Population of Sidney, Ohio as of March 2025. How many people live in Sidney today?

The exact population of Sidney, Ohio as of March 2025 is estimated at 20,589 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 Sidney.

Check out more data on population in Ohio:

• Population of Youngstown
• Population of Middletown
• Population of Euclid
• Population of Cleveland Heights
• Population of Reynoldsburg
• Population of Hilliard
• Population of Gahanna
• Population of Fairborn
• Population of North Royalton
• Population of Austintown
• Population of Wooster
• Population of Xenia
• Population of Centerville
• Population of Pickerington
• Population of Trotwood
• Population of Rocky River
• Population of Forest Park