Population of New Castle, Delaware as of February 2025. How many people live in New Castle today?

USA / Delaware / New Castle

The exact population of New Castle, Delaware as of February 2025 is estimated at 5,551 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 New Castle.

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Check out more data on population in Delaware:

Population of Middletown
Population of Glasgow
Population of Milford
Population of Georgetown

This population of New Castle DE is provided by US bureau of statistics.
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