The exact population of Olney, Illinois as of March 2026 is estimated at 8,701 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 Olney.
Population of Olney, Illinois as of March 2026. How many people live in Olney today?
USA / Illinois / OlneyCheck out more data on population in Illinois:
- Population of Naperville
- Population of Champaign
- Population of Arlington Heights
- Population of Schaumburg
- Population of Palatine
- Population of Mount Prospect
- Population of Hoffman Estates
- Population of Glenview
- Population of Moline
- Population of Crystal Lake
- Population of Streamwood
- Population of Addison
- Population of St. Charles
- Population of Pekin
- Population of Galesburg
- Population of Lansing
- Population of Huntley
This population of Olney IL is provided by US bureau of statistics.
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