Denmark is 21 times larger than Orange County, California.
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
Area: 2,064 km2 calculated
Orange County is a county in the U.S. state of California. As of the 2010 census, the population was 3,010,232 making it the third-most populous county in California, the sixth-most populous in the United States, and it more populous than twenty-one U.S. states. Its county seat is Santa Ana. Wikipedia