Portugal is 19% larger than Serbia.
Area: 77,474 km2 World Factbook
Population: 7,209,764 (July 2014) World Factbook
Serbia, officially the Republic of Serbia, is a country located at the crossroads of Central and Southeast Europe, covering the southern part of the Pannonian Plain and the central Balkans. Wikipedia
Area: 92,145 km2 Wikipedia
Population: 10,459,806 (2,013) World Bank
Continental Portugal or Mainland Portugal is the part of the territory of Portugal located in the Iberian Peninsula and so in Continental Europe. Continental Portugal is also commonly referred to - by the Portuguese - simply as the Continent. Wikipedia