Ireland is 28 times larger than Cook County, Illinois.
Area: 70,273 km2 World Factbook
Population: 4,832,765 (July 2014) World Factbook
Ireland, also commonly referred to as the Republic of Ireland, is a sovereign state in Europe occupying about five-sixths of the island of Ireland. Wikipedia
Area: 2,468 km2 calculated
Population: 5,231,351 (2012)
Cook County is a county in the United States state of Illinois. As of the 2010 census, the population was 5,194,675. Wikipedia