Area: 110,994 km²

Population: 6,423,207 (2025)

Population Density: 57.9 inhabitants per km²

Language: Bulgarian

Religion (2021):

• Total Christians: 71.5%
  • Orthodox Christians: 62.7%
  • Catholics: 0.7%
  • Protestants: 1.1%
  • Other Christians: 7.0%
• Muslims: 10.8%
• Other Religions: 0.1%
• No Religion: 15.9%

Currency: Euro

Capital: Sofia

Form of Government: Parliamentary Republic

Member of:

• United Nations (UN)
• European Union (EU)
• Schengen Area
• North Atlantic Treaty Organization (NATO)
• Council of Europe
• Organization for Security and Co-operation in Europe (OSCE)
• World Trade Organization (WTO)
• International Monetary Fund (IMF)
• World Bank
• World Health Organization (WHO)
• UNESCO
• UNICEF
• Food and Agriculture Organization (FAO)
• International Labour Organization (ILO)
• Central European Initiative (CEI)
• Organization of the Black Sea Economic Cooperation (BSEC)
• European Bank for Reconstruction and Development (EBRD)
• International Criminal Police Organization (Interpol)
• International Organization for Standardization (ISO)
• World Intellectual Property Organization (WIPO)