| Total population | 9,060,000–9,130,000 peopleUN DESA WPP [2024] 9,057,000 people·World Bank WDI [2024] 9,133,000 people |
| Median age | 40.9 yearsUN DESA WPP [2024] |
| Life expectancy | 74.4 yearsWorld Bank WDI [2024] 74.37 years·UNDP HDI [2023] 74.43 years |
| Ethnic groups | Belarusian 83.7%, Russian 8.3%, Polish 3.1%, Ukrainian 1.7%, other 2.4%, unspecified 0.9% (2009 est.)CIA World Factbook [2025] · 2026 archive |
| Languages | Russian (official) 71.4%, Belarusian (official) 26%, other 0.3% (includes small Polish- and Ukrainian-speaking minorities), unspecified 2.3% (2019 est.)CIA World Factbook [2025] · 2026 archive |
| Religions | Orthodox 48.3%, Catholic 7.1%, other 3.5%, non-believers 41.1% (2011 est.)CIA World Factbook [2025] · 2026 archive |
| Urbanization | 80.7% of total population (2023)CIA World Factbook [2025] · 2026 archive |
| Population growth | -0.499 %World Bank WDI [2024] |
| Birth rate | 7.03 per 1,000World Bank WDI [2024] |
| Death rate | 13.1 per 1,000World Bank WDI [2024] |
| Urban population | 79.2 %World Bank WDI [2024] |
| Languages (structured) | Balkan Romani / Baltic Romani / Belarusian / Central Romani / Eastern Yiddish / Erzya / Latvian / Lithuanian / Polish / Russian / Rusyn / Sinte-Manus Romani / Tatar / Ukrainian / Vlax RomaniGlottolog [2026] |