Population of Ostrava, Czechia as of June 2025. How many people live in Ostrava today?

The exact population of Ostrava as of June 2025 is estimated at 284,765 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 Ostrava.

Check out more data on population in Czechia:

• Třinec
• Přerov
• Prostějov
• Jablonec nad Nisou
• Mladá Boleslav
• Děčín
• Chomutov