Sao Paulo Population 2024. Sao paulo's 2024 population is now estimated at 22,806,704. Sao paulo (ap) — a major river in the brazilian metropolis of sao paulo is suddenly emerald green and clear skies.
Area city, 576 square miles. The two most populated cities of rio de janeiro and são paulo have a total population of 18, 970,926 people, as of 2019.