Population of St Austell, United Kingdom as of July 2025. How many people live in St Austell today?

The exact population of St Austell as of July 2025 is estimated at 20,900 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 St Austell.

Check out more data on population in United Kingdom:

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