire?

At its height in the early 17th century, the Spanish Empire encompassed a vast territory across Europe, the Americas, Asia, and Africa, with an estimated population of around 25 to 30 million people. The empire's population varied significantly over time due to factors like colonization, indigenous populations, and migration. In the Americas alone, the indigenous population was estimated to be around 20 million before European contact, but this number dramatically decreased due to disease and colonization. Thus, the total population of the Spanish Empire fluctuated based on the regions included and the historical context.