Population of Warrenville, Illinois as of May 2025. How many people live in Warrenville today?

The exact population of Warrenville, Illinois as of May 2025 is estimated at 13,553 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 Warrenville.

Check out more data on population in Illinois:

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