Population of Castlebar, Ireland as of June 2025. How many people live in Castlebar today?

Ireland / Castlebar

The exact population of Castlebar as of June 2025 is estimated at 11,891 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 Castlebar.

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Check out more data on population in Ireland:

Midleton
Wicklow
Mallow
Ballina
Cobh
Arklow
Tullamore

This population of Castlebar is provided by the local bureau of statistics.
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