West Virginia (USA) is 44% larger than Denmark.
Area: 43,094 km2 World Factbook
Population: 5,569,077 (July 2014) World Factbook
Denmark, is a Nordic country in Northern Europe, located southwest of Sweden and south of Norway, and bordered to the south by Germany. The Kingdom of Denmark comprises Denmark and two autonomous constituent countries in the North Atlantic Ocean, the Faroe Islands and Greenland. Wikipedia
West Virginia (/ˌwɛstvɚˈdʒɪnjə/(helpinfo)) is a state in the Appalachian, Upland South, and Mid-Atlantic regions of the United States, bordered by Virginia on the southeast, Kentucky on the southwest, Ohio on the northwest, and Pennsylvania and Maryland on the northeast. Wikipedia