Area: 110,997 km²
Population: 6,423,207 (2025)
Population Density: 57.9 inhabitants per km²
Language: Bulgarian
Religion: (2021) Christians: 71.5% (Eastern Orthodox Christians: 69.3%, Protestants: 1.7%, Catholics: 0.9%, Armenian Apostolic Christians: 0.1%, other Christians: 0.3%). Muslims: 10.8%. 
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), Food and Agriculture Organization of the United Nations (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)