Population of Ottawa, Illinois as of October 2024. How many people live in Ottawa today?

USA / Illinois / Ottawa

The exact population of Ottawa, Illinois as of October 2024 is estimated at 18,840 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 Ottawa.

Population of Ottawa, IL


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This population of Ottawa IL is provided by US bureau of statistics.
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