Indicator	Value
Total population	11,700,000–11,900,000 peopleUN DESA WPP [2024] 11,740,000 people·World Bank WDI [2024] 11,860,000 people
Median age	41.7 yearsUN DESA WPP [2024]
Life expectancy	82.1–82.3 yearsWorld Bank WDI [2024] 82.3 years·UNDP HDI [2023] 82.12 years
Ethnic groups	Belgian 75.2%, Italian 4.1%, Moroccan 3.7%, French 2.4%, Turkish 2%, Dutch 2%, other 10.6% (2012 est.)CIA World Factbook [2025] · 2026 archive
Languages	Dutch (official) 60%, French (official) 40%, German (official) less than 1%CIA World Factbook [2025] · 2026 archive
Religions	Roman Catholic 57.1%, Protestant 2.3%, other Christian, 2.8%, Muslim 6.8%, other 1.7%, atheist 9.1%, nonbeliever/agnostic 20.2% (2018 est.)CIA World Factbook [2025] · 2026 archive
Urbanization	98.2% of total population (2023)CIA World Factbook [2025] · 2026 archive
Population growth	0.666 %World Bank WDI [2024]
Birth rate	9.2 per 1,000World Bank WDI [2024]
Death rate	9.5 per 1,000World Bank WDI [2024]
Urban population	87.6 %World Bank WDI [2024]
Languages (structured)	Dutch Eastern Yiddish French German Langue des signes de Belgique Francophone Limburgan Moselle Franconian Neo (Artificial Language) Picard Vlaamse Gebarentaal Walloon Western Flemish Western Yiddish Glottolog [2026]