Population of Barnstable, Massachusetts as of December 2024. How many people live in Barnstable today?

The exact population of Barnstable, Massachusetts as of December 2024 is estimated at 48,916 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 Barnstable.

Check out more data on population in Massachusetts:

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