Population of Viana do Castelo, Portugal as of June 2025. How many people live in Viana do Castelo today?

The exact population of Viana do Castelo as of June 2025 is estimated at 37,860 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 Viana do Castelo.

Check out more data on population in Portugal:

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