United States is 15,992 times larger than Isle of Man.
Area: 572 km2 World Factbook
Population: 86,866 (July 2014) World Factbook
The Isle of Man, otherwise known simply as Mann, is a self-governing British Crown Dependency, located in the Irish Sea between the islands of Great Britain and Ireland. The head of state is Queen Elizabeth II, who holds the title of Lord of Mann. Wikipedia
The United States of America, commonly referred to as the United States, America, and sometimes the States, is a federal republic consisting of 50 states and a federal district. The 48 contiguous states and Washington, D.C., are in central North America between Canada and Mexico. Wikipedia