Vermont (USA) is 18% larger than Slovenia.
Area: 20,273 km2 World Factbook
Population: 1,988,292 (July 2014) World Factbook
Slovenia, officially the Republic of Slovenia, is a nation state in southern Central Europe at the crossroads of main European cultural and trade routes. It borders Italy to the west, Austria to the north, Croatia to the south and southeast, and Hungary to the northeast. Wikipedia
Vermont is a state in the New England region of the northeastern United States. Vermont is the 6th smallest in area and the 2nd least populous of the 50 United States. It is the only New England state not bordering the Atlantic Ocean. Wikipedia