The population of Rio de Janeiro, Brazil in September 2025. How many residents now in Rio de Janeiro?

The estimated population of Rio de Janeiro as of September 2025 is around 6,211,223 residents. Please note: this population number is an estimate and may slightly change as people get born and die, it also depends on migration to/from Rio de Janeiro.

Check out more data on population in Brazil:

• Bragança
• Bento Gonçalves
• São Mateus
• Altamira
• Barcarena
• Resende
• Crato