The population of Buenos Aires, Argentina in February 2026. How many residents now in Buenos Aires?

The estimated population of Buenos Aires as of February 2026 is around 3,120,612 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 Buenos Aires.

Check out more data on population in Argentina:

• Presidencia Roque Sáenz Peña
• Virrey del Pino
• Rafaela
• Trujui
• Trelew
• Ramos Mejía
• Castelar