Population of Gaia, Portugal as of January 2026. How many people live in Gaia today?

The exact population of Gaia as of January 2026 is estimated at 188,421 residents. Please note: this figure is an estimate and may slightly change as people get born and pass away, it also depends on migration to/from Gaia.

Check out more data on population in Portugal:

• Beja
• São Mamede de Infesta
• Bragança
• Sacavém
• Guarda
• Valongo
• Senhora da Hora