Indicator	Value
Total population	10,700,000–10,900,000 peopleUN DESA WPP [2024] 10,740,000 people·World Bank WDI [2024] 10,910,000 people
Median age	43.2 yearsUN DESA WPP [2024]
Life expectancy	79.8–80 yearsWorld Bank WDI [2024] 79.98 years·UNDP HDI [2023] 79.83 years
Ethnic groups	Czech 57.3%, Moravian 3.4%, other 7.7%, unspecified 31.6% (2021 est.); note: includes only persons with one ethnicityCIA World Factbook [2025] · 2026 archive
Languages	Czech (official) 88.4%, Slovak 1.5%, other 2.6%, unspecified 7.2% (2021 est.)CIA World Factbook [2025] · 2026 archive
Religions	Roman Catholic 7%, other believers belonging to a church or religious society 6% (includes Evangelical United Brethren Church and Czechoslovak Hussite Church), believers unaffiliated with a religious society 9.1%, none 47.8%, unspecified 30.1% (2021 est.)CIA World Factbook [2025] · 2026 archive
Urbanization	74.6% of total population (2023)CIA World Factbook [2025] · 2026 archive
Population growth	0.377 %World Bank WDI [2024]
Birth rate	7.7 per 1,000World Bank WDI [2024]
Death rate	10.3 per 1,000World Bank WDI [2024]
Urban population	72.8 %World Bank WDI [2024]
Languages (structured)	Balkan Romani Bavarian Central Romani Czech Czech Sign Language German Interslavic zonal constructed language Lower Silesian Polish Sinte-Manus Romani Slovak Vlax Romani Glottolog [2026]